title:
Summary and Outlook of the International Workshop on Aging Phenomena in
  Gaseous Detectors (DESY, Hamburg, October, 2001)

abstract:
  High Energy Physics experiments are currently entering a new era which
requires the operation of gaseous particle detectors at unprecedented high
rates and integrated particle fluxes. Full functionality of such detectors over
the lifetime of an experiment in a harsh radiation environment is of prime
concern to the involved experimenters. New classes of gaseous detectors such as
large-scale straw-type detectors, Micro-pattern Gas Detectors and related
detector types with their own specific aging effects have evolved since the
first workshop on wire chamber aging was held at LBL, Berkeley in 1986. In
light of these developments and as detector aging is a notoriously complex
field, the goal of the workshop was to provide a forum for interested
experimentalists to review the progress in understanding of aging effects and
to exchange recent experiences. A brief summary of the main results and
experiences reported at the 2001 workshop is presented, with the goal of
providing a systematic review of aging effects in state-of-the-art and future
gaseous detectors.


title:
Experimental Study of the Radiative Decays K+ -> mu+ nu e+e- and K+ ->
  e+ nu e+e-

abstract:
  Experiment 865 at the Brookhaven AGS obtained 410 K+ -> e+ nu e+e- and 2679
K+ -> mu+ nu e+e- events including 10% and 19% background. The branching ratios
were measured to be (2.48+-0.14(stat.)+-0.14(syst.))x10^-8 (m_ee>150 MeV) and
(7.06+-0.16+-0.26)x10^-8 (m_ee>145 MeV), respectively. Results for the decay
form factors are presented.


title:
Precise Determination of Electroweak Parameters in Neutrino-Nucleon
  Scattering

abstract:
  A systematic error in the extraction of $\sin^2 \theta_W$ from nuclear deep
inelastic scattering of neutrinos and antineutrinos arises from higher-twist
effects arising from nuclear shadowing. We explain that these effects cause a
correction to the results of the recently reported significant deviation from
the Standard Model that is potentially as large as the deviation claimed, and
of a sign that cannot be determined without an extremely careful study of the
data set used to model the input parton distribution functions.


abstract:
  New measurements of the $\eta$ and $K^0$ masses have been performed using
decays to 3$\pi^0$ with the NA48 detector at the CERN SPS. Using symmetric
decays to reduce systematic effects, the results $M(\eta) = 547.843\pm0.051$
MeV/c$^2$ and $M(K^0) = 497.625\pm0.031$ MeV/c$^2$ were obtained.


title: A direct measurement of W boson decay width

abstract:
  Based on 85 pb$^{-1}$ data of \ppbar collisions at $\sqrt{s}=1.8$ \tev\
collected using the D{\O}detector at Fermilab during the 1994-1995 run of the
Tevatron, we present a direct measurement of the total decay width of the \wb\
boson, $\Gamma_W$. The width is determined from the transverse mass spectrum in
the $W \to e+\nu_e$ decay channel and found to be $\Gamma_W = 2.23^{+ 0.15}_{-
0.14}$(stat.)$\pm 0.10$(syst.)GeV, consistent with the expectation from the
standard model.


title:
Characterization of Prototype BTeV Silicon Pixel Sensors Before and
  After Irradiation

abstract:
  We report on measurements performed on silicon pixel sensor prototypes
exposed to a 200 MeV proton beam at the Indiana University Cyclotron Facility.
The sensors are of n+/n/p+ type with multi-guard ring structures on the p+-side
and p-stop electrode isolation on the n+-side. Electrical characterization of
the devices was performed before and after irradiation up to a proton fluence
of 4E14 p/cm2. We tested pixel sensors fabricated from normal and
oxygen-enriched silicon wafers and with two different p-stop isolation layouts:
common p-stop and individual p-stop.


title:
Studies of aging and HV break down problems during development and
  operation of MSGC and GEM detectors for the Inner Tracking System of HERA-B

abstract:
  The results of five years of development of the inner tracking system of the
HERA-B experiment and first experience from the data taking period of the year
2000 are reported. The system contains 184 chambers, covering a sensitive area
of about 20 * 20 cm2 each. The detector is based on microstrip gas counters
(MSGCs) with diamond like coated (DLC) glass wafers and gas electron
multipliers (GEMs). The main problems in the development phase were gas
discharges in intense hadron beams and aging in a high radiation dose
environment. The observation of gas discharges which damage the electrode
structure of the MSGC led to the addition of the GEM as a first amplification
step. Spurious sparking at the GEM cannot be avoided completely. It does not
affect the GEM itself but can produce secondary damage of the MSGC if the
electric field between the GEM and the MSGC is above a threshold depending on
operation conditions. We observed that aging does not only depend on the dose
but also on the spot size of the irradiated area. Ar-DME mixtures had to be
abandoned whereas a mixture of 70% Ar and 30% CO2 showed no serious aging
effects up to about 40 mC/cm deposited charge on the anodes. X-ray measurements
indicate that the DLC of the MSGC is deteriorated by the gas amplification
process. As a consequence, long term gain variations are expected. The Inner
Tracker has successfully participated in the data taking at HERA-B during
summer 2000.


title: Study of the Decay phi --> eta pi0 gamma with the KLOE detector

abstract:
  In a sample of 5.3x10^7 phi-decays observed with the KLOE detector at the
Frascati phi-factory Dafne we find 605 eta pi0 gamma events with eta -->
gamma\gamma and 197 eta pi0 gamma events with eta --> pi+ pi- pi0. The decay
phi --> eta pi0 gamma is dominated by the process phi --> a0 gamma. From a fit
to the eta pi0 mass spectrum we find BR(phi --> ao(980) gamma)= (7.4 +-
0.7)x10^-5.


title: Study of the Decay phi --> pi0 pi0 gamma with the KLOE Detector

abstract:
  We have measured the branching ratio BR(phi --> pi0 pi0 gamma) with the KLOE
detector using a sample of ~5x10^7 phi decays. phi mesons are produced at
DAFNE, the Frascati phi-factory. We find BR(phi --> pi0 pi0 gamma) = (1.09 +-
0.03 (stat) +- 0.05 (syst))x10^-4. We fit the two--pion mass spectrum to models
to disentangle contributions from various sources.


title: Improved W boson mass measurement with the D0 detector

abstract:
  We have measured the W boson mass using the D0 detector and a data sample of
82 pb^-1 from the Tevatron collider. This measurement used W -> e nu decays,
where the electron is close to a boundary of a central electromagnetic
calorimeter module. Such 'edge' electrons have not been used in any previous D0
analysis, and represent a 14% increase in the W boson sample size. For these
electrons, new response and resolution parameters are determined, and revised
backgrounds and underlying event energy flow measurements are made. When the
current measurement is combined with previous D0 W boson mass measurements, we
obtain M_W = 80.483 +/- 0.084 GeV. The 8% improvement from the previous D0
measurement is primarily due to the improved determination of the response
parameters for non-edge electrons using the sample of Z bosons with non-edge
and edge electrons.


title: The CLEO-c Project - A new Frontier of QCD Physics

abstract:
  A proposal for a three-year program of charm and QCD physics with the CLEO
detector operating in the range of sqrt{s} = 3 - 5 GeV is presented. The CLEO-c
program will include studies of semileptonic and hadronic charm decays, as well
as searches for gluonic matter in the area of nonpertubative QCD. In addition,
spectroscopy of the Upsilon(1S), Upsilon(2S) and Upsilon(3S) resonances is
being carried out prior to the CLEO-c program.


title: Asymmetric jet cuts in dijet measurements at ZEUS

abstract:
  Asymmetric jet transverse energy cuts are now commonly used for dijet
analyses currently performed in the Breit Frame at ZEUS. I will discuss the
motivation for these cuts and present the results of studies identifying
unphysical behavior in the theroretically calculated dijet cross section when
purely symmetric cuts are used.


title: Search for Lepton-Flavor-Violating Decays of B Mesons

abstract:
  We have searched a sample of 9.6 million BB-bar events for the
lepton-flavor-violating decays B --> h e^{+-} mu^{-+}, B^+ --> h^- e^+ e^+, B^+
--> h^- e^+ mu^+, and B^+ --> h^- mu^+ mu^+, where h is pi, K, rho, and
K*(892), a total of sixteen modes. We find no evidence for these decays, and
place 90% confidence level upper limits on their branching fractions that range
from 1.0 to 8.3 X 10^{-6}.


title:
Dalitz Plot Analysis of the Decay D^+ --> K^- pi^+ pi^+ and Indication
  of a Low-Mass Scalar K pi Resonance

abstract:
  We study the Dalitz plot of the decay D^+ --> K^- pi^+ pi^+ with a sample of
15090 events from Fermilab experiment E791. Modeling the decay amplitude as the
coherent sum of known K pi resonances and a uniform nonresonant term, we do not
obtain an acceptable fit. If we allow the mass and width of the K^*_0(1430) to
float, we obtain values consistent with those from PDG but the chi^2 per degree
of freedom of the fit is still unsatisfactory. A good fit is found when we
allow for the presence of an additional scalar resonance, with mass 797 +/- 19
+/- 43 MeV/c^2 and width 410 +/- 43 +/- 87 MeV/c^2. The mass and width of the
K^*_0(1430) become 1459 +/- 7 +/- 5 MeV/c^2 and 175 +/- 12 +/- 12 MeV/c^2,
respectively. Our results provide new information on the scalar sector in
hadron spectroscopy.


title:
Anti-Search for the Glueball Candidate f_J(2220) in Two-Photon
  Interactions

abstract:
  Using 13.3 fb^{-1} of e^+e^- data recorded with the CLEO II and CLEO II.V
detector configurations at CESR, we have searched for f_J(2220) decays to
K^0_{S} K^0_{S} in untagged two-photon interactions. We report an upper limit
on the product of the two-photon partial width and the branching fraction,
Gamma_gamma gamma cdot B (f_J(2220) to K^0_{S} K^0_{S}) of less than 1.1 eV at
the 95% C.L: systematic uncertainties are included. This dataset is four times
larger than that used in the previous CLEO publication.


title:
Kinematical Reconstruction of the ttbar System Near its Threshold at
  Future e+e- Linear Colliders

abstract:
  We developed a new method for full kinematical reconstruction of the ttbar
system near its threshold at future linear e+e- colliders. In the core of the
method lies likelihood fitting which is designed to improve measurement
accuracies of the kinematical variables that specify the final states resulting
from ttbar decays. The improvement is demonstrated by applying this method to a
Monte-Carlo ttbar sample generated with various experimental effects including
beamstrahlung, finite acceptance and resolution of the detector system, etc. A
possible application of this method and its expected impact are also discussed.


title: The MINOS Light Injection Calibration System

abstract:
  A description is given of the light-injection calibration system that has
been developed for the MINOS long-baseline neutrino oscillation experiment. The
system is based upon pulsed blue LEDs monitored by PIN photodiodes. It is
designed to measure non-linearities in the PMT gain curves, as well as
monitoring any drifts in PMT gain, at the 1% level.


title:
Four-gap glass RPC as a candidate to a large area thin time-of-flight
  detector

abstract:
  A four-gap glass RPC with 0.3mm gap size was tested with hadron beam as a
time-of-flight detector having a time resolution of ~ 100ps. A thickness of the
detector together with front-end electronics is ~ 12mm. Results on time
resolution dependently on a pad size are presented. This paper contains first
result on the timing RPC (with ~ 100ps resolution) having a strip read-out.
Study has been done within the HARP experiment (CERN-PS214) R&D work. A obtaned
data can be useful if a design of a large area thin timing detector has to be
done.


title: The Target Silicon Detector for the FOCUS Spectrometer

abstract:
  We describe a silicon microstrip detector interleaved with segments of a
beryllium oxide target which was used in the FOCUS photoproduction experiment
at Fermilab. The detector was designed to improve the vertex resolution and to
enhance the reconstruction efficiency of short-lived charm particles.


title: Measurement of Gamma(Ks -> pi+pi-gamma)/Gamma(Ks -> pi0pi0)

abstract:
  We have measured the ratio R=Gamma(Ks -> pi+pi-gamma)/Gamma(Ks -> pi0pi0)
with the KLOE detector at the DAFNE e+e- collider. This measurement is fully
inclusive with respect to the pi+pi-gamma final state. The sample of over 10^6
two-pion decays of tagged Ks mesons allows a statistical error as low as 0.1%
to be obtained. The accuracy is limited by systematic uncertainties, which are
estimated primarily from data. We find R=2.236 +/- 0.003(stat) +/- 0.015(syst).


title: Lambda and Sigma0 Pair Production in Two-Photon Collisions at LEP

abstract:
  Strange baryon pair production in two-photon collisions is studied with the
L3 detector at LEP. The analysis is based on data collected at e+e-
centre-of-mass energies from 91 GeV to 208 GeV, corresponding to an integrated
luminosity of 844 pb-1. The processes gamma gamma -> Lambda Anti-lambda and
gamma gamma -> Sigma0 Anti-sigma0 are identified. Their cross sections as a
function of the gamma gamma centre-of-mass energy are measured and results are
compared to predictions of the quark-diquark model.


title:
Study of the avalanche to streamer transition in the glass RPC exited by
  UV light

abstract:
  A small glass RPC filled with Ar/Isob./Freon mixture has been exposed to a UV
laser light. Avalanche and streamer regimes of discharge were reached in a
fixed region of the RPC exited by the UV. A dependence of avalanche to streamer
transition process on the laser beam intensity and on the applied high voltage
was studied. Two types of the streamer signal have been observed. Using a CCD
TV camera, pictures on multi-streamer propagation over RPC were obtained.


title: Inclusive D* Production in Two-Photon Collisions at LEP

abstract:
  Inclusive D^{*+-} production in two-photon collisions is studied with the L3
detector at LEP, using 683 pb^{-1} of data collected at centre-of-mass energies
from 183 to 208 GeV. Differential cross sections are determined as functions of
the transverse momentum and pseudorapidity of the D^{*+-} mesons in the
kinematic region 1 GeV < P_T < 12 GeV and |eta| < 1.4. The cross sections
sigma(e^+e^- -> e^+e^-D^{*+-}X) in this kinematical region is measured and the
sigma(e^+e^- -> e^+e^- cc{bar}X) cross section is derived. The measurements are
compared with next-to-leading order perturbative QCD calculations.


title:
Precision Measurement of the Proton and Deuteron Spin Structure
  Functions g2 and Asymmetries A2

abstract:
  We have measured the spin structure functions g2p and g2d and the virtual
photon asymmetries A2p and A2d over the kinematic range 0.02 < x < 0.8 and 0.7
< Q^2 < 20 GeV^2 by scattering 29.1 and 32.3 GeV longitudinally polarized
electrons from transversely polarized NH3 and 6LiD targets. Our measured g2
approximately follows the twist-2 Wandzura-Wilczek calculation. The twist-3
reduced matrix elements d2p and d2n are less than two standard deviations from
zero. The data are inconsistent with the Burkhardt-Cottingham sum rule if there
is no pathological behavior as x->0. The Efremov-Leader-Teryaev integral is
consistent with zero within our measured kinematic range. The absolute value of
A2 is significantly smaller than the sqrt[R(1+A1)/2] limit.


title: Search for a Higgs boson decaying to massive vector boson pairs at LEP

abstract:
  This dissertation presents a search for a Higgs boson decaying to massive
vector boson pairs. The search is based on data collected by the L3 experiment
at CERN during the 1999-2000 period. We present the details and results of
analyses for six of the physical channels of hZ->WWff. The combined analyses
exclude a fermiophobic Higgs decaying to massive vector boson pairs for 83.8
GeV < m_h < 104.2 GeV at a 95% confidence level with an unexcluded region
between 88.8 GeV < m_h < 89.6 GeV. Monte Carlo predictions of the analyses'
performance predict an exclusion range of 86.8 GeV < m_h <107.5 GeV. We also
present model-independent branching ratio limits for the massive vector boson
search, as well as a scan of the fermiophobic plane combining with the results
of the LEP h->gamma gamma search.


title: A Detailed Monte-Carlo Simulation for the Belle TOF System

abstract:
  We have developed a detailed Monte Carlo simulation program for the Belle TOF
system. Based on GEANT simulation, it takes account of all physics processes in
the TOF scintillation counters and readout electronics. The simulation
reproduces very well the performance of the Belle TOF system, including the
dE/dx response, the time walk effect, the time resolution, and the hit
efficiency due to beam background. In this report, we will describe the Belle
TOF simulation program in detail.


title:
Production of pizero and eta mesons at large transverse momenta in pp
  and pBe interactions at 530 and 800 GeV/c

abstract:
  We present results on the production of high transverse momentum pizero and
eta mesons in pp and pBe interactions at 530 and 800 GeV/c. The data span the
kinematic ranges: 1 < p_T < 10 GeV/c in transverse momentum and 1.5 units in
rapidity. The inclusive pizero cross sections are compared with next-to-leading
order QCD calculations and to expectations based on a phenomenological
parton-k_T model.


title:
The Future of Lepton-Nucleon Scattering, a summary of the Durham
  workshop, December 2001

abstract:
  A summary is given of the recent Durham workshop on the future of
lepton-nucleon scattering. Discussions at the workshop centred on the need to
ensure that an international scientific and technical programme is developed
with the goal of further exploring the structure of the nucleon. Questions of
particular interest include the investigation of nucleon structure and spin at
extremely small Bjorken x. The role of the Electron Ion Collider in this
programme was discussed, as was the necessity of ensuring that HERA is fully
exploited.


title: Studies of Electron Avalanche Behavior in Liquid Argon

abstract:
  Electron avalanching in liquid argon is being studied as a function of
voltage, pressure, radiation intensity, and the concentrations of certain
additives, especially xenon. The avalanches produced in an intense electric
field at the tip of a tungsten needle are initiated by ionization from a
moveable americium (241Am) gamma ray source. Photons from xenon excimers are
detected as photomultiplier signals in coincidence with the current pulse from
the needle. In pure liquid argon the avalanche behavior is erratic, but the
addition of even a small amount of xenon (>100ppm) stabilizes the performance.
Similar attempts with neon (30%) as an additive to argon have been
unsuccessful. Tests with higher energy gamma rays (57Co) yield spectra and
other performance characteristics quite similar to those using the 241Am
source. Two types of signal pulses are commonly observed: a set of pulses that
are sensitive to ambient pressure, and a set of somewhat smaller pulses that
are not pressure dependent.


title: VLHC Based ep Colliders: e-ring versus e-linac

abstract:
  Main parameters of a Linac*VLHC based ep collider are estimated and compared
with resently suggested ep collider in the VLHC tunnel.


title: Status of the Borexino experiment

abstract:
  This is a talk presented at the XXXVIIth Rencontres de Moriond, Electroweak
and Unified Theories session, March 2002. A short review of the solar neutrino
Borexino experiment is given.


title: Search for scalar quarks in e+e- collisions at sqrt(s) up to 209GeV

abstract:
  Search for Scalar Quarks in e+e- Collisions at sqrt(s) up to 209 GeV Searches
for scalar top, scalar bottom and mass-degenerate scalar quarks are performed
in the data collected by the ALEPH detector at LEP, at centre-of-mass energies
up to 209 GeV, corresponding to an integrated luminosity of 675 pb-1. No
evidence for the production of such particles is found in the decay channels
stop->c/u chi, stop->b l snu, sbottom-> b chi, squark-> q chi or in the stop
four-body decay channel stop-> b chi f f' studied for the first time at LEP.
The results of these searches yield improved mass lower limits. In particular,
an absolute lower limit of 63GeV/c2 is obtained for the stop mass, at 95%
confidence level, irrespective of stop lifetime and decay branching ratios.


title: A Strategy for Accelerator-Based Neutrino Physics in the USA

abstract:
  We outline a strategy for next-generation neutrino physics experiments based
on beams from accelerators in North America. This strategy is based on the
mounting evidence in favor of the large mixing angle solution to solar neutrino
problem, which implies that in addition to measurement of sin^2 2theta_13 and
of the sign of Delta m^2_23, measurement of CP violation in the neutrino sector
is a realizable goal if sin^2 2theta_13 is not too small.
  The strategy is to begin with a new detector, 20-30 kton of liquid argon,
designed to make best use of the NUMI beam currently under construction at
FNAL. Then, after new measurements have made the optimal path clearer, we
anticipate choosing among options for neutrino "superbeam" upgrades at BNL
and/or FNAL as well as for second new detector of 100-200 kton.


title:
Rapidity-Alignment and p_T Compensation of Particle Pairs in Hadronic Z0
  Decays

abstract:
  Observation is made of rapidity-alignment of K+K- and ppbar pairs which
results from their asymmetric orientation in rapidity, with respect to the
direction from primary quark to antiquark. The K+K- and ppbar data are
consistent with predictions from the fragmentation string model. However, the
ppbar data strongly disagree with the conventional implementation of the
cluster model. The non-perturbative process of `gluon splitting to diquarks'
has to be incorporated into the cluster model for it to agree with the data.
Local conservation of p_T between particles nearby in rapidity (i.e., p_T
compensation) is analysed with respect to the thrust direction for pi+pi-,
K+K-, and ppbar pairs. In this case, the string model provides fair agreement
with the data. The cluster model is incompatible with the data for all three
particle pairs. The model with its central premiss of isotropically-decaying
clusters predicts a p_T correlation not seen in the data.


title: Plasma Lens Backgrounds at a Future Linear Collider

abstract:
  A 'plasma lens' might be used to enhance the luminosity of future linear
colliders. However, its utility for this purpose depends largely on the
potential backgrounds that may be induced by the insertion of such a device in
the interaction region of the detector. In this note we identify different
sources of such backgrounds, calculate their event rates from the elementary
interaction processes, and evaluate their effects on the major parts of a
hypothetical Next Linear Collider (NLC) detector. For plasma lens parameters
which give a factor of seven enhancement of the luminosity, and using the NLC
design for beam parameters as a reference, we find that the background yields
are fairly high, and require further study and improvements in detector
technology to avoid their impact.


title:
Search for mSUGRA in single-electron events with jets and large missing
  transverse energy in ppbar collisions at center of mass energy of 1.8 TeV

abstract:
  We describe a search for evidence of minimal supergravity (mSUGRA) in 92.7
pb^(-1) of data collected with the D{\O}detector at the Fermilab Tevatron ppbar
collider at center of mass energy of 1.8 TeV. Events with a single electron,
four or more jets, and large missing transverse energy were used in this
search. The major backgrounds are from W+jets, misidentified multijet, ttbar,
and WW production. We observe no excess above the expected number of background
events in our data. A new limit in terms of mSUGRA model parameters is
obtained.


title: CLEO-c and CESR-c: A New Frontier of Electroweak and QCD Physics

abstract:
  The new proposed experiment CLEO-c in the Wilson Laboratory will explore the
physics potential of the CLEO detector and the CESR storage ring operation in
the center-of-mass energy range 3 - 5 GeV. The Physics program of CLEO-c can be
divided in two parts: weak interaction physics and QCD physics. The electroweak
program presented at the XXXVIIth Rencontres de Moriond is discussed


title: Study of Rapidity Gap Events in Hadronic Z Decays with the L3 Detector

abstract:
  A search is performed in symmetric 3-jet hadronic Z decay events for evidence
of colour singlet exchange and for colour reconnection effects predicted by the
Rathsman model. Asymmetries in particle flow and the angular separation of
particles are found to be sensitive to such effects.
  95% upper limits of 7-9% are found for the fraction of colour singlet
exchange, and of 0.93% for the colour reconnection parameter $R_0$ (default
value 0.1) of the Rathsman model.


title:
A review of the CMS discovery potential for MSSM SUSY massive Higgses A
  and H

abstract:
  The present understanding of the expected MSSM SUSY heavy neutral $A^0$ and
$H^0$ Higgs reach at CMS is reviewed. Two Higgs decay channels are considered
in this talk: $A,H$ $\to$ $\tau \tau$ and $A,H$ $\to$ $\chi_2^0 \chi_2^0$.
Under the assumption that neutralinos and sleptons are not too heavy, the
channel $A,H$ $\to$ $\chi_2^0 \chi_2^0$ provides an interesting and
complementary channel to the $\tau \tau$ channel. The expected reach in the
MSSM parameter space for both channels as well as their discovery potential at
the CMS detector will be presented.


title: Start-up of the nemo3 experiment

abstract:
  The NEMO collaboration is looking to measure neutrinoless double beta decay
down to a lower limit of 0.1 eV for the effective neutrino mass. The NEMO 3
detector is now operating in the Frejus Underground Laboratory. The expected
performance and the data of the first runs are presented here.


title: Hadronic B decays at BABAR

abstract:
  We present preliminary results on hadronic decays of B mesons, based on data
recorded at the Upsilon(4S) resonance with the BABAR detector at the PEP-II
B-factory at SLAC. We measure branching fractions of many B decay modes,
including decays to J/psi phi K, J/psi pi^+ pi^- and eta_c K final states. We
report the observation of the decay B --> D_s pi^- and the first measurement of
the flavor-tagged D meson production in B^0 decays. Since their preliminary
nature, the results presented in this paper are based on different data
samples.


title: A Measurement of the K_S Lifetime

abstract:
  A measurement of the K_S lifetime is presented using data recorded by the
NA48 experiment at the CERN-SPS during 1998 and 1999. The K_S lifetime is
derived from the ratio of decay time distributions in simultaneous, collinear
K_S and K_L beams, giving a result which is approximately independent of the
detector acceptance and with reduced systematic errors. The result obtained is
tau_S=(0.89598 +- 0.00048 +- 0.00051)x10^(-10) s, where the first error is
statistical and the second systematic.


title: Cosmic multi-muon bundles measured at DELPHI

abstract:
  The DELPHI detector at LEP, located 100 $m$ underground, has been used to
detect the multi-muon bundles by cathode readout of its hadron calorimeter and
its tracking detectors (TPC, muon chambers). The experimental apparatus allows
us to study muon bundles originating from primary cosmic particles with
energies in the interval $10^{14}$ - $10^{17} eV$.
  The cosmic events registered during the years 1999 and 2000 correspond
roughly to $1.6 10^6 s$ of effective run time.
  The aim of the work is to compare the measured muon multiplicity
distributions and predictions of high energy interaction models for different
types of primary particles and also to determine the absolute flux of events in
certain muon multiplicity range. The presentation describes the current status
of the analysis.


title: Precise measurement of the decay ${K_{L}\to\pi^0\gamma\gamma}$

abstract:
  The decay rate of $\klpgg$ has been measured with the NA48 detector at the
CERN SPS. A total of 2558 $\klpgg$ candidates have been observed with a
residual background of 3.2%. The branching ratio is determined to be $(1.36
\pm0.03_{(stat)} \pm0.03_{(syst)}\pm 0.03_{(norm)})\times10^{-6}$ and the
vector coupling constant $a_v = -0.46 \pm0.03_{(stat)} \pm0.04_{(syst)}$. This
result suggests that the CP-violation effects are dominating in the $\klpee$
decay. An upper limit for the $\klpgg$ decay rate in the two photon mass region
$m_{\gamma\gamma}<m_{\pi^0}$ is also given.


title: Measurement of Light-Cone Wave Functions by Diffractive Dissociation

abstract:
  Diffractive dissociation of particles can be used to study their light-cone
wave functions. Results from Fermilab experiment E791 for diffractive
dissociation of 500 GeV/c pi- mesons into di-jets show that the |q qbar>
light-cone asymptotic wave function describes the data well for Q^2 ~ 10
(GeV/c)^2 or more.


title: b-Hadron Physics at LEP

abstract:
  A personal overview of the current status of physics results from LEP using
b-hadrons is presented. Emphasis is placed on those areas where analyses are
not yet finalised and there remains significant activity. Results are presented
in the areas of b-quark fragmentation, b-hadron lifetimes, charm counting in
b-decays and Vcb.


title: Jet Physics at the Tevatron

abstract:
  Recent analyses by the CDF and D0 Collaborations of jet data produced in
proton-antiproton collisions at the Fermilab Tevatron Collider are presented.
These include new studies of the inclusive jet production cross section, a
measurement of the strong coupling constant, the first measurement of subjet
multiplicity of quark and gluon jets, examination of ratios of multijet cross
sections and their implications for choice of renormalization scale, and a
study of charged jet evolution and energy flow in the underlying event. The
results are compared to theoretical predictions.


title:
Determinations of alpha_S at sqrt{s}= 14 to 44 GeV using Resummed
  Calculations

abstract:
  The strong coupling constant alpha_S is determined using recently re-analysed
e+e- annihilation data collected by the JADE experiment at sqrt{s}= 14 to 44
GeV. The measurements are based on O(alpha_S**2)+NLLA predictions for various
event shape observables. The calculations are found to describe reliably data
at the lowest energies of the e+e- continuum where non-perturbative
contributions become important. The results for alpha_S are in good agreement
with the QCD expectation for the running of the strong coupling constant. This
is the first determination of alpha_S at sqrt{s}= 14 and 22 GeV based on
resummed QCD predictions.


title: Recent Results from CLEO

abstract:
  Between 1990 and 2001, the CLEO II/II.V/III detectors at the Cornell Electron
Storage Ring (CESR) have recorded over of 34 million B decays and nearly 60
million charm decays. A selection of the latest results in the electroweak
sector from these data sets has been presented. The focus is placed on the
determination of the CKM matrix elements Vub, and Vcb, and how the measurement
of the b to s gamma photon spectrum can be used to reduce theoretical
uncertainties.


title:
ATLAS Sensitivity to the Flavour-Changing Neutral Current Decay $t \to
  Zq$

abstract:
  The sensitivity of the ATLAS experiment to the top-quark rare decay via
flavor-changing neutral currents $t \rightarrow Zq$ ($q$ represents $c$ and $u$
quarks) has been studied at $\sqrt{s}$=14 TeV in two decay modes:
  1.The pure leptonic decay of gauge bosons: $t\bar{t} \rightarrow ZqWb
\rightarrow l^{+} l^{-} j l^{\pm} \nu b$ , (l=e, $\mu$).
  2.The leptonic decay of Z bosons and hadronic decay of W bosons: $t\bar{t}
\rightarrow ZqWb \rightarrow l^{+} l^{-} jjjb$ , (l=e, $\mu$).
  The dominant backgrounds $Z+jets$, $WZ$ and $t\bar{t}$ have been analysed.
The signal and backgrounds were generated via PYTHIA 5.7, and simulated and
analysed using ATLFAST 2.14. A branching ratio for $t \rightarrow Zq$ as low as
2.0x10$^{-4}$ for the leptonic mode and 5.9x10$^{-4}$ for hadronic mode could
be discovered at the 5$\sigma$ level with an integrated luminosity of 100
fb$^{-1}$.


title: Jet Physics and Event Shape Studies at HERA

abstract:
  A review is given of the latest results on jet production and studies of
event shape variables in deep inelastic scattering at HERA. Jet cross sections
studies for inclusive jet and dijet events are presented and compared to
next-to-leading order QCD calculations. Extraction of the strong coupling
constant alpha_s is discussed.


title: Recent CDF and DO Run I Results

abstract:
  We summarize some of the the most recent CDF and DO results from the
1992-1995 collider run at the Fermilab Tevatron. These include a detailed
examination of the heavy flavor content of W+jet data made by CDF.We found in
this study that the rate and the kinematic properties of the event subsample,
featuring soft lepton and secondary vertex in the same jet, are statistically
difficult to accommodate with the Standard Model simulation. CDF has also
searched for new physics in events with a photon, a lepton and missing
transverse energy. Finally, the results of the two collaborations in their
search for the first, second and third generations leptoquarks are presented.


title: ttbar production cross section in ppbar collisions at sqrt{s} = 1.8 TeV

abstract:
  Results are presented on a measurement of the ttbar pair production cross
section in ppbar collisions at sqrt{s} = 1.8 TeV from nine independent decay
channels. The data were collected by the Dzero experiment during the 1992-1996
run of the Fermilab Tevatron Collider. A total of 80 candidate events are
observed with an expected background of 38.8 +- 3.3 events. For a top quark
mass of 172.1 GeV/c^2, the measured cross section is 5.69 +- 1.21 (stat) +-
1.04 (sys) pb.


title: Improved Measurement of CP Asymmetry in the Neutral B Meson System

abstract:
  We present an improved measurement of the standard model CP violation
parameter sin2phi1 (also known as sin2beta) based on a sample of 45x10^6 BBbar
pairs collected at the Upsilon(4S) resonance with the Belle detector at the
KEKB asymmetric-energy e+e- collider. One neutral B meson is reconstructed in
the J/psiKS, Psi(2S)KS, chi_c1KS, eta_cKS, J/psiK^*0, or J/psiKL CP-eigenstate
decay channel and the flavor of accompanying B meson is identified from its
decay products. From the asymmetry in the distribution of the time intervals
between the two B meson decay points, we obtain sin2phi1 = 0.82 +/- 0.12(stat)
+/- 0.05(syst). The result is preliminary.


title:
Measurements of Branching Fractions and Decay Amplitudes in B-> J/\psi
  K^* decays

abstract:
  The branching fractions and the decay amplitudes of B -> J/psi K^* decays are
measured in a 29.4/fb data sample collected with the Belle detector at the KEKB
electron-positron collider. The decay amplitudes of helicity states of the
J/psi K^* system are determined from the full angular distribution of the final
state particles in the transversity basis. The branching fractions are measured
to be (1.29\pm0.05\pm0.13) \times 10^{-3} for neutral mesons and
(1.28\pm0.07\pm0.14) \times 10^{-3} for charged mesons. The measured
longitudinal and transverse (perpendicular to the transversity plane)
amplitudes are |A_0|^2 = 0.62\pm0.02\pm0.03 and |A_{\perp}|^2 =
0.19\pm0.02\pm0.03, respectively. The value of |A_{\perp}|^2 shows that the CP
even component dominates in the B^0 \to J/\psi K^{*0}(K_S\pi^0) decay.


title: Particle Correlations in Z and WW Events

abstract:
  Important information about the dynamics of hadron production can be obtained
by the study of particle correlations. More than 16 million hadronic Z0 decays
and several thousand W+W- events have been recorded from the four LEP
collaborations between 1989 and 2000. Recently, in Z0 decays, new results of
Bose-Einstein correlations in pairs of pions and Fermi-Dirac correlations for
antiproton pairs were reported. In fully-hadronic W+W- decays particle
correlations were used to study whether the two W bosons decay independently.


title: The Underlying Event in Hadron-Hadron Collisions

abstract:
  We measured the ambient energy in jet events using data of the CDF experiment
at center-of-mass energies of 1800 and 630 GeV by examining the transverse
momentum of charged particles in a region of the detector far away from the two
most energetic jets in the event. The energy is compared to that found in
minimum bias events. CDF data are compared to Monte Carlo predictions: neither
Herwig nor Pythia can reproduce the data in detail.


title: Measurement of Boson Self Couplings at LEP and Search for Anomalies

abstract:
  With center of mass energies up to 209 GeV of LEP II, massive W and Z bosons
can be produced in pairs and jointly with photons. This allows to study
boson-boson couplings. Since the W and Z bosons are unstable and decay into
fermions, two- and four-fermion final states, accompanied possibly by photons,
play an important role for these measurements. The couplings of the W to other
bosons have been measured to be g1Z = 0.990+0.023-0.024, kappa_gamma =
0.896+0.058-0.056, and lambda_gamma = -0.023 +0.025 -0.023. They are in
agreement with the Standard Model expectation of g1Z = 1, kappa_gamma = 1, and
lambda_gamma = 0. No sign for couplings of three neutral bosons, parametrized
by the couplings f_i^V and h_i^V, and for anomalous couplings of four gauge
bosons, parametrized by a_0, a_n and a_c has been found.


title: Radiative B Meson Decays into K pi gamma and K pi pi gamma Final States

abstract:
  We report observations of radiative B meson decays into the K+pi-gamma and
K+pi-pi+gamma final states. In the B0 -> K+pi-gamma channel, we present
evidence for decays via an intermediate tensor meson state with a branching
fraction of B(B0 -> K2*(1430)0gamma) = (1.3 +-0.5 (stat.) +- 0.1 (syst.)) X
10^{-5}. We measure the branching fraction B(B+ -> K+pi-pi+gamma)
  = (2.4 +- 0.5 (stat.) +0.4-0.2 (syst.)) X 10^{-5}, in which the B+ ->
K*0pi+gamma and B+ -> K+rho0gamma channels dominate. The analysis is based on a
dataset of 29.4 /fb recorded by the Belle experiment at the KEKB collider.


title: Prompt Photons and Deeply Virtual Compton Scattering at Hera

abstract:
  Two results in ep physics using HERA data are discussed: a measurement of the
effective transverse parton momentum in the proton by studying the production
of prompt-photons in photoproduction events in the ZEUS collaboration and
differential cross sections for Deeply Virtual Compton Scattering obtained by
both the H1 and ZEUS collaborations.


title:
Measurement of the Dalitz plot slope parameters for K- -> pi0 pi0 pi-
  decay using ISTRA+ detector

abstract:
  The Dalitz plot slope parameters g, h and k for the K- -> pi0 pi0 pi- decay
have been measured using in-flight decays detected with the ISTRA+ setup
operating in the 25 GeV negative secondary beam of the U-70 PS. About 252 K
events with four-momenta measured for the pi- and four involved photons were
used for the analysis. The values obtained g=0.627+/-0.004(stat)+/-0.010(syst),
h=0.046+/-0.004(stat)+/-0.012(syst), k=0.001+/-0.001(stat)+/-0.002(syst) are
consistent with the world averages dominated by K+ data, but have significantly
smaller errors.


title: Status of ICARUS

abstract:
  The ICARUS detector is a liquid argon time projection chamber. It provides
three dimensional imaging and calorimetry of ionizing particles over a large
volume, with high granularity. Its Physics program includes the study of
atmospheric, solar, supernovae and beam neutrinos as well as proton decay
searches. The ICARUS technology has reached maturity with the construction and
test (during summer 2001) of a 600 ton detector, demonstrating the feasibility
of building large mass devices relevant for non-accelerator physics. During
this test run, more than 27000 cosmic ray events have been acquired. These data
allow to assess the detector performance, i.e. the spatial reconstruction,
calorimetry and particle identification.


title: Kaon Physics at BNL

abstract:
  The rare kaon decay program at BNL is summarized. A brief review of recent
results is provided along with a discussion of prospects for the future of this
program. The primary focus is the two golden modes: k+->pnn and kl->pnn. The
first step in an ambitious plan to precisely measure both branching ratios has
been successfully completed with the observation of two k+->pnn events by E787.
The E949 experiment is poised to reach an order of magnitude further in
sensitivity and to observe ~10 Standard Model events.


title:
Prospects for Diffractive Physics with the CDF Forward Detectors at the
  Tevatron

abstract:
  The Forward Detector upgrade project at CDF is designed to enhance the
capabilities for studies of diffractive physics at the Tevatron during Run II.
Studies of hard diffraction and very forward physics are some of the topics
that can be addressed in the next few years at the Tevatron. The program for
diffractive physics, including the detectors and their commissioning, is
discussed here. All the detectors have been installed and are presently
collecting data.


title: Measurement of Rare Kaon Decay K^+ -> PI^+NUNU-BAR

abstract:
  A decade long search for the rare kaon decay to pi^+nunu-bar has been pursued
by E787. Two signal events are observed, giving a measurement of the branching
ratio Br(K^+ -> PI^+NUNU-BAR)=1.57^+1.75_-0.82 x 10^-10 and a constraint on the
Cabibbo-Kobayashi-Maskawa (CKM) matrix element 0.007<|Vtd|<0.030 (68% C.L.).


title: |Vcb| and |Vub| measurements at Belle

abstract:
  In this paper, we report on the results of the |Vcb| and |Vub| measurements
obtained from studies of inclusive and exclusive semileptonic decays using
30fb^-1 of e^+e^- collision data collected by the Belle detector at KEKB.


title: Rare B Decays at Belle

abstract:
  Results on a number of rare hadronic B decays are presented. A data sample of
$29.1 {\rm fb}^{-1}$ accumulated using the Belle detector at the KEKB
asymmetric $e^+e^-$ collider operating at the $\Upsilon(4S)$ resonance is used.


title: Dispersion in optical fibers and timing for particle identification

abstract:
  In the framework of the TOF Wall laser calibration system of the HARP
experiment, a study of time dispersion properties of mono-mode and multi-mode
optical fibers in the green band (532 nm) has been carried out. Dispersion less
than 4 ps/m has been obtained with $\approx$10 $\mu$m core diameter fibers.


title: Exclusive Channels in Photon-Photon Collisions at LEP

abstract:
  The study of exclusive channels in photon-photon collisions at e+e- colliders
allows to investigate the structure and the properties of hadrons in a very
clean experimental environment. A concise review of the most recent results
obtained at LEP is presented.


title:
Possible reduction of the total uncertainty on the W boson mass measured
  at LEP2

abstract:
  An alternative W mass estimator in e+e- -> WW -> qqqq events at LEP2 is
designed to optimize the balance between the statistical uncertainty and the
systematic uncertainty due to a possible Colour Reconnection effect. The
preliminary result for the total uncertainty on the W mass in this channel is
roughly 30 % lower then those obtained with the standard estimators, based on
the SKI implementation of Colour Reconnection. Also an indirect measurement of
the SKI Colour Reconnection model parameter kappa is inferred from the
difference between both W mass estimators.


title:
A Study of Inclusive Double-Pomeron-Exchange in p pbar -> p X pbar at
  root s = 630 GeV

abstract:
  We report measurements of the inclusive reaction, p pbar -> p X pbar, in
events where either or both the beam-like final-state baryons were detected in
Roman-pot spectrometers and the central system was detected in the UA2
calorimeter. A Double-Pomeron-Exchange (DPE) analysis of these data and single
diffractive data from the same experiment demonstrates that, for central masses
of a few GeV, the extracted Pomeron-Pomeron total cross section exhibits an
enhancement which exceeds factorization expectations by an order-of-magnitude.
This may be a signature for glueball production. The enhancement is shown to be
independent of uncertainties connected with possible non-universality of the
Pomeron flux factor. Based on our analysis, we present DPE cross section
predictions, for unit (1 mb) Pomeron-Pomeron total cross section, at the
Tevatron, LHC and the 920 GeV fixed-target experiment, HERA-B.


title:
Complementary Observables for the Determination of |Vub| in Inclusive
  Semileptonic B Decays

abstract:
  The determination of |Vub| from inclusive semileptonic B decays is limited by
uncertainties in modelling the decay distributions in b->ulnu transitions. The
largest uncertainties arise from the limited knowledge of the appropriate b
quark mass and Fermi momentum to use in the parameterization of the shape
function. This paper presents a new method in which these shape function
parameters are constrained by the same data used to measure |Vub|. The method
requires measurements of the momenta of both the charged lepton and the
neutrino in semileptonic B decays. From these quantities two complementary
observables can be constructed, one for discriminating between b->ulnu
transitions and background and the other for constraining the shape function.
Using this technique the uncertainties in |Vub| from the shape function may be
significantly reduced.


title: D0 status and first results from Run 2

abstract:
  In order to fully exploit the physics potential of the Tevatron Run 2, the D0
detector has been upgraded. Having nearly completed the commissioning phase,
the D0 detector is starting to produce its first physics results. An overview
of the status of the main subdetectors involved in the upgrade is given,
followed by some examples of preliminary physics results already emerging.


title:
Neutrino Oscillation Experiments for Precise Measurements of Oscillation
  Parameters and Search for numu->nue Appearance and CP Violation

abstract:
  The possibility of making a low cost, very intense high energy proton source
at the Brookhaven Alternating Gradient Synchrotron (AGS) along with the
forthcoming new large underground detectors at either the National Underground
Science Laboratory (NUSL) in Homestake, South Dakota or at the Waste Isolation
Pilot Plant (WIPP) in Carlsbad, New Mexico, allows us to propose a program of
experiments that will address fundamental aspects of neutrino oscillations and
CP-invariance violation. This program of experiments is unique because of the
extra-long baseline of more than 2500 km from Brookhaven National Laboratory to
the underground laboratories in the West, the high intensity of the proposed
conventional neutrino beam, and the possibility of constructing a very large
array of water Cerenkov detectors with total mass approaching 1 Megaton. As
part of this program we also consider experiments at moderately long baselines
(~400 km) using other detector technologies that can yield valuable and
complementary information on neutrino oscillations. This letter of intent
focuses on the design and construction of the necessary AGS upgrades and the
new neutrino beam which will initially have a proton beam of power ~0.5 MW; the
power will then be upgraded to ~1.3 MW in a later phase.


title: An Update on Progress at KamLAND

abstract:
  The first generation of solar neutrino experiments narrowed the allowed
flavor mixing and mass parameter solutions (for nu_e <-> nu_x) to a few
isolated regions of sin^2*2*theta - delta M^2 parameter space. Recently, the
Small Mixing Angle (SMA) solution, and the ``just so'' solutions have been
disfavored by results from Super-Kamiokande and SNO. The Kamioka Liquid
scintillator Anti-Neutrino Detector (KamLAND) recently became operational, and
is particularly sensitive to the Large Mixing Angle (LMA) region. We believe
the background impurity levels in the detector are low enough to conduct a
successful experiment. The stability of the central balloon and PMTs has also
been confirmed.


title: Strange Particle Production in Nuclear Collisions at CERN-NA49

abstract:
  In order to quantify isospin effects in the comparison of elementary to
nuclear collisions, p-p and n-p interactions have been studied in the NA49
experiment in addition to p-Pb and Pb-Pb reactions. Together with first
measurements of cascade hyperon and Omega production in p-p collisions,
isospin-corrected K/pi ratios and cascade yields are discussed. The
Antiomega/Omega ratio in p-p collisions is found to be less than 0.5 with 95%
confidence level.


title: Long Baseline Neutrino Oscillation Review

abstract:
  This article will summarise the status of current and future long baseline
neutrino oscillation experiments.


title: QCD and Diffraction at HERA

abstract:
  Recent measurement of inclusive processes and hadronic final states in
diffractive deep-inelastic scattering at HERA are used to investigate the QCD
factorisation properties and study partonic structure of colour singlet
exchange. Resolved Pomeron and colour dipole models are tested by comparison
with the data.


title:
Measurements of Lifetimes, Mixing and CP Violation of B Mesons with the
  BaBar Detector

abstract:
  Using a data sample of 62 million \FourS\to B\Bbar decays collected between
1999 and 2001 by the BaBar detector at the PEP2 asymmetric-energy B Factory at
SLAC we study events in which one neutral B meson is fully reconstructed in a
final state containing a charmonium meson and the flavour of the other neutral
B meson is determined from its decay products. The amplitude of the
CP-violating asymmetry, which in the Standard Model is proportional to sin(2
beta), is derived from the decay time distributions. We measure sin(2 beta) =
0.75 \pm 0.09 (stat) \pm 0.04 (syst) and |\lambda| = 0.92 \pm 0.06 (stat) \pm
0.02 (syst). The latter is consistent with the Standard Model expectation of no
direct CP violation. These results are preliminary. In addition, we report on
precision measurements of the B lifetimes, and the \Bz-\Bzb oscillation
frequency \deltamd.


title: Measurement of Hadronic Cross Section at Kloe

abstract:
  In the fixed energy environment of the $e^{+}e^{-}$ collider DA$\Phi$NE, KLOE
can measure the cross section of the process $e^{+}e^{-} \to hadrons$ as a
function of the hadronic system energy using the radiative return method. At
energies below 1 GeV, $e^{+}e^{-} \to \rho \to \pi^{+}\pi^{-}$ is the
dominating hadronic process. We report here on the status of the analysis of
the process $e^{+}e^{-} \to \pi^{+}\pi^{-}\gamma$. Some preliminary results on
the invariant mass spectrum of the two pion system, obtained from the analysis
of 22.6 pb$^{-1}$, are presented.


title: Heavy Flavours at LEP

abstract:
  This paper describes recent developments in Heavy Flavour physics at LEP,
focusing on a new result from the ALEPH Collaboration on the search for flavour
oscillations of the Bs meson. The impact of this analysis on the world
combination and the resulting limit on the Bs oscillation frequency are
discussed.


title: Search for Hidden Dimensions in Run I Tevatron Data

abstract:
  We describe the results of four new searches based on data samples from the
1992 - 1996 proton-antiproton 1.8 TeV Collider run at Fermilab. DZERO has
searched for resonant slepton production in the two muon plus two jet channel.
Using the R-parity violating mSUGRA model, smuon and smuon neutrino masses up
to 280 GeV/c2 are excluded. CDF has searched for R-parity violating scalar top
quark decays in two tau plus two jet events and set a mass limit of 119 GeV/c2.
DZERO has searched for evidence of large extra dimensions in monojet
production. Limits are set on M_D the fundamental mass scale, of 0.68 and 0.63
TeV for n = 4 and n = 6 extra dimensions. CDF has interpreted a search for new
physics in photon + missing energy events as a search for a gravitino and
alternatively as a search for effects of graviton production. A gravitino mass
limit of 1.17*10**(-5) eV is set. Limits on M_D of 0.55, 0.58, and 0.60 TeV for
n = 4, 6, and 8 are also determined.


title: First data from Dzero in Run 2

abstract:
  Run 2 of the Tevatron collider at Fermilab has begun in the spring of 2001.
During its first year of operation the Tevatron has delivered a luminosity of
approximately 30/pb to the Dzero experiment. These data have been used to
commission the detector. The progress in understanding the detector performance
and the prospects for an exciting physics program to be carried out in the next
years are the subject of this review.


title: Heavy Flavors Results From SLD

abstract:
  We present recent measurements by SLD of the branching fractions of B hadrons
to states with 0 and 2 open charm hadrons, BR_{0D} and BR_{2D}, from which both
the average charm yield per B decay, N_c and the inclusive branching ratio into
rare modes not containing any charmed hadrons, BR_{rare} can be derived. We
also present a new measurement of the B_d mixing frequency Delta m_d and limits
on the B_s mixing frequency Delta m_s. These analyses take advantage of the
excellent vertexing resolution of the VXD3, a pixel-based CCD vertex detector,
which enables the topological separation of the B and cascade D decay vertices.


title: Penguin-mediated B Decays at Belle

abstract:
  We report on the results of penguin-mediated B decays at the Belle
experiment. The analyses were based on approximately 32 million $B\bar{B}$
events collected at the $\Upsilon(4S)$ resonance with the Belle detector at the
KEKB $e^+e^-$ storage ring. The $b \to s \gamma$ transition was studied through
exclusive decays: $B \to K^{*} \gamma$, $B^0 \to K_{2}^{*}(1430)^0 \gamma$,
$B^+ \to K^+\pi^-\pi^- \gamma$, $B^+ \to K^{*0} \pi^+ \gamma$ and $B^+ \to
K^+\rho^0 \gamma$. The $b \to s \ell^+ \ell^-$ transition was searched through
both exclusive decays, $B \to K^{(*)} \ell^+ \ell^-$, and inclusive decay, $B
\to X_{s} \ell^+ \ell^-$. We observed the decay processes $B^+ \to
K^+\pi^+\pi^- \gamma$ and $B \to K \ell^+ \ell^-$ for the first time.


title: Charm and beauty production at HERA

abstract:
  A selection of topics on open heavy quark production at HERA are reviewed
here. Measurements of charm fragmentation parameters will be presented together
with developments in the study of D* di-jet angular distributions. Charm
production in deep inelastic scattering (DIS) is also discussed. Finally we
deal with recent measurements of b cross sections using impact parameters in
both DIS and photoproduction regimes.


title: Search of AMSB with the DELPHI data

abstract:
  The data collected by the DELPHI experiment up to the highest LEP2 energies
were used to put constraints on the Anomaly Mediated SUSY Breaking model with a
flavour independent m0 parameter. The experimental searches covered several
possible signatures experimentally accessible at LEP, with either the lightest
neutralino, the sneutrino or the stau being the LSP. They included the search
for nearly mass degenerate chargino and neutralino (always present in AMSB),
the search for Standard Model like or invisible Higgs boson, the search for
stable staus, and the search for cascade decays resulting in the LSP
(neutralino or sneutrino) and a low multiplicity final state containing
neutrinos.


title: Vector Mesons and pQCD at HERA

abstract:
  An overview of recent results from the H1 and ZEUS collaborations on vector
meson production in electron-proton collisions at HERA is given. For
diffractive vector meson production the energy dependence is discussed. The
dependences on different scales, M_VM, Q^2 and |t|, are investigated. The data
are compared to pQCD theoretical calculations. In addition new results on
inelastic J/Psi electroproduction in a kinematical range 2<Q^2<100 GeV^2 and
50<W<225 GeV are shown. Differential cross sections are compared to theoretical
predictions for color singlet and color octet contributions as well as to
calculations for color singlet contributions alone.


title:
A flavour-independent Higgs boson search in e+e- collisions at sqrt(s)
  up to 209GeV

abstract:
  A search for the Higgsstrahlung process ${\rm e}^+{\rm e}^- \to {\rm HZ}$ is
carried out, covering decays of the Higgs boson into any quark pair, a gluon
pair or a tau pair. The analysis is based on the $630 {\rm pb}^{-1}$ of data
collected by the ALEPH detector at LEP at centre-of-mass energies from 189 to
209 GeV. A 95% C.L. lower mass limit of 109.1\mc2 is obtained for a Higgs boson
cross section equal to that expected from the Standard Model if the Higgs boson
decays exclusively into hadrons and/or taus, irrespective of the relative
branching fractions.


title: Rare B Decays at BaBar

abstract:
  We report recent results in the search for the rare B meson decays B-->rho
gamma and B0-->pi0 pi0. These results are based on 56.4 1/fb collected by the
BaBar Collaboration at the SLAC PEP-II e+e- B Factory. We set new 90%
confidence level upper limits BR(B0 --> rho0 gamma) < 1.5 x 10^-6, BR(B+ -->
rho+ gamma) < 2.8 x 10^-6, and BR(B0 --> pi0 pi0) < 3.4 x 10^-6.


title:
Limits on Extra Dimensions and New Particle Production in the Exclusive
  Photon and Missing Energy Signature in p pbar Collisions at sqrt(s) = 1.8 TeV

abstract:
  The exclusive gamma-met signal has a small standard model cross-section and
is thus a good channel in which to look for signs of new physics. This
signature is predicted by models with a superlight gravitino or with large
extra spatial dimensions. We search for such signals at the CDF detector at the
Tevatron, using 87 pb^-1 of data at sqrt(s) = 1.8 TeV, and extract 95% C.L.
limits on these processes. A limit of 221 GeV is set on the scale |F|^{1/2} in
supersymmetry models. For 4, 6, and 8 extra dimensions, limits on the
fundamental mass scale M_D of 549, 581, and 602 GeV, respectively, are found.
We also specify a `pseudo-model-independent' method of comparing the results to
theoretical predictions.


title: KLOE recent results

abstract:
  Since april 1999, the KLOE experiment at DAFNE has collected about 200
inverse pb of data, produced in electron-positron collision at the c.m. energy
of 1020 MeV, the mass of the phi meson. These data have been used for detailed
studies on the phi radiative decays, as well as on rare K short decays. The
first results, based on the 20 inverse pb collected in year 2000 are presented
here


title:
W Mass and its Uncertainty from Modelling the Hadronic Final State at
  LEP

abstract:
  From 1996 up to 2000 the LEP collider at CERN has operated at center of mass
energies above the production threshold for W boson pairs of approximately 160
GeV. The obtained data are used to extract a preliminary W mass value of
(80.450 +- 0.039) GeV by direct reconstruction. To a large extent the
uncertainty is due to systematic effects especially in the fully hadronic decay
channel W+W- --> qq' qq' that suffers most from ambiguities in modelling the
hadronic final state. Methods to assess and reduce these uncertainties are the
current main concern of the four LEP experiments.


title: Hard probes at heavy-ion collider energies: Results from PHENIX

abstract:
  Hard processes in nucleus-nucleus interactions at relativistic energies are
reviewed with emphasis on recent PHENIX results from the first run of the
Relativistic Heavy-Ion Collider at BNL. The observed suppression of moderately
high $p_T$ hadrons ($p_T$ = 2 - 5 GeV/c) in $\sqrt{s_{NN}}$ = 130 GeV $Au+Au$
central collisions with respect to the scaled $pp$ data, is discussed in terms
of conventional nuclear and ``quark-gluon-plasma'' effects. The meson and
baryon composition at high $p_T$, as well as the implications for open charm of
the measured single electron spectrum are also presented.


title:
Comparison of Timing Properties of Glass Multigap RPCs with 0.3 and 0.6
  mm Subgap Width

abstract:
  Timing characteristics of two multigap RPCs were compared. One had four
subgaps 0.3 mm wide and the other - two subgaps 0.6 mm wide. Specially
developed electronics was used. Electronics resolution convoluted with measured
charge spectra at operating point was estimated as about 65 ps. The best time
resolutions obtained at low counting rate were 75 ps for the 0.3 mm subgap and
about 125 ps for the 0.6 mm one, after slewing corrections. The rate capability
of the (2x0.6mm) counter was found to be considerably lower than for the
(2x(2x0.3mm)) one.


title: Rare B Decays at Belle

abstract:
  Recent results of rare B decay analyses based on 31.9 million $B\bar{B}$
collected with the Belle detector at the KEKB asymmetric $e^+e^-$ collider are
presented. We have made the first observation of charmless baryonic decay
$B^\pm \to p \bar{p} K^\pm$, the three-body $B^0 \to K^0 \pi^+ \pi^-$ and $B^0
\to K^0 K^+ K^-$. The measured branching fractions are $\mathcal{B}(B^+\to p
\bar{p} K^+) = (4.3^{+1.1}_{-0.9} \pm 0.5)\times 10^{-6}$,
$\mathcal{B}(B^0{\to}K^0\pi^+\pi^-) = (\brkspp) \times 10^{-6}$, and
${\mathcal{B}}(B^0{\to}K^0 K^+ K^-) = (\brkskk) \times 10^{-6}$. We also see
strong evidence of $B^\pm \to \eta K^\pm$ and $B^\pm \to \eta \pi^\pm$, and
observed the decay $B^\pm \to \omega K^\pm$ with $\mathcal{B}(B^\pm \to \omega
K^\pm) = (9.9^{+2.7}_{-2.4} \pm 1.0) \times 10^{-6}$. Preliminary results of
improved measurements of the branching fractions for the decays $B \to K \pi$
and $\pi \pi$ are reported. No evidence for direct CP violation is found in the
decays $B^\pm \to K^\pm \pi^\mp$, $K^\pm \pi^0$, $K^0 \pi^\pm$, $\pi^\pm
\pi^0$, and $\omega K^\pm$.


title:
Flavor Changing Kaon Decays from HyperCP: Measurements of the K+/- ->
  pi+/- mu+ mu- Branching Ratios

abstract:
  The Fermilab HyperCP collaboration is making precision studies of charged
hyperon and kaon decays, as well as searches for rare and forbidden hyperon and
kaon decays. We report here on measurements of the branching ratios of the
flavor-changing neutral-current decays: K+/- -> pi+/- mu+ mu-, and compare our
results to theoretical predictions. This is the first observation of the K- ->
pi- mu+ mu- decay.


title: Inelastic Photoproduction of J/Psi Mesons at HERA

abstract:
  An analysis of inelastic photoproduction of J/Psi mesons is presented using
data collected at the ep collider HERA corresponding to an integrated
luminosity of above 80pb-1. Differential and double differential cross sections
are measured in a wide kinematic region: 60<W_gammap<260 GeV, 1<p_t^2< 60 GeV^2
and 0.05<z<0.9, where z is the fraction of the energy of the exchanged photon
transferred to the J/Psi meson in the rest frame of the target proton. Cross
sections at z<0.3 are presented for the first time. Theoretical calculations
within the Colour Singlet Model at NLO for direct photon processes are shown to
give a good description of the data in the medium z region (0.3<z<0.9) up to
the highest p_t^2 values. A calculation using a k_t factorisation approach in
LO in the Colour Singlet Model is also able to describe these data. The data in
the full z range are also compared to LO calculations within a non-relativistic
QCD framework including color octet and colour singlet contributions for direct
and resolved photons. It seems possible to reconcile data and theory with
modest contributions from colour octet processes. The polarisation of the J/Psi
meson is measured as a function of z and p_t,psi and is reasonably described by
the theoretical predictions.


title: Inelastic Leptoproduction of J/Psi Mesons at HERA

abstract:
  The leptoproduction of J/psi mesons is studied in inelastic reactions for
four momentum transfers 2<Q^2<100GeV^2. The data were taken with the H1
detector at the electron proton collider HERA and correspond to an integrated
luminosity of 77 pb-1. Single differential and double differential cross
sections are measured with increased precision compared with previous analyses.
New leading order calculations within the non-relativistic QCD factorisation
approach including colour octet and colour singlet contributions are compared
with the data and are found to give a reasonable description of most
distributions. An exception is the shape of the distribution in the J/psi
fractional energy, z, which deviates significantly from that of the data.
Comparisons with photoproduction are made and the polarisation of the produced
J/psi meson is analysed.


title:
An improved study of the structure of e+e- -> b bbar g events and limits
  on the anomalous chromomagnetic coupling of the b-quark

abstract:
  The structure of three-jet e+e- -> b bbar g events has been studied using
hadronic Z0 decays recorded in the SLD experiment at SLAC. Three-jet final
states were selected and the CCD-based vertex detector was used to identify two
of the jets as b or bbar; the remaining jet in each event was tagged as the
gluon jet. Distributions of the gluon energy and polar angle with respect to
the electron beam were measured over the full kinematic range, and used to test
the predictions of perturbative QCD. We find that beyond-leading-order QCD
calculations are needed to reproduce the features seen in the data. The energy
distribution is sensitive to an anomalous b chromomagnetic moment kappa at the
b bbar g vertex. We measured kappa to be consistent with zero and set 95% C.L.
limits on its value, -0.06 < kappa < 0.04.


title: Charm Semileptonic Decays

abstract:
  We present two topics on charm meson semileptonic decay. Evidence for
interference in the decay K*munu and new results on the D+ to K*munu/K2pi
branching fraction.


title:
Experimental Study of rho -> pi0 pi0 gamma and omega -> pi0 pi0 gamma
  Decays

abstract:
  The e+e- -> pi0 pi0 gamma process was studied in the SND experiment at
VEPP-2M e+e- collider in the energy region 0.60-0.97 GeV. From the analysis of
the energy dependence of measured cross section the branching ratios B(omega ->
pi0 pi0 gamma)= (6.6 +1.4-0.8(stat) +-0.6(syst))x10^-5 and B(rho -> pi0 pi0
gamma)=(4.1 +1.0-0.9(stat) +-0.3(syst))x10^-5 were obtained.


title: Support Vector Machines in Analysis of Top Quark Production

abstract:
  Multivariate data analysis techniques have the potential to improve physics
analyses in many ways. The common classification problem of signal/background
discrimination is one example. The Support Vector Machine learning algorithm is
a relatively new way to solve pattern recognition problems and has several
advantages over methods such as neural networks. The SVM approach is described
and compared to a conventional analysis for the case of identifying top quark
signal events in the dilepton decay channel amidst a large number of background
events.


title: Latest Results on Kaon Physics from the NA48 Experiment

abstract:
  The NA48 experiment, conceived primarily to look for direct CP violation in
neutral kaon decays, has recently published the so far most precise
determination of the epsilon'/epsilon parameter. After reviewing shortly this
result, we report on the 2001 data-taking, which concluded the epsilon' program
by collecting a substantial amount of data with different beam intensity
conditions. We also present new precision measurements of the K0 and eta masses
and of the K-short lifetime, that provide consistency checks of our analysis.
Finally, the prospects for the future experimental program are discussed.


title: Charm Mixing and Lifetimes at Babar

abstract:
  Preliminary limits on the D^0 mixing parameter y = \Delta \Gamma / 2 \Gamma
are obtained using about 57.8 fb^-1 of data collected by BaBar in 2000 and
2001:y = (1.4 \pm 1.0 (stat.) +0.6 -0.7 (syst.))%. y is extracted, provided
that CP is conserved, by measuring separately the D^0 lifetime for the
Cabibbo-suppressed decay modes K- K+, \pi- \pi+ and the Cabibbo-favoured mode
K- \pi+. Backgrounds are suppressed by D*-tag and particle identification
requirements.


title:
Azimuthal anisotropy of K0s and Lambda prduction at mid-rapidity from
  Au+Au collisions at root s = 130 GeV

abstract:
  We report STAR results on the azimuthal anisotropy parameter v2 for strange
particles K0S, L and Lbar at midrapidity in Au+Au collisions at sNN = 130 GeV
at RHIC. The value of v2 as a function of transverse momentum of the produced
particles pt and collision centrality is presented for both particles up to pt
3.0 GeV/c. A strong pt dependence in v2 is observed up to 2.0 GeV/c. The v2
measurement is compared with hydrodynamic model calculations. The physics
implications of the pt integrated v2 magnitude as a function of particle mass
are also discussed.


title: JLC Overview

abstract:
  JLC is an e+e- linear collider designed for experiments at Sqrt(s)=500 GeV
with a luminosity of up to about 2.5x10^{34}/cm^2/s. In this talk, after
describing the parameters of JLC accelerator and detector, the feasibilities of
JLC to study Higgs, Top, and SUSY physics are presented based on the ACFA
report.


title: How well does QCD work for photon-photon collisions?

abstract:
  The performance of QCD in describing hadronic photon-photon collisions is
investigated in the light of recent measurements from LEP on di-jet production,
light hadron transverse momentum spectra, and heavy quark production.


title:
Determination of Solar Neutrino Oscillation Parameters using 1496 Days
  of Super-Kamiokande-I Data

abstract:
  A number of different fits to solar neutrino mixing and mass square
difference were performed using 1496 days of Super-Kamiokande-I's solar
neutrino data. These data select two allowed areas at large neutrino mixing
when combined with either the solar $^8$B flux prediction of the standard solar
model or the SNO interaction rate measurements. A global fit combining SK data
with the solar neutrino interaction rates measured by Homestake, SNO,
Gallex/GNO and SAGE prefers a single allowed area, the Large Mixing Angle
solution, at the 98.9% confidence level. The mass square difference $\Delta
m^2$ between the two mass eigenstates ranges from about 3 to
$19\times10^{-5}$eV$^2$, while the mixing angle $\theta$ is in the range of
$\tan^2\theta\approx$0.25--0.65.


title: Leading neutron production in $e^+p$ collisions at HERA

abstract:
  The production of neutrons carrying at least 20% of the proton beam energy
($\xl > 0.2$) in $e^+p$ collisions has been studied with the ZEUS detector at
HERA for a wide range of $Q^2$, the photon virtuality, from photoproduction to
deep inelastic scattering. The neutron-tagged cross section, $e p\to e' X n$,
is measured relative to the inclusive cross section, $e p\to e' X$, thereby
reducing the systematic uncertainties. For $\xl >$ 0.3, the rate of neutrons in
photoproduction is about half of that measured in hadroproduction, which
constitutes a clear breaking of factorisation. There is about a 20% rise in the
neutron rate between photoproduction and deep inelastic scattering, which may
be attributed to absorptive rescattering in the $\gamma p$ system. For $0.64 <
\xl < 0.82$, the rate of neutrons is almost independent of the Bjorken scaling
variable $x$ and $Q^2$. However, at lower and higher $\xl$ values, there is a
clear but weak dependence on these variables, thus demonstrating the breaking
of limiting fragmentation. The neutron-tagged structure function,
${{F}^{\rm\tiny LN(3)}_2}(x,Q^2,\xl)$, rises at low values of $x$ in a way
similar to that of the inclusive \ff of the proton. The total $\gamma \pi$
cross section and the structure function of the pion, $F^{\pi}_2(x_\pi,Q^2)$
where $x_\pi = x/(1-\xl)$, have been determined using a one-pion-exchange
model, up to uncertainties in the normalisation due to the poorly understood
pion flux. At fixed $Q^2$, $F^{\pi}_2$ has approximately the same $x$
dependence as $F_2$ of the proton.


title: Beam Based Alignment of Interaction Region Magnets

abstract:
  In conventional beam based alignment (BBA) procedures, the relative alignment
of a quadrupole to a nearby beam position monitor is determined by finding a
beam position in the quadrupole at which the closed orbit does not change when
the quadrupole field is varied. The final focus magnets of the interaction
regions (IR) of circular colliders often have some specialized properties that
make it difficult to perform conventional beam based alignment procedures. At
the HERA interaction points, for example, these properties are: (a) The
quadrupoles are quite strong and long. Therefore a thin lens approximation is
quite imprecise. (b) The effects of angular magnet offsets become significant.
(c) The possibilities to steer the beam are limited as long as the alignment is
not within specifications. (d) The beam orbit has design offsets and design
angles with respect to the axis of the low-beta quadrupoles. (e) Often
quadrupoles do not have a beam position monitor in their vicinity. Here we
present a beam based alignment procedure that determines the relative offset of
the closed orbit from a quadrupole center without requiring large orbit changes
or monitors next to the quadrupole. Taking into account the alignment angle
allows us to reduce the sensitivity to optical errors by one to two orders of
magnitude. We also show how the BBA measurements of all IR quadrupoles can be
used to determine the global position of the magnets. The sensitivity to errors
of this method is evaluated and its applicability to HERA is shown.


title:
Search for QCD Instanton-Induced Processes in Deep-Inelastic Scattering
  at HERA

abstract:
  Signals of QCD instanton-induced processes are searched for in deep-inelastic
scattering (DIS) at the electron-proton collider HERA in a kinematic region
defined by the Bjorken-scaling variables x > 10^(-3), 0.1 < y < 0.6 and photon
virtualities 10 <= Q^2 < 100GeV^2. Several observables characterising hadronic
final state properties of QCD instanton-induced events are exploited to
identify a potentially instanton-enriched domain. While an excess of events
with instanton-like topology over the expectation of the standard DIS
background is observed it can not be claimed to be significant given the
uncertainty of the simulation. Upper limits on the cross-section for
instanton-induced processes of between 60pb and 1000pb are set dependent on the
kinematic domain considered. The data do not exclude the cross-section
predicted by instanton perturbation theory for small instanton sizes. At large
instanton sizes a naive extrapolation of instanton perturbation theory yields a
cross-section in the range of sensitivity of this study. Such a cross-section
is not observed, in agreement with non-perturbative lattice simulations of the
QCD vacuum.


title: Electroweak Physics Results from NuTeV

abstract:
  NuTeV has performed precise measurements of neutral-current to
charged-current cross section ratios using intense high energy neutrino and
anti-neutrino beams on a primarily steel target at the Fermilab Tevatron. A
null hypothesis test of the standard model allows the extraction
$\sin^2\theta_W^{\nu N}(\equiv
1-M_W^2/M_Z^2)=0.2277\pm0.0013(stat)\pm0.0009(syst)$, a value that differs from
predictions of global electroweak fits by $+3.0\sigma$.


title: A Departure from Prediction: Electroweak Physics at Nutev

abstract:
  The NuTeV experiment has performed precision measurements of the ratio of
neutral-current to charged-current cross-sections in high rate, high energy
neutrino and anti-neutrino beams on a dense, primarily steel, target. The
separate neutrino and anti-neutrino beams, high statistics, and improved
control of other experimental systematics, allow the determination of
electroweak parameters with significantly greater precision than past
neutrino-nucleon scattering experiments. Our null hypothesis test of the
standard model prediction measures
sin2thetaW=0.2277+/-0.0013(stat)+/-0.0009(syst), a value which is 3.0 standard
deviations above the prediction. We discuss possible explanations for and
implications of this discrepancy.


title:
Measurement of proton-dissociative diffractive photoproduction of vector
  mesons at large momentum transfer at HERA

abstract:
  Diffractive photoproduction of vector mesons, gamma p --> V Y, where Y is a
proton-dissociative system, has been measured in ep interactions with the ZEUS
detector at HERA using an integrated luminosity of 25 pb^-1. The differential
cross section, ds/dt, is presented for -t<12 GeV^2, where t is the square of
the four-momentum transferred to the vector meson. The data span the range in
photon-proton centre-of-mass energy, W, from 80 GeV to 120 GeV. The t
distributions are well fit by a power law, ds/dt ~ (-t)^{-n}. The slope of the
Pomeron trajectory, measured from the W dependence of the rho^0 and phi cross
sections in bins of t, is consistent with zero. The ratios ds_(gamma p --> phi
Y)/dt to ds_(gamma p --> rho^0 Y)/dt and ds_(gamma p --> J/psi Y)/dt to
ds_(gamma p --> rho^0 Y)/dt increase with increasing -t. Decay-angle analyses
for rho^0, phi and J/psi mesons have been carried out. For the rho^0 and phi
mesons, contributions from single and double helicity flip are observed. The
results are compared to expectations of theoretical models.


title:
Measurements of Branching Fractions and CP-Violating Asymmetries in B0
  --> pi+pi-, K+pi-, K+K- Decays

abstract:
  We present updated measurements of branching fractions and CP-violating
asymmetries for neutral B meson decays to two-body final states of charged
pions and kaons. The results are obtained from a data sample of about 60
million Y(4S) --> B-anti-B decays collected between 1999 and 2001 by the BABAR
detector at the PEP-II asymmetric-energy B Factory at SLAC. The sample contains
124^{+16}_{-15} pi-pi, 403+/-24 K-pi, and 0.6^{+8.0}_{-7.4} K-K candidates,
from which we measure the following quantities: BF(B0 --> pi+pi-) =
(5.4+/-0.7+/-0.4) x 10^{-6}, BF(B0 --> K+pi-) = (17.8+/-1.1+/-0.8) x 10^{-6},
BF(B0 --> K+K-) < 1.1 x 10^{-6} (90% C.L.} A_Kpi = -0.05+/-0.06+/-0.01
[-0.14,+0.05], S_pipi = -0.01+/-0.37+/-0.07 [-0.66,+0.62], C_pipi =
-0.02+/-0.29+/-0.07 [-0.54,+0.48], where the errors are statistical and
systematic, respectively, and the asymmetry limits correspond to the 90%
confidence level. These results are preliminary.


title: Observation of B0bar --> D(*)0 p pbar

abstract:
  The B meson decay modes B --> D p pbar and B --> D* p pbar have been studied
using 29.4 fb^{-1} of data collected with the Belle detector at KEKB. The B0bar
--> D0 p pbar and B0bar --> D*0 p pbar decays have been observed for the first
time with branching fractions Br(B0bar --> D0 p pbar) =(1.18\pm 0.15\pm 0.16)
10^{-4} and Br(B0bar --> D*0 p pbar) =(1.20^{+0.33}_{-0.29}\pm 0.21) 10^{-4}.
No signal has been found for the B+ --> D+ p pbar and B+ --> D*+ p pbar decay
modes, and the corresponding upper limits at 90% C.L. are presented.


title: W-pair production at LEP

abstract:
  We review here the measurements of W-pair production and W decay rates
performed by the four LEP experiments at ECM from 161 to 209 GeV, and their
relevance in support of the standard electroweak model.


title:
Correlated inclusive /\bar production in e+e- annihilations at
  sqrt(s)~10.5 GeV

abstract:
  Using a 13.7/fb sample of continuum two-jet e+e- -> qqbar events collected
with the CLEO detector, we have searched for correlations between / and /\bar
particles, specifically in cases where the opening angle between the two
particles is large and each has momentum $>$1 GeV/c. Such correlations may
indicate the presence of baryon number conservation at the primary quark level.
A previous CLEO study of /\c/\cbar correlations indicated direct, associated
production of primary charmed baryons /\c: e+e- -> ccbar -> /\c/\cbar. That
effect was not observed in Monte Carlo simulations. Our current search for
similar direct, associated production of / baryons at the primary quark level
(e+e- -> ssbar -> /\bar, e.g.) qualitatively indicates a similar effect,
although it relies on a Monte Carlo dependent subtraction of background /\bar
production (based on the default JETSET 7.4 event generator).


title: Measurement of the W Mass at LEP2

abstract:
  The mass of the W boson has been measured by the LEP collaborations from the
data recorded during the LEP2 programme at e+ e- centre of mass energies from
161 to 209 GeV, giving the result : mw = 80.450 +/- 0.039 GeV/c^2. This paper
discusses the measurements of the W Mass from direct reconstruction of the
invariant mass of the WW decay products, particular emphasis is placed on the
evaluation of systematic errors. Results on the direct measurement of the W
width are also presented.


title: Electron-Proton Scattering at High Q^2

abstract:
  The $e^{+}p$ and $e^{-}p$ scattering data recorded at HERA during the recent
years offer the possibility to study electroweak effects in $ep$ interactions
apparent at high momentum transfers, $Q^{2}$, and to reveal information on the
proton parton densities at large values of the Bjorken scaling variable x.
  From the neutral current cross section measurements, H1 and ZEUS extract the
generalized structure function $x{\cal F}_{3}$, which can be related to the
valence quark content of the proton. Individual quark densities are extracted
by a global fit to the H1 neutral and charged current $e^{+}p$ and $e^{-}p$
data. The new results show the sensitivity of high $Q^{2}$ $ep$ data to the
structure of the proton and indicate what to expect from a 1 fb$^{-1}$ data
sample to be taken by H1 and ZEUS until 2006 at the upgraded HERA collider.
Future perspectives concerning the investigation of electroweak effects and
their utilization to extract the parton content of the proton are shortly
discussed.


title: MSSM, Msugra and the LSP at LEPII

abstract:
  More than one year after the end of LEPII, many analysis activities are still
going on to translate the negative search results of the four LEP experiments
into solid limits on cross-sections and masses of SUSY particles. Many analyses
based on the MSSM and Msugra models are presented in this paper. Preliminary
results including the limit on the mass of the lightest supersymmetric particle
(LSP) within the RP conservation hypothesis are also given.


title:
Measuring The Rare Decays $K^+\to \pi^+ \nu \bar\nu$ and $K^0_L \to
  \pi^0 \nu \bar\nu$

abstract:
  In this paper I will describe the search for rare kaon decay processes
$K^+\to \pi^+ \nu \bar\nu$ and $K^0_L \to \pi^0 \nu \bar\nu$. The small decay
rate for these processes is considered a key prediction of the standard model.
We searched for the charged kaon decay $K^+\to \pi^+ \nu \bar\nu$ using kaons
decaying at rest in the E787 detector at Brookhaven National Laboratory in two
different phase space regions: Region 1 with pion momentum above 205 MeV/c (the
$K^+ \to \pi^+ \pi^0$ peak) and Region 2 with pion momentum below 205 MeV/c. We
have found 2 events in Region 1 which is known to have small background
($0.15^{+0.048}_{-0.032}$). This observation leads to a branching ratio
measurement of $(1.57^{+1.75}_{-0.82})\times 10^{-10}$. We found 1 event in
Region 2 with an expectation of $0.73\pm 0.18$ background events. The
observation from Region 2 is consistent with the branching ratio measured using
Region 1. I will also describe new efforts underway to measure both the decay
rates with much higher statistics.


title: The first polarized Proton Collisions at the STAR experiment at RHIC

abstract:
  The first run of transverse polarized protons at RHIC was recently completed
which opened a new era exploring the spin structure of the proton. A first
measurement of the single transverse spin asymmetry, $A_{N}$, for leading
$\pi_{0}$ production from transverse colliding polarized protons at
$\sqrt(s)=200 $GeV, $X_{F}>0.25$ and $p_{T}\simeq 1-4 $GeV was a focus of the
STAR collaboration during the first polarized proton run at RHIC. Two new
subcomponents have been added to the STAR experiment to carry out such a
measurement in polarized proton collisions: a forward $\pi_{0}$ detector system
at approximately $7.8 $m of the STAR interaction region to reconstruct
$\pi_{0}$ mesons from their decay products $(\pi_{0}\to \gamma\gamma)$ and a
beam-beam counter with large forward acceptance to provide a means of
beam-related background suppression and relative luminosity measurement.


title:
Measurement of high-Q2 charged current cross sections in e-p deep
  inelastic scattering at HERA

abstract:
  Cross sections for e-p charged current deep inelastic scattering have been
measured at a centre-of-mass energy of 318 GeV with an integrated luminosity of
16.4 pb-1 using the ZEUS detector at HERA. Differential cross-sections
d\sigma/dQ2, d\sigma/dx and d\sigma/dy are presented for Q2>200 GeV2. In
addition, d2\sigma/dxdQ2 was measured in the kinematic range 280 GeV2 < Q2 <
30000 GeV2 and 0.015 < x < 0.42. The predictions of the Standard Model agree
well with the measured cross sections. The mass of the W boson, determined from
a fit to d\sigma/dQ2, is MW=80.3 \pm 2.1 (stat.) \pm 1.2 (syst.) \pm 1.0 (PDF)
GeV.


title: The Start of RUN II at CDF

abstract:
  After a hiatus of almost 6 years and an extensive upgrade, Tevatron, the
world largest proton--antiproton collider, has resumed the operation for the so
called RUN II. In this paper we give a brief overview of the many new features
of the Tevatron complex and of the upgraded CDF experiment, and show the
presently achieved detector performances as well as highlights of the RUN II
physics program in the beauty and electroweak sector.


title:
Search for Neutron-Antineutron Oscillations Using Multiprong Events in
  Soudan 2

abstract:
  We have searched for neutron-antineutron oscillations using the 5.56 fiducial
kiloton-year exposure of the Soudan 2 iron tracking calorimeter. We require
candidate n-nbar occurrences to have .GE. 4 prongs (tracks and showers) and to
have kinematics compatible with nbar-N annihilation within a nucleus. We
observe five candidate events, with an estimated background from atmospheric
neutrino and cosmic ray induced events of 4.5 \pm 1.2 events. Previous
experiments with smaller exposures observed no candidates, with estimated
background rates similar to this experiment. We set a lifetime lower limit for
oscillation time in iron: T_A(Fe) > 7.2x10^{31} years. The corresponding lower
limit for oscillation of free neutrons is \tau_{n-nbar} > 1.3x10^8 seconds.


title: D*+/- Production in e-p and e+p Deep Inelastic Scattering at HERA

abstract:
  Inclusive production of D*+/- (2010) mesons in deep inelastic scattering has
been measured using e+p and e-p data obtained with the ZEUS detector at HERA
using integrated luminosities of 16.7 and 65.2 pb-1, respectively. The decay
channel D*+/- -> D0 pi+ with D0 -> K- pi+ and corresponding antiparticle decays
were used to identify D*+/- mesons. The D*+/- cross sections in e-p and e+p
interactions agree with NLO QCD predictions, although the D*+/- cross section
in e-p is slightly higher than that in e+p.


title: Search for the Standard Model Higgs boson at LEP

abstract:
  The combined results of the search for the Standard Model Higgs boson from
the four LEP experiments are given. These results are based on the full data
sample collected by ALEPH, DELPHI, L3 and OPAL at centre-of-mass energies up to
209GeV, corresponding to a total integrated luminosity of about 2.5fb-1. A
slight excess of events over the background expectation is found at the 2sigma
level, originating mainly from the ALEPH 4-jet channel. This excess is
compatible with what expected for the production of a SM Higgs boson with a
mass of 115.6GeV/c2. A combined 95% confidence level lower limit of 114.1GeV/c2
on the mass of the Standard Model Higgs boson is derived.


title: Searches for Gauge Mediated SUSY Breaking at LEP

abstract:
  Searches for neutralinos and sleptons with arbitrary lifetimes, as predicted
in the framework of the Gauge Mediated Supersymmetry Breaking (GMSB) model,
have been performed by the four LEP collaborations. No evidence for these
particles has been found in the data recorded at center-of-mass energies up to
sqrt(s)=209GeV. Therefore constraints on the production cross-sections and
particle masses as well as interpretations in the framework of the GMSB model
are presented.


title: Experimental Summary

abstract:
  An overview is presented of the experimental talks given at the XXXVIIth
Rencontres de Moriond QCD session.


title: Recent Results in Search for New Physics at the Tevatron (Run 1)

abstract:
  We present some new results on searches for new physics at the Tevatron Run 1
(1992 -- 1996). The topics covered are searches for R-Parity violating and
conserving mSUGRA, large extra dimensions in di-photon and monojet channels,
leptoquark in jets + missing Et channel, and two model independent searches.
All results were finalized during the past year.


title:
Differential cross sections, charge production asymmetry, and
  spin-density matrix elements for D*(2010) produced in 500 GeV/c pi^- nucleon
  interactions

abstract:
  We report differential cross sections for the production of D*(2010) produced
in 500 GeV/c pi^- nucleon interactions from experiment E791 at Fermilab, as
functions of Feynman-x (x_F) and transverse momentum squared (p_T^2). We also
report the D* +/- charge asymmetry and spin-density matrix elements as
functions of these variables. Investigation of the spin-density matrix elements
shows no evidence of polarization. The average values of the spin alignment are
\eta= 0.01 +- 0.02 and -0.01 +- 0.02 for leading and non-leading particles,
respectively.


title: Measurement of \chi_{c2} Production in Two-Photon Collisions

abstract:
  The production of the \chi_{c2} charmonium state in two-photon collisions has
been measured with the Belle detector at the KEKB e^+e^- collider. A clear
signal for \chi_{c2} --> \gamma J/\psi, J/\psi --> l^+l^- is observed in a
32.6fb^{-1} data sample accumulated at center-of-mass energies near 10.6GeV,
and the product of its two-photon decay width and branching fraction is
determined to be \Gamma_{\gamma\gamma}(\chi_{c2})B(\chi_{c2} --> \gamma J/\psi)
B(J/\psi --> l^+l^-)= 13.5 +/- 1.3(stat.) +/- 1.1(syst.)eV.


title: Results on searches beyond the Standard Model at HERA

abstract:
  Signals of physics beyond the Standard Model at HERA have been searched for
by the H1 and ZEUS collaborations. Results are reported about searches of
contact interaction effects, leptoquarks, R-parity violating squarks, excited
fermions and single top production. The analyses used the data set collected
during the HERA phase I, consisting in about 110 (15) pb^{-1} of e^+p (e^-p)
collisions per experiment. No evidence for new physics has been found and
limits have been set on the parameters of the models considered.


title:
Evidence for the $b\to u$ Transition $B^0\to D_s^+ pi^-$ and a Search
  for $B^0\to D_s^*+ pi^-$

abstract:
  We report evidence for the $b\to u$ transition $B^0 \to D_s^{+}\pi^-$ and the
results of a search for $B^0 \to D_s^{*+} \pi^-$ from a sample of $61.6\times
10^6$ $Y(4S)$ decays into $B$ meson pairs collected with the BaBar detector at
the PEP II asymmetric $e^{+}e^{-}$ collider.
  The observed $B^0 \to D_s^{+} \pi^-$ yield has a probability of $4.4 \times
10^{-4}$ to be a fluctuation of the background (3.5 $\sigma$) and we measure
the branching fraction $B^0 \to D_s^{+} \pi^-=3.1 \pm 1.0 ({\rm stat.})\pm 1.0
({\rm syst.})$.
  We also set a limit $B^0 \to D_s^{*+} \pi^- <~4.3\times 10^{-5}$ at 90% C.L.


title: LEP 2 e+e-->ffbar, gamma gamma (gamma): results and interpretations

abstract:
  Results on LEP 2 e+e-->ffbar and gamma gamma (gamma) production are
presented. These are compared with Standard Model predictions, and then used to
set limits on various New Physics models, including Low Scale Gravity. Finally
the status of the LEP beam energy determination from radiative return events is
summarised.


title:
Observation of Double cc bar Production in e+ e- Annihilation at sqrt{s}
  ~ 10.6 GeV

abstract:
  We report the observation of prompt J/psi via double ccbar production from
the e+e- continuum. In this process one ccbar pair fragments into a J/psi meson
while the remaining pair either produces a bound charmonium state or fragments
into open charm. Both cases have been observed: the first by studying the mass
spectrum of the system recoiling against the J/psi, and the second by
reconstructing the J/psi together with a charmed meson. We find cross-sections
of \sigma(e+ e- -> J/psi eta_c (gamma)) * BR (eta_c -> >=4 charged) = 0.033
(+0.007 -0.006)(stat) \pm 0.009(syst)pb and \sigma(e+ e- -> J/psi D*+ X) = 0.53
(+0.19 -0.15)(stat) \pm 0.14(syst) pb, and infer \sigma(e+ e- -> J/psi c cbar)
/ \sigma(e+ e- -> J/psi X) = 0.59 (+0.15 -0.13)(stat) \pm 0.12(syst). These
results are obtained from a 46.2/fb data sample collected near the Upsilon(4S)
resonance, with the Belle detector at the KEKB asymmetric energy e+ e-
collider.


title: New Ceres Results

abstract:
  During 1999 the CERES experiment upgraded by the new TPC was taking data from
semicentral Pb+Au collisions at 40 AGeV. The analysis of the di-electron
spectra shows an enhancement in the low mass region of at least the same
magnitude as previously observed at full SPS energy. The results are compared
to model calculations with and without medium modifications of the vector
mesons. The addition of the radial TPC gives more possibilities to study
hadronic observables. The results obtained for the midrapidity Lambda yield and
the AntiLambda/Lambda ratio are compared to the existing systematics


title:
Measurement of the $b \bar b$ Production Cross Section in 920 GeV
  Fixed-Target Proton-Nucleus Collisions

abstract:
  Using the HERA-B detector, the b-bbar production cross section has been
measured in 920 GeV proton collisions on carbon and titanium targets. The
b-bbar production was tagged via inclusive bottom quark decays into J/psi, by
exploiting the longitudinal separation of J/psi->ll decay vertices from the
primary proton-nucleus interaction. Both $e^+e^-$ and $\mu^+\mu^-$ channels
have been reconstructed and the combined analysis yields the cross section
$\sigma(b \bar b) = 32 ^{+14}_{-12} (stat) ^{+6}_{-7} (sys) nb/nucleon$.


title: Diffractive Photoproduction of Psi(2S) Mesons at HERA

abstract:
  Results on diffractive photoproduction of psi(2S) mesons are presented using
data collected between 1996 and 2000 with the H1 detector at the HERA ep
collider. The data correspond to an integrated luminosity of 77 pb^(-1). The
energy dependence of the diffractive psi(2S) cross section is found to be
similar to or possibly somewhat steeper than that for J/psi mesons. The
dependences of the elastic and proton dissociative psi(2S) photoproduction
cross sections on the squared momentum transfer t at the proton vertex are
measured. The t-dependence of the elastic channel, parametrised as e^(bt),
yields b_(el)^(psi(2S))=(4.31+-0.57+-0.46) GeV^(-2), compatible with that of
the J/psi. For the proton dissociative channel the result
b_(pd)^(psi(2S))=(0.59+-0.13+-0.12) GeV^(-2) is 2.3 standard deviations smaller
than that measured for the J/psi. With proper account of the individual
wavefunctions theoretical predictions based on perturbative QCD are found to
describe the measurements well.


title: Recent Charm Results From CLEO

abstract:
  We describe two recent results using data collected with the CLEO detector at
the CESR e+e- collider at energies near the Upsilon(4S). The first is a Dalitz
plot analysis of the decay D0->K0spi+pi-. We observe a rich structure including
the decay D0->K*+pi- which may be produced by D0-D0bar mixing or doubly
Cabibbo-suppressed decays. We also search for D0-D0bar mixing in the decay
D0->K*+e-nuebar. We observe no events and limit the mixing parameter R_mix to
be less than 0.87% at the 95% confidence level.


title: Observation of the eta_c(2S) in exclusive B-->K KsK-pi+ decays

abstract:
  We report the observation of a narrow peak in the KsK-pi+ invariant mass
distribution in a sample of exclusive B-->K KsK-pi+ decays collected with the
Belle detector at the KEKB asymmetric energy e+e- collider. The measured mass
of the peak is M=3654+-6(stat)+-8(syst) MeV/c^2 and we place a 90% confidence
level upper limit on the width of Gamma<55 MeV/c^2. The properties agree with
heavy-quark potential model expectations for the eta_c(2S), the n=2 singlet S
charmonium state.


title:
Wavelet analysis of angular distributions of secondary particles in high
  energy nucleus-nucleus interactions. Irregularity of particle pseudorapidity
  distributions

abstract:
  Experimental data on sulphur and oxygen nuclei interactions with
photoemulsion nuclei at the energies of 200 and 60 GeV/nucleon are analyzed
with the help of a continuous wavelet transform. Irregularities in
pseudorapidity distributions of narrow groups of the secondary shower particles
in the mentioned interactions are observed at application of the second order
derivative of Gaussian as a wavelet. The irregularities can be interpreted as
an existence of the preference emission angles of groups of particles. Such an
effect is expected at emission of Cherenkov gluons in nucleus-nucleus
collisions. Some of the positions of the observed peculiarities on the
pseudorapidity axis coincide with those found by I.M.Dremin et al. (I.M.Dremin
et al. Phys. Lett., 2001, v. B499, p. 97).)


title:
Measurements of the branching fractions of charmless three-body charged
  B decays

abstract:
  We present preliminary results of searches for charged B mesons decaying into
the charmless three-body final states hhh, where h = pi or K, using 51.5 fb^-1
of data collected at the Upsilon(4S) resonance with the BABAR detector at the
SLAC PEP-II asymmetric B Factory. No assumptions are made about intermediate
resonances. We measure the branching fractions B(B+ -> K+ pi- pi+) = (59.2 +-
4.7 +- 4.9) x 10^-6 and B(B+ -> K+ K- K+) = (34.7 +- 2.0 +- 1.8) x 10^-6, where
the first error is statistical and the second error is systematic. In the same
study, we do not observe significant signals for the final states B+ -> pi+ pi-
pi+ and B+ -> K+ K- pi+, and therefore provide the 90% confidence upper limits
B(B+ -> pi+ pi- pi+) < 15 x 10^-6 and B(B+ -> K+ K- pi+) < 7 x 10^-6.


title: Long baseline neutrino oscillation experiments

abstract:
  Evidences for neutrino oscillations coming from atmospheric and solar
observations can be probed by terrestrial long baseline experiments. This
requires accelerator beams or nuclear power plants. The current status of these
searches as well as future activities are discussed. A precise determination of
all matrix elements and searches for a leptonic CP-violation will be possible
with high intensity accelerator beams currently discussed in the context of
neutrino factories.


title: Latest CHORUS and NOMAD results

abstract:
  The final result of the NOMAD searches on \nmu - \ntau oscillations as well
as the current status of CHORUS are described. The \nmune analysis of NOMAD
excludes the parameter region of LSND in the range \delm $>10 eV^2$ . New
results on charm physics from both experiments are presented.