title:
Observation of Ds+ K- and evidence for Ds+ pi- final states in neutral B
  decays

abstract:
  We report the first observation of a B meson decay that is not accessible by
a direct spectator process. The channel B0bar -> Ds+ K- is found in a sample of
85 timse 10^6 B Bbar events, collected with the Belle detector at KEKB, with a
branching fraction Br(B0bar -> Ds+ K-)=(4.6^{+1.2}_{-1.1} +- 1.3) times
10^{-5}. We also obtain evidence for the B0 -> Ds+ pi- decay with branching
fraction Br(B0 -> Ds+ pi-)=(2.4^{+1.0}_{-0.8} +- 0.7) times 10^{-5}. This value
may be used to extract a model-dependent value of |Vub|.


title: Observation of the Decay Omega_C^0 --> Omega- e+ nu_e

abstract:
  Using the CLEO detector at the Cornell Electron Storage Ring, we have
observed the Omega_c (css ground state) in the decay Omega_c -> Omega- e+ nu.
We find a signal of 11.4 +- 3.8 (stat) events. The probability that we have
observed a background fluctuation is 7.6 x 10-5. We measure BF(Omega_c ->
Omega- e+ nu) x sigma(e+ e- -> Omega_c X) = (42.2 +- 14.1 (stat) +- 5.7 (syst))
fb and R = Gamma(Omega_c -> Omega- pi+)/Gamma(Omega_c -> Omega- e+ nu) = 0.41
+- 0.19 (stat) +- 0.04 (syst). This is the first statistically significant
observation of an individual decay mode of the Omega_c in e+ e- annhiliation,
and the first example of a baryon decaying via beta-emmision, where no quarks
from the first generation participate in the reaction.


title:
Measurement of B0->Ds(*)+D*- branching fractions and polarization in the
  decay B0->Ds*+D*- with a partial reconstruction technique

abstract:
  We present measurements of the decays B0->Ds(*)+D*-, using data recorded by
the BABAR detector in 1999 and 2000, consisting of 20.8 fb^-1. The analysis is
conducted with a partial reconstruction technique, in which only the Ds(*)+ and
the soft pion from the D*- decay are reconstructed. From the observed rates, we
measure the branching fractions BR(B0->Ds+D*-) = (1.03 +- 0.14 +- 0.13 +-
0.26)% and BR(B0->Ds*+D*-) = (1.97 +- 0.15 +- 0.30 +- 0.49)%, where the first
error is statistical, the second is systematic, and the third is the error due
to the Ds+->phi pi+ branching fraction uncertainty. From the B0->Ds*+D*-
angular distributions, we measure the fraction of longitudinal polarization
Gamma_L/Gamma = (51.9 +- 5.0 +- 2.8)%, which is consistent with the theoretical
prediction, based on factorization. These results are preliminary.


title:
Measurement of the CKM Matrix Element |Vub| with Charmless Exclusive
  Semileptonic B Meson Decays at BABAR

abstract:
  We present a preliminary measurement of the branching fraction for B to rho e
nu and of the CKM matrix element |Vub| using approximately 55 million B Bbar
meson pairs collected with the BABAR detector. Using isospin relations for
several modes we find BF(B0 to rho- e+ nu) = (3.39+-0.44+-0.52+-0.60)x10^(-4)
and |Vub| = (3.69+-0.23+-0.27+0.40-0.59)x10^(-3). The quoted errors are
statistical, systematic, and theoretical, respectively. These results are
obtained by using five different form-factor calculations.


title:
Measurement of the Inclusive Electron Spectrum in Charmless Semileptonic
  B Decays Near the Kinematic Endpoint

abstract:
  A preliminary result on the study of the inclusive electron spectrum in B ->
X_u e nu decays above the kinematic limit for the dominant B -> X_c e nu
transitions is presented. This study is performed at the PEP-II asymmetric B
Factory, where B meson pairs are produced in the decay of the Upsilon(4S)
resonance. For the electron momentum range of 2.3 - 2.6 GeV/c in the
Upsilon(4S) rest frame, the partial branching ratio is measured to be Delta B(B
-> X_u e nu)=(0.152+-0.014+-0.014) 10^{-3}.


title:
Evidence for the Flavor Changing Neutral Current Decays B to K l+ l- and
  B to K* l+ l-

abstract:
  We present preliminary results from a search for the rare, flavor-changing
neutral current decays B to K l+ l- and B to K* l+ l-, where l+ l- is either an
e+ e- or mu+ mu- pair. The data sample comprises (84.4 +- 0.9) X 10e6
upsilon(4S) to B B-bar decays (77.8 /fb) collected with the BaBar detector at
the PEP-II B factory. For B to K l+ l-, we observe a signal with estimated
significance of 4.4 sigma and obtain B(B to K l+ l-) = (0.78 +0.24 -0.20 +0.11
-0.18) X 10e-6 (averaged over l = e and mu). For B to K* l+ l-, we observe an
excess of events over background with estimated significance of 2.8 sigma. We
obtain B(B to K* l+ l-) = (1.68 +0.68 -0.58 +-0.28) X 10e-6 and the 90% C.L.
upper limit B(B to K* l+ l-) < 3.0 X 10e-6.


title: Search for Decays of B0 Mesons into Pairs of Leptons

abstract:
  We present a search for the decays B0->e+e-, B0->mu+mu-, and B0->emu in data
collected at the Upsilon(4S) with the BABAR detector at the SLAC B Factory.
Using a data set of 54.4 fb-1, we find no evidence for a signal and set the
following preliminary upper limits at the 90% confidence level: B(B0->e+e-)<
3.3*10E-7, B(B0->mu+mu-) < 2.0*10E-7, and B(B0->emu) < 2.1*10E-7.


title:
Measurement of the First Hadronic Spectral Moment from Semileptonic B
  Decays

abstract:
  A preliminary determination of the first moment of the hadronic mass
distribution <(M_X)^2 - bar{m_D}^2> in semileptonic B decays has been obtained
as a function of the minimum lepton momentum, ranging from 0.9 to 1.6 GeV/c.
The measurement is based on a new technique involving BBbar events in which one
fully reconstructed B meson decays hadronically and the recoiling B decays
semileptonically. The mass of the hadrons in the semileptonic decay is
determined from a kinematic fit to the whole event. For different minimum
lepton momenta, the mass distribution is decomposed into contributions from
various charm resonant states and a non-resonant contribution, allowing for the
determination of the first moment. From these moments the Heavy Quark Effective
Theory (HQET) parameters lambda_1 and Lambdabar can be derived. For lepton
momenta in the B rest frame above 1.5 GeV/c, we find a first moment that is
compatible with existing measurements. However, if we extend the measurement to
lower values of lepton momenta, the data can only be described by Operator
Product Expansion calculations if we use significantly different values for
Lambdabar and lambda_1 than obtained from earlier measurements based on lepton
momentum spectra and the photon spectrum in b --> s gamma transitions.


title:
Measurement of the B^0 -> D^*-a_1^+ Branching Fraction with Partially
  Reconstructed D^*

abstract:
  The B^0 -> D^*-a_1^+ branching fraction has been measured with data collected
by the BABAR experiment in 1999 and 2000 corresponding to a total integrated
luminosity of 20.6 fb^-1. Signal events have been selected using a partial
reconstruction technique, in which only the a_1^+ and the slow pion (pi_s) from
the D^*- decay are identified. A signal yield of 18400 +/- 1200 events has been
found, corresponding to a preliminary branching fraction of (1.20 +/-
0.07(stat) +/- 0.14 (syst))%.


title:
Measurement of the Branching Fractions for the Exclusive Decays of B0
  and B+ to Dbar(*)D(*)K

abstract:
  Using data collected with the babar detector between 1999 and 2002, we report
the observation of 823+-57 B0 and 969+-65 B+ decays to Dbar(*)D^(*)K, where
Dbar(*) and D(*) are fully reconstructed and where K is either a K+ or a K0_S
decaying to pi+pi-. All 22 possible B decays to Dbar(*)D(*)K are reconstructed
exclusively and the corresponding branching fractions or limits are determined.
The preliminary branching fractions of the B0 and of the B+ to Dbar(*)D^(*)K
are found to be Br(B0->Dbar(*)D^(*)K)=(4.3+-0.3(stat)+-0.6 (syst))10^-2
Br(B+->Dbar(*)D^(*)K)=(3.5+-0.3(stat)+-0.5 (syst))10^-2


title:
Measurement of Branching Ratios and CP Asymmetries in B- -> D0(CP)K-
  Decays

abstract:
  We present preliminary results of the analysis of B -> D0 h decays, with h =
pi, K and the D0 reconstructed in the channels K- pi+, K- pi+ pi+ pi-, K- pi+
pi0 and in the CP eigenstate K-K+, using data collected by the BABAR detector
during the years 2000-2002 at the PEP-II asymmetric-energy B Factory at SLAC.
We have measured the ratio of the branching fractions R = Br(B- -> D0 K-) /
Br(B- -> D0 pi-) = (8.31 +- 0.35 (stat) +- 0.20 (syst))% and the direct CP
asymmetry A(CP) = (Br(B- -> D0(CP) K-) - Br(B+ -> D0(CP) K+)) / (Br(B- ->
D0(CP) K-)+Br(B+ -> D0(CP) K+)) = 0.17 +- 0.23 (stat) +0.09 -0.07 (syst).


title:
Measurement of the CP-Violating Asymmetry Amplitude sin2beta with the
  BaBar Detector

abstract:
  We present updated results on time-dependent CP-violating asymmetries in
neutral B decays to several CP eigenstates. The measurements use a data sample
of about 62 million Y(4S) --> B Bbar decays collected between 1999 and 2001
with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We
measure sin2beta = 0.75 +/- 0.09 (stat) +/- 0.04 (syst) and |lambda| = 0.92 +/-
0.06 (stat) +/- 0.02 (syst).


title:
Dalitz Plot Analysis of D0 Hadronic Decays D0 -> K0K-pi+, D0 ->
  K0barK+pi- and D0 -> K0barK+K-

abstract:
  A Dalitz plot analysis of the D0 hadronic decays D0 -> K0 K- pi+, D0 -> K0bar
K+ pi- and D0 -> K0bar K+ K- is presented. This analysis is based on a data
sample of 22 fb-1 collected with the BABAR detector at the PEP-II
asymmetric-energy B Factory at SLAC running on or near the Y(4S) resonance. The
events are selected from continuum e+ e- annihilations using the decay D*+ ->
D0 pi+. Preliminary measurements of the branching fractions of the above
hadronic decays are obtained. Preliminary estimates of fractions and phases for
resonant and nonresonant contributions to the Dalitz plot are also presented.


title: Charmless Hadronic Two-Body B Meson Decays

abstract:
  We report the results of a study of two-body B meson decays to the complete
set of K pi, pi pi, and K K final states. The study is performed on a data
sample of 31.7 +/- 0.3 million B B-bar events recorded on the Upsilon(4S)
resonance by the Belle experiment at KEKB. We observe significant signals in
all K pi final states and in the pi+ pi- and pi+ pi0 final states. We set
limits on the pi0 pi0 and K K final states. A search is performed for
partial-rate asymmetries between conjugate states for flavor-specific final
states.


title:
CLEO-c and CESR-c: Allowing Quark Flavor Physics to Reach its Full
  Potential

abstract:
  We report on the physics potential of a proposed conversion of the CESR
machine and the CLEO detector to a charm and QCD factory: ``CLEO-c and CESR-c''
that will make crucial contributions to quark flavor physics this decade, and
may offer our best hope for mastering non-perturbative QCD, which is essential
if we are to understand strongly coupled sectors in the new physics that lies
beyond the Standard Model.


title:
Measurement of Branching Fractions of Color-Suppressed Decays of the
  B0bar Meson to D0 pi0, D0 eta, and D0 omega

abstract:
  We report preliminary results of an experimental investigation of the
color-suppressed decays bar{B^0} --> D^0 pi^0, D^0 eta, and D^0 omega. We
measure the branching fractions B (bar{B^0} --> D^0 pi^0) = (2.89 +/- 0.29
(stat.) +/- 0.38 (syst.)) times 10^{-4}, B (\bar{B^0} \to D^0 \eta) = (2.41 \pm
0.39 (stat.) +/- 0.32 (syst.)) times 10^{-4}, and B (bar{B^0} --> D^0 omega) =
(2.48 +/- 0.40 (stat.) +/- 0.32 (syst.)) times 10^{-4}. The results are based
on (48.8 +/- 0.5) times 10^6 B B-bar pairs collected with the BaBar detector.
The branching fractions of these color-suppressed decays are significantly
larger than theoretical expectations based upon factorization.


title:
Interaction region for gamma-gamma, gamma-electron collisions at linear
  colliders

abstract:
  Photon colliders (gamma-gamma, gamma-electron) are based on backward Compton
scattering of laser light off the high energy electrons in linear colliders.
All projects of linear colliders include this option. In this paper physics
motivation, possible parameters and some interaction region aspects of photon
colliders are discussed.


title: A non-QE signature of nu_e appearance in a water Cherenkov detector

abstract:
  We argue that analyzing the nu_e- and bar{nu_e}-induced CC reactions nu_e n
--> e^- pi^0 p and bar{nu}_e p --> e^+ pi^0 n along with quasielastics may
significantly enhance the sensitivity of a water Cherenkov detector to
subleading oscillations nu_mu --> nu_e and bar{nu}_mu --> bar{nu}_e at neutrino
energies ~ 2 GeV, as projected for the off-axis neutrino beam of NuMI.The
neutral-current background to these reactions is less than to quasielastics,
and can be further suppressed by reconstructing theprimary vertex of the
collision.


title:
Precision luminosity measurement at LHC using two-photon production of
  mu^+ mu^- pairs

abstract:
  The application of the two-photon process pp -> pp + mu^+mu^- for the
luminosity measurements at LHC with the ATLAS detector is considered. The
expected accuracy of the absolute offline luminosity determination is 1 - 2 %
for the luminosity range of 10^{33} - 10^{34} cm^-2 s^-1. The preliminary cross
section estimates done for LHCb promise the same level of the luminosity
measurement accuracy at L = 2 x 10^{32} cm^-2 s^-1.


title: Status of D0 for B Physics

abstract:
  The B physics program planned for the D0 Upgrade Detector for Run 2 of the
Tevatron is described. Current performance of the detector pertinent to B
physics is presented and compared to expectations. Detection of b hadrons
through semileptonic decay and lifetime information is shown and some examples
of prospects for the future given.


title: Study of Inclusive Production of Charmonium Mesons in B Decay

abstract:
  The inclusive production of charmonium mesons in B meson decay has been
studied in a 20.3 fb$^{-1}$ data set collected by the BaBar experiment
operating at the $\Upsilon(4S)$ resonance. Branching fractions have been
measured for the inclusive production of the charmonium mesons $J/\psi$,
$\psi(2S)$, $\chi_{c1}$, and $\chi_{c2}$. The branching fractions are also
presented as a function of the center-of-mass momentum of the mesons and of the
helicity of the $J/\psi$.


title:
An Improved Measurement of Mixing-induced CP Violation in the Neutral B
  Meson System

abstract:
  We present an improved measurement of the standard model CP violation
parameter sin2phi_1 (also known as sin2beta) based on a sample of 85 times 10^6
B Bbar 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 a J/psi K_S, psi(2S) K_S, chi_{c1} K_S, eta_c K_S, J/psi K^{*0}, or J/psi
K_L CP-eigenstate decay channel and the flavor of accompanying B meson is
identified from itsdecay products. From the asymmetry in the distribution of
the time intervals between the two B meson decay points, we obtain sin2phi_1 =
0.719 +/- 0.074(stat) +/- 0.035(syst). We also report measurements of CP
violation parameters for the related B^0 -> J/psi pi^0 decay mode and the
penguin-dominated processes B^0 -> eta' K_S, phi K_S and K^+K^- K_S.


title: Commissioning of SLAC SLD 45-Degree Chambers

abstract:
  The SLD experiment at the Stanford Linear Accelerator Center had a
significant gap in its muon tracking coverage, provided by the Warm Iron
Calorimeter. Supplemental planes of limited streamer tube chambers were added
to improve the coverage in the vicinity of the gap at 0.65 < |cos(theta)|<
0.85. A software effort to upgrade the tracking software for this system is
detailed. The commissioning of the forty-five degree chamber region of the SLAC
SLD Warm Iron Calorimeter is presented. This task involved the completion of
the forty-five degree chamber region geometry for the Warm Iron Calorimeter's
fitter and swimmer and the changing of the way multiple scattering effects are
treated in the fitter algorithm.


title:
Search for the Production of Single Sleptons through R-parity Violation
  in p bar{p} Collisions at sqrt{s}=1.8 TeV

abstract:
  We report the first search for supersymmetric particles via s-channel
production and decay of smuons or muon sneutrinos at hadronic colliders. The
data for the two-muon and two-jets final states were collected by the DO
experiment, and correspond to an integrated luminosity of 94 +/- 5 pb^{-1}.
Assuming that R-parity is violated via the single coupling
lambda^{prime}_{211}, the number of candidate events is in agreement with
expectation from the standard model. Exclusion contours are given in the
(m_0,m_{1/2}) and (m_{tilde{chi}},m_{tilde{nu}}) planes for
lambda^{prime}_{211}=0.09, 0.08 and 0.07.


title: Measurement of the Positive Muon Anomalous Magnetic Moment to 0.7 ppm

abstract:
  A higher precision measurement of the anomalous g value, a_mu = (g-2)/2, for
the positive muon has been made at the Brookhaven Alternating Gradient
Synchrotron, based on data collected in the year 2000. The result a_{mu^+} = 11
659 204(7)(5) times 10^{-10} (0.7 ppm) is in good agreement with previous
measurements and has an error about one half that of the combined previous
data. The present world average experimental value is a_mu(exp) = 11 659 203(8)
times 10^{-10} (0.7 ppm).


title: The First RHIC Spin Run - at PHENIX and PP2PP

abstract:
  The RHIC spin program will probe the spin structure of the proton with
polarized quarks and gluons by colliding beams of polarized protons at
Brookhaven. The first collisions, at sqrt(s)=200GeV, were recorded this year in
December 2001 and January 2002. This report describes the first run, and our
plans for the next five+ years, with planned runs at sqrt(s)=200 and 500GeV,
and luminosity L=2x10^{32} cm^{-2}s^{-1}. See also the presentation at Moriond
by Bernd Surrow on the first run with the STAR detector. Here we include a
first look at measurements with the PHENIX and PP2PP detectors.


title:
Anomalous Single Production of the Fourth SM Family Quarks and Leptons
  at Future Electron-Positron Colliders

abstract:
  We study the possibilty to produce single fourth SM family fermions at
electron-positron colliders via anomalous gamma-f4-f interactions.


title:
Solar Neutrino Precision Measurements using all 1496 Days of
  Super-Kamiokande-I Data

abstract:
  The results of the entire Super-Kamiokande-I solar neutrino data are
presented. The measured interaction rate is 47+-2% of the rate expected by the
standard solar model and 133+-5% of the rate implied by the SNO charged-current
interaction rate. There is no evidence for spectral distortion or a time
dependent neutrino flux. Together with the rates of other experiments, the
Super-Kamiokande results imply active solar neutrino oscillations and restrict
neutrino mixing and mass square difference to lie within the LMA solution area.


title: Signal Significance in Particle Physics

abstract:
  The concept of the "statistical significance" of an observation, and how it
is used in particle physics experiments is reviewed. More properly known as a
"p-value," the statistical foundations for this concept are reviewed from a
freqentist perspective. The discovery of the top quark at the Fermilab Tevatron
Collider and a more recent analysis of data recorded at Fermilab are used to
illustrate practical applications of these concepts.


title:
Measurement of Exclusive B Decays to Final States Containing a Charmed
  Baryon

abstract:
  Using data collected by the CLEO detector in the Upsilon(4S) region, we
report new measurements of the exclusive decays of B mesons into final states
of the type Lambda_c^+ p-bar n(pi), where n=0,1,2,3. We find signals in modes
with one, two and three pions and an upper limit for the two body decay
Lambda_c^+ pbar. We also make the first measurements of exclusive decays of B
mesons to Sigma_c p-bar n(pi), where n=0,1,2. We find signals in modes with one
and two pions and an upper limit for the two body decay Sigma_c p-bar.
Measurements of these modes shed light on the mechanisms involved in B decays
to baryons.


title:
Measurements of Direct CP Violation, CPT Symmetry, and Other Parameters
  in the Neutral Kaon System

abstract:
  We present a series of measurements based on K -> pi+pi- and K -> pi0pi0
decays collected in 1996-1997 by the KTeV experiment (E832) at Fermilab. We
compare these four K -> pipi decay rates to measure the direct CP violation
parameter Re(e'/e) = (20.7 +- 2.8) x 10^-4. We also test CPT symmetry by
measuring the relative phase between the CP violating and CP conserving decay
amplitudes for K->pi+pi- (phi+-) and for K -> pi0pi0 (phi00). We find the
difference between the relative phases to be Delta-phi = phi00 - phi+- = (+0.39
+- 0.50) degrees and the deviation of phi+- from the superweak phase to be
phi+- - phi_SW =(+0.61 +- 1.19) degrees; both results are consistent with CPT
symmetry. In addition, we present new measurements of the KL-KS mass difference
and KS lifetime: Delta-m = (5261 +- 15) x 10^6 hbar/s and tauS = (89.65 +-
0.07) x 10^-12 s.


title: B0s Oscillation Results

abstract:
  We review new studies of the time dependence of B0s - B0s-bar mixing by the
ALEPH, DELPHI and SLD Collaborations, with an emphasis on the different
analysis methods used. Combining all available results yields a preliminary
lower limit on the oscillation frequency of dms > 14.4 ps-1 at the 95% C.L.


title:
A precision measurement of direct CP violation in the decay of neutral
  kaons into two pions

abstract:
  The direct CP violation parameter Re(epsilon'/epsilon) has been measured from
the decay rates of neutral kaons into two pions using the NA48 detector at the
CERN SPS. The 2001 running period was devoted to collecting additional data
under varied conditions compared to earlier years (1997-99). The new data yield
the result: Re(epsilon'/epsilon) = (13.7 +/- 3.1) times 10^{-4}. Combining this
result with that published from the 1997, 98 and 99 data, an overall value of
Re(epsilon'/epsilon) = (14.7 +/- 2.2) times 10^{-4} is obtained from the NA48
experiment.


title:
Accelerating Muons to 2400 GeV/c with Dogbones Followed by Interleaved
  Fast Ramping Iron and Fixed Superconducting Magnets

abstract:
  The first acceleration stage for this muon collider scenario includes twenty
passes through a single two GeV Linac. Teardrop shaped arcs of 1.8 Tesla fixed
field magnets are used at each end of the Linac. This dogbone geometry
minimizes muon decay losses because muons pass through shorter arcs when their
gamma boost is low. Two 2200 meter radius hybrid rings of fixed superconducting
magnets and iron magnets ramping at 200 Hz and 330 Hz are used as part of the
second stage of muon acceleration. Muons are given 25 GeV of RF energy per
orbit. Acceleration is from 250 GeV/c to 2400 GeV/c and requires a total of 86
orbits in both rings; 82% of the muons survive. The total power consumption of
the iron dipoles is 4 megawatts. Stranded copper conductors and thin magnetic
laminations are used to reduce power losses.


title: Drift chamber readout system of the DIRAC experiment

abstract:
  A drift chamber readout system of the DIRAC experiment at CERN is presented.
The system is intended to read out the signals from planar chambers operating
in a high current mode. The sense wire signals are digitized in the 16-channel
time-to-digital converter boards which are plugged in the signal plane
connectors. This design results in a reduced number of modules, a small number
of cables and high noise immunity. The system has been successfully operating
in the experiment since 1999


title:
Development of a Momentum Determined Electron Beam in the 1 -45 GeV
  Range

abstract:
  A beam line for electrons with energies in the range of 1 to 45 GeV, low
contamination of hadrons and muons and high intensity up to 10^6 per
accelerator spill at 27 GeV was setup at U70 accelerator in Protvino, Russia. A
beam tagging system based on drift chambers with 160 micron resolution was able
to measure relative electron beam momentum precisely. The resolution sigma_p p
was 0.13% at 45 GeV where multiple scattering is negligible. This test beam
setup provided the possibility to study properties of lead tungstate crystals
(PbWO_4) for the BTeV experiment at Fermilab.


title: Exclusive Vector Meson Production at HERA

abstract:
  An extended study of exclusive vector meson production in e,p interactions
has been performed by the H1 and the ZEUS collaborations at the HERA collider.
Recent measurements are reported and discussed within the framework of the
dipole model and pQCD.


title: First Observation of the Doubly Charmed Baryon Xi_cc^+

abstract:
  We observe a signal for the doubly charmed baryon Xi_cc^+ in the charged
decay mode Xi_cc^+ --> Lambda_c^+ K- pi+ in data from SELEX, the charm
hadro-production experiment at Fermilab. We observe an excess of 15.9 events
over an expected background of 6.1 +/- 0.5 events, a statistical significance
of 6.3sigma. The observed mass of this state is (3519 +/- 1) MeV/c^2. The
Gaussian mass width of this state is 3MeV/c^2, consistent with resolution; its
lifetime is less than 33fsec at 90% confidence.


title: Hermes and the spin of the proton

abstract:
  HERMES is a second generation experiment to study the spin structure of the
nucleon, in which measurements of the spin dependent properties of
semi-inclusive deep-inelastic lepton scattering are emphasized. Data have been
accumulated for semi-inclusive pion, kaon, and proton double-spin asymmetries,
as well as for high-p_T hadron pairs, and single-spin azimuthal asymmetries for
pion electroproduction and deep virtual Compton scattering. These results
provide information on the flavor decomposition of the polarized quark
distributions in the nucleon and a first glimpse of the gluon polarization,
while the observation of the azimuthal asymmetries show promise for probing the
tensor spin of the nucleon and isolating the total angular momentum carried by
the quarks.


title: Nuclear shadowing at low Q^2

abstract:
  We re-examine the role of vector meson dominance in nuclear shadowing at low
Q^2. We find that models which incorporate both vector meson and partonic
mechanisms are consistent with both the magnitude and the Q^2 slope of the
shadowing data.


title: HERA-3

abstract:
  A brief review is given on the physics potential of HERA beyond the presently
approved programme. Questions of particular interest include QCD in a regime of
weak coupling and high partonic densities achieved in eA collisions and spin
physics with polarized colliding beams. Those two distinct programmes can be
naturally merged and even substantiated by using polarized and unpolarized
deuterons at the starting phase of the HERA-3 run. Basic machine implications
and detector requirements are also discussed.


title:
Measurement of the Branching Fraction for Inclusive Semileptonic B Meson
  Decays

abstract:
  A largely model-independent measurement of the inclusive electron momentum
spectrum and branching fraction for semileptonic decays of B mesons is
presented based on data recorded at the Upsilon(4S) resonance with the BABAR
detector. Backgrounds from secondary charm decays are separated from prompt B
decays using charge and angular correlations between the electron from one B
meson and a high momentum electron tag from the second B meson. The resulting
branching fraction is BR(B -> X e nu) = (10.87 +-0.18(stat)+-0.30(syst))%.
Based on this measurement we determine the CKM matrix element |V_cb|.


title: Search for Neutrinoless tau Decays Involving the K_S^0 Meson

abstract:
  We have searched for lepton flavor violating decays of the tau lepton with
one or two KS0 mesons in the final state. The data used in the search were
collected with the CLEO II and II.V detectors at the Cornell Electron Storage
Ring (CESR) and correspond to an integrated luminosity of 13.9 fb^-1 at the
Upsilon(4S) resonance. No evidence for signals were found, therefore we have
set 90% confidence level (C.L.) upper limits on the branching fractions B(tau
-> e KS0) < 9.1e-7, B(tau -> mu KS0) < 9.5e-7, B(tau -> e 2KS0) < 2.2e-6, and
B(tau -> mu 2KS0) < 3.4e-6. These represent significantly improved upper limits
on the two-body decays and first upper limits on the three-body decays.


title: Search for exclusive decays of the Lambda_b baryon at LEP-1

abstract:
  A search for fully reconstructed Lambda_b baryons was performed, using about
3.5x10^6 hadronic Z0 decays acquired by the DELPHI detector at LEP-1. Two event
candidates were found in the colour-suppressed decay channel J/psi Lambda, and
four in the colour-allowed channels Lambda_c pi/a1, with an estimated
background of 0.25 and 1.05 events, respectively. Measurements of the Lambda_b
mass yield (5612.1 +- 21.2 +- 6.0) MeV and (5610 +- 24 +- 16) MeV,
respectively, and are consistent with the world average value of PDG.


title: A New Method for the High-Precision Alignment of Track Detectors

abstract:
  Track detectors in high energy physics experiments require an accurate
determination of a large number of alignment parameters. A general method has
been developed, which allows the determination of up to several thousand
alignment parameters in a simultaneous linear least squares fit of an arbitrary
number of tracks. The sensitivity of the method is demonstrated in an example
of the simultaneous alignment of a 56-plane drift chamber and a 2-plane silicon
tracker. About 1400 alignment parameters are determined in a fit of about fifty
thousand tracks.


title: An Unfolding Method for High Energy Physics Experiments

abstract:
  Finite detector resolution and limited acceptance require to apply unfolding
methods in high energy physics experiments. Information on the detector
resolution is usually given by a set of Monte Carlo events. Based on the
experience with a widely used unfolding program (RUN) a modified method has
been developed.
  The first step of the method is a maximum likelihood fit of the Monte Carlo
distributions to the measured distribution in one, two or three dimensions; the
finite statistic of the Monte Carlo events is taken into account by the use of
Barlows method with a new method of solution. A clustering method is used
before to combine bins in sparsely populated areas. In the second step a
regularization is applied to the solution, which introduces only a small bias.
The regularization parameter is determined from the data after a
diagonalization and rotation procedure.


title:
A ZEUS next-to-leading-order QCD analysis of data on deep inelastic
  scattering

abstract:
  Next-to-leading order QCD analyses of the ZEUS data on deep inelastic
scattering together with fixed-target data have been perfomed, from which the
gluon and the quark densities of the proton and the value of the strong
coupling constant, alpha_s(M_Z), were extracted. The study includes a full
treatment of the experimental systematic uncertainties including point-to-point
correlations. The resulting uncertainties in the parton density functions are
presented. A combined fit for alpha_s(M_Z) and the gluon and qurak densities
yields a value of alpha_s(M_Z) in agreement with the world average. The parton
density functions derived from ZEUS data alone indicate the importance of HERA
data in determining sea quark and gluon distributions at low x. The limits of
applicability of the theoretical formalism have been explored by comparing the
fit predictions to ZEUS data at very low Q^2.


title: Monocular UHECR Spectra as Measured by HiRes

abstract:
  We have measured the spectrum of UHE cosmic rays in monocular mode using
separately both detectors the High Resolution Fly's Eye experiment. We describe
the two detectors and the basic methods of analysis, and we present our
measured spectra. We compare these spectra with that produced by an
astrophysical source model with galactic and uniformly distributed
extra-galactic sources. We also compare our spectra to the spectra produced by
the AGASA experiment.


title:
Improved Measurement of Mixing-induced CP Violation in the Neutral B
  Meson System

abstract:
  We present an improved measurement of the standard model CP violation
parameter sin2phi_1 (also known as sin2beta) based on a sample of 85 times 10^6
B Bbar 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 a J/psi K_S, psi(2S) K_S, chi_{c1} K_S, eta_c K_S, J/psi K^{*0}, or J/psi
K_L CP-eigenstate decay channel and the flavor of the accompanying B meson is
identified from its decay products. From the asymmetry in the distribution of
the time interval between the two B meson decay points, we obtain sin2phi_1 =
0.719 +/- 0.074(stat) +/- 0.035(syst).


title: $\Omega^-$ Hyperon Decay Modes with the HyperCP Experiment at Fermilab

abstract:
  The HyperCP experiment (Fermilab E871) has the largest recorded sample of
$\Omega^-$ hyperon decays, allowing new searches for three rare decay modes,
each with five charged tracks in the final state. Results are presented for
$\Omega^-\to\Xi^-\pi^+\pi^-$; $\Omega^- \to \Xi^0(1530)\pi^-$; and the
flavor-changing neutral-current decay $\Omega^- \to \Xi^-\mu^+\mu^-$.
Normalization of these measurements were to the decay $\Omega^- \to \Lambda
K^-$ with a five-track topology similar to the signal mode with the subsequent
decay of $\Lambda \to p \pi^-$ and $K^- \to \pi^- \pi^+ \pi^-$ in the decay
volume.


title:
Observation of a 1750 MeV/c^2 Enhancement in the Diffractive
  Photoproduction of K^+K^-

abstract:
  Using the FOCUS spectrometer with photon beam energies between 20 and 160
\gev, we confirm the existence of a diffractively photoproduced enhancement in
$K^+K^-$ at 1750 \mevcc with nearly 100 times the statistics of previous
experiments. Assuming this enhancement to be a single resonance with a
Breit-Wigner mass shape, we determine its mass to be $1753.5\pm 1.5\pm 2.3$
\mevcc and its width to be $122.2\pm 6.2\pm 8.0$ \mevcc. We find no
corresponding enhancement at 1750 \mevcc in $K^*K$, and again neglecting any
possible interference effects we place limits on the ratio $\Gamma (X(1750) \to
K^*K)/\Gamma (X(1750) \to K^+K^-)$. Our results are consistent with previous
photoproduction experiments, but, because of the much greater statistics,
challenge the common interpretation of this enhancement as the $\phi (1680)$
seen in $e^+e^-$ annihilation experiments.


title: A Microsoft Word Font for Anti-Matter

abstract:
  One often wishes to quickly add a few overlined characters such as anti-B0 or
anti-neutrino to a Microsoft Word document. Underlined characters are
straightforward but overlined characters require equation editor which makes
small picture files. The font here allows one to directly add overlined English
and the most used overlined Greek characters to Microsoft Word documents on
Apple Macintosh computers.


title: Measurement of the Electroweak Penguin Process B --> X(s) l+ l-

abstract:
  We report the first measurement of the branching fraction for the inclusive
decay B --> X(s) l+ l-, where l is either an electron or a muon and X(s) is a
hadronic recoil system that contains an s-quark. We analyzed a data sample of
65.4 * 10**6 B meson pairs collected with the Belle detector at the KEKB e+e-
asymmetric-energy collider. We find Br(B --> X(s) l+ l-) = (6.1 +/-1.4(stat)
+1.4-1.1(syst)) * 10**(-6) for dilepton masses greater than 0.2 GeV/c**2.


title: Study of charmless B decays to three-kaon final states

abstract:
  We report on a study of charmless B meson decays to three-kaon final states.
The results are obtained with a 78.7 1/fb data sample collected on the Y(4S)
resonance by the Belle detector operating at the KEKB asymmetric energy
$e^+e^-$ collider. The branching fractions for B decays to three-body K+K+K-,
K0K+K-, KsKsK+, and KsKsKs final states are presented. We also make a first
attempt to perform an isospin analysis of the three-kaon final states.


title: Electroproduction of Dijets at Small Jet Separation

abstract:
  Dijet production in deep-inelastic scattering (DIS) in the range 150 < Q^2 <
35000 GeV^2 has been measured by the H1 collaboration using the Durham jet
algorithm in the laboratory frame. QCD calculations in next-to-leading order
(NLO) are found to give a good description of the data when requiring a small
minimum jet separation, which selects a dijet sample containing 1/3 of DIS
events in contrast to approximately 1/10 with more typical jet analyses.


title:
Analysis of pC-interactions at Momentum of 4.2 GeV/c Within Framework of
  FRITIOF and Cascade Models

abstract:
  Experimental data on multiplicities and kinematical characteristics of
$\pi^-$, $\pi^+$ mesons and protons in the interactions of protons with carbon
nucleus at momentum 4.2 GeV/c in a dependence of collision centrality are
analyzed. Parameter Q which is a difference between multiplicities of positive
and negative charged particles without multiplicity of slow protons with
momentum less than 0.3 GeV/c in an event, is taken as a criteria of collision
centrality. The experimental data on events with different centrality are
compared with predictions of the cascade-evaporation model and the modified
FRITIOF model. For the first time, non-nucleonic degrees of freedom in nuclei
($\Delta ^+, \Delta ^0 $ isobars) are taken into account in the FRITIOF model,
and a commonly good description of the secondary particles characteristics is
reached.


title:
Measurement of the inclusive semileptonic branching fraction of B mesons
  and |Vcb|

abstract:
  We present a measurement of the electron spectrum from inclusive semileptonic
{\it B} decay, using 5.1 fb$^{-1}$ of $\Upsilon(4S)$ data collected with the
Belle detector. A high-momentum lepton tag was used to separate the
semileptonic {\it B} decay electrons from secondary decay electrons. We
obtained the branching fraction, ${\cal B}(B\to X e^+ \nu) = (10.90 \pm 0.12
\pm 0.49)%$, with minimal model dependence.
  From this measurement, we derive a value for the Cabibbo-Kobayashi-Maskawa
matrix element $|V_{cb}| = 0.0408 \pm 0.0010 {\rm (exp)} \pm 0.0025{\rm (th)}$.


title: Charm System Tests of CPT and Lorentz Invariance with FOCUS

abstract:
  We have performed a search for CPT violation in neutral charm meson
oscillations. While flavor mixing in the charm sector is predicted to be small
by the Standard Model, it is still possible to investigate CPT violation
through a study of the proper time dependence of a CPT asymmetry in right-sign
decay rates for $D^0\to K^-\pi^+$ and $\d0b\to K^+\pi^-$. This asymmetry is
related to the CPT violating complex parameter $\xi$ and the mixing parameters
$x$ and $y$: $A_{CPT}\propto{\rm Re} \xi y-{\rm Im} \xi x$ . Our 95% confidence
level limit is $-0.0068<{\rm Re} \xi y-{\rm Im} \xi x<0.0234$. Within the
framework of the Standard Model Extension incorporating general CPT violation,
we also find 95% confidence level limits for the expressions involving
coefficients of Lorentz violation of $(-2.8<N(x,y,\delta)(\Delta a_0 + 0.6
\Delta a_Z)<4.8)\times 10^{-16}$ GeV, $(-7.0<N(x,y,\delta)\Delta a_X<3.8)\times
10^{-16}$ GeV, and $(-7.0<N(x,y,\delta)\Delta a_Y<3.8)\times 10^{-16}$ GeV,
where $N(x,y,\delta)$ is the factor which incorporates mixing parameters $x$,
$y$ and the doubly Cabibbo suppressed to Cabibbo favored relative strong phase
$\delta$.


title:
Search for radiative b-hadron decays in proton-antiproton collisions at
  sqrt(s) = 1.8 TeV

abstract:
  We have performed a search for radiative b-hadron decays using events
produced in proton-antiproton collisions at sqrt(s) = 1.8 TeV and collected by
the Collider Detector at Fermilab. The decays we considered were B_d -> K*0(->
K+ pi-) gamma, B_s -> phi(-> K+ K-) gamma, Lambda_b -> Lambda(-> p pi-) gamma,
and their charge conjugates. Two independent methods to identify photons from
such decays were employed. In the first method, the photon was detected in the
electromagnetic calorimeter. In the second method, the photon was identified by
an electron-positron pair produced through the external photon conversion
before the tracking detector volume. By combining the two methods we obtain
upper limits on the branching fractions for the B_d, B_s and Lambda_b radiative
decays, which, at the 95% confidence level, are found to be B(B_d -> K*0 gamma)
< 1.4 x 10^(-4), B(B_s -> phi gamma) < 1.6 x 10^(-4), and B(Lambda_b -> Lambda
gamma) < 1.9 x 10^(-3).


title: The use of the tau in new particle searches at DELPHI

abstract:
  Several new particle searches have been performed in the DELPHI experiment
involving tau leptons in the resulting final state. The topology and special
characteristics of the tau leptons have been used to discriminate the signal
from the Standard Model background. Limits on new particles have been set,
playing an important role the channels with tau leptons.


title:
Inclusive jet cross sections in the Breit frame in neutral current deep
  inelastic scattering at HERA and determination of alpha_s

abstract:
  Inclusive jet differential cross sections have been measured in neutral
current deep inelastic e+p scattering for boson virtualities Q**2>125 GeV**2.
The data were taken using the ZEUS detector at HERA and correspond to an
integrated luminosity of 38.6 pb-1. Jets were identified in the Breit frame
using the longitudinally invariant K_T cluster algorithm. Measurements of
differential inclusive jet cross sections are presented as functions of jet
transverse energy (E_T,jet), jet pseudorapidity and Q**2, for jets with
E_T,jet>8 GeV. Next-to-leading-order QCD calculations agree well with the
measurements both at high Q**2 and high E_T,jet. The value of alpha_s(M_Z),
determined from an analysis of dsigma/dQ**2 for Q**2>500 GeV**2, is
alpha_s(M_Z) = 0.1212 +/- 0.0017 (stat.) +0.0023 / -0.0031 (syst.) +0.0028 /
-0.0027 (th.).


title: Detecting a Nuclear Fission Reactor at the Center of the Earth

abstract:
  A natural nuclear fission reactor with a power output of 3- 10 terawatt at
the center of the earth has been proposed as the energy source of the earth's
magnetic field. The proposal can be directly tested by a massive liquid
scintillation detector that can detect the signature spectrum of antineutrinos
from the geo-reactor as well as the direction of the antineutrino source. Such
detectors are now in operation or under construction in Japan/Europe. However,
the clarity of both types of measurements may be limited by background from
antineutrinos from surface power reactors. Future U. S. detectors, relatively
more remote from power reactors, may be more suitable for achieving unambiguous
spectral and directional evidence for a 3TW geo-reactor.


title:
Light Scalar Mesons $\sigma(500)$, $f_0(980)$ and $\kappa$ in Charm
  Meson Decays

abstract:
  We present recent results on scalar light mesons based on Dalitz plot
analyses of charm decays from Fermilab experiment E791. Scalar mesons are found
to have large contributions to the decays studied, $D^+\to K^-\pi^+\pi^+$ and
$D^+, D_s^+\to\pi^-\pi^+\pi^+$. From the first decay, we find good evidence for
the existence of the light and broad $\kappa$ meson and we measure its mass and
width. We find strong evidence for the $\sigma(500)$ meson from
$D^+\to\pi^-\pi^+\pi^+$ decay and measure its mass and width. We also present
the results obtained for the $f_0(980)$ parameters through the $D^+_s
\to\pi^-\pi^+\pi^+$ decay. These results demonstrate the importance of charm
decays as a new environment for the study of light meson physics.


title:
Measurement of high-Q^2 e^-p neutral current cross sections at HERA and
  the extraction of xF_3

abstract:
  Cross sections for e^-p neutral current deep inelastic scattering have been
measured at a centre-of-mass energy of 318 GeV using an integrated luminosity
of 15.9 pb^-1 collected with the ZEUS detector at HERA. Results on the
double-differential cross-section d^2s/dxdQ^2 in the range 185 < Q^2 < 50000
GeV^2 and 0.0037 < x < 0.75, as well as the single-differential cross-sections
ds/dQ^2, ds/dx and ds/dy for Q^2 > 200 GeV^2, are presented. To study the
effect of Z-boson exchange, ds/dx has also been measured for Q^2 > 10000 GeV^2.
The structure function xF_3 has been extracted by combining the e^-p results
presented here with the recent ZEUS measurements of e^+p neutral current deep
inelastic scattering. All results agree well with the predictions of the
Standard Model.


title: Study of Exclusive B decays to Charmed Baryons

abstract:
  Using 29.1fb-1 of data accumulated at the Upsilon(4S) with the Belle detector
at KEKB, we have studied the decay modes B0bar->Lambda_c+ pbar pi+pi-, B- ->
Lambda_c+ pbar pi-, and B0bar ->Lambda_c+ pbar. We report branching fractions
of exclusive B decays to charmed baryons with four-, three- and two-body final
states, including intermediate Sigma_c++ and Sigma_c0 states. We observed B0bar
-> Sigma_c(2455)++pbar pi- for the first time with a branching fraction of
(2.38+0.63-0.55+-0.41+-0.62)x10-4 and observed evidence for the two-body decay
B- ->Sigma_c(2455)0 pbar with a branching fraction of
(0.45+0.26-0.19+-0.07+-0.12)x10-4. We also set improved upper limits for the
two-body decays B0bar -> Lambda_c+ pbar and B- -> Sigma_c(2520)0 pbar.


title:
Search for Neutral Higgs Bosons of the Minimal Supersymmetric Standard
  Model in e+e- Interactions at sqrt(s) up to 209 GeV

abstract:
  A search for the lightest neutral CP-even and neutral CP-odd Higgs bosons of
the Minimal Supersymmetric Standard Model is performed using 216.6 pb-1 of data
collected with the L3 detector at LEP at centre-of-mass energies between 203
and 209 GeV. No indication of a signal is found. Including our results from
lower centre-of-mass energies, lower limits on the Higgs boson masses are set
as a function of tan(beta) for several scenarios. For tan(beta) greater than
0.7 they are mh > 84.5 GeV and mA > 86.3 GeV at 95% confidence level.


title: Low x Physics At HERA

abstract:
  Data on low x physics from H1 & ZEUS are presented and their interpretation
discussed. The focus is on the increasing hardness of the energy dependence of
inclusive virtual-photon proton scattering and certain diffractive processes as
the transverse size of the probe decreases.


title:
Improved Direct Measurement of the Parity-Violation Parameter A_b Using
  a Mass Tag and Momentum-Weighted Track Charge

abstract:
  We present an improved direct measurement of the parity-violation parameter
A_b in the Z boson-b quark coupling using a self-calibrating track-charge
technique applied to a sample enriched in Z -> b b-bar events via the
topological reconstruction of the B hadron mass. Manipulation of the SLC
electron-beam polarization permits the measurement of A_b to be made
independently of other Z-pole coupling parameters. From the 1996-98 sample of
400,000 hadronic Z decays, produced with an average beam polarization of 73.4%,
we find A_b = 0.906 +/- 0.022(stat.) +/- 0.023(syst.).


title: Search for the Standard Model Higgs Boson at LEP

abstract:
  One of the missions of the LEP program was the search for the Standard Model
Higgs Boson. The skillful operation of the machine in the year 2000, the final
year of operation, has allowed the four collaborations ALEPH, DELPHI, L3 and
OPAL to collect 536/pb of data at center-of-mass energies of 206 GeV or higher.
This data is used to probe the existence of the Higgs boson up to a mass of
around 115 GeV. Tantalizing candidates have been observed in excess over the
Standard Model predictions, but without enough statistical power to claim a
discovery. A Higgs boson lighter than 114.4 GeV is hence excluded at 95%
confidence level.


title: SELEX RICH Performance and Physics Results

abstract:
  SELEX took data in the 1996/7 Fixed Target Run at Fermilab. The excellent
performance parameters of the SELEX RICH Detector had direct influence on the
quality of the obtained physics results.


title: Measurement of Branching Fractions for $B\to \eta_c K^{(*)}$ Decays

abstract:
  We report measurements of branching fractions for charged and neutral $B\to
\eta_c K$ decays where the $\eta_c$ meson is reconstructed in the $K_S^0
K^{\pm}\pi^{\mp}, K^+ K^- \pi^0, K^{*0} K^-\pi^+$ and $p \bar{p}$ decay
channels. The neutral $B^0$ channel is a CP eigenstate and can be used to
measure the CP violation parameter $\sin 2\phi_1$. We also report the first
observation of the $B^0\to \eta_c K^{*0}$ mode. The results are based on an
analysis of 29.1 fb$^{-1}$ of data collected by the Belle detector at KEKB.


title: Neutron beta-decay and the quark-mixing CKM-matrix

abstract:
  Neutrons study a number of hot topics from the field of particle physics and
cosmology: Recent measurements of various mixed
American-British-French-German-Hungarian-Japan-Russian groups of researchers
determine the strength of the weak interaction of the neutron, which gives us
unique information on quark-mixing and the question of unitarity. Much to our
surprise, with neutron-decay we find a deviation Delta = 0.0083(28) from the
unitarity condition, an effect that cannot be explained by the current Standard
Model of particle physics.


title: Light Mesons from Charm Meson Decays in FNAL E791

abstract:
  An analysis of the Dalitz plots for the decays $D^+\to K^-\pi^+\pi^+$ and
$D^+\to\pi^-\pi^+\pi^+$ indicates that structure with significant phase
variation is required in the s-wave $K^-\pi^+$ and $\pi^-\pi^+$ systems in the
region below 1 GeV/c$^2$ effective mass. A constant, non resonant "contact"
term, together with a simple s-wave Breit Wigner amplitude with $M_{0}=797\pm
19\pm 43, \Gamma_{0}= 175\pm 12\pm 12$ MeV/c$^2$ for the $\Km\pip$ system and
$M_{0}=478^{+24}_{-23}\pm 17, \Gamma_{0}=324^{+42}_{-40}\pm 21$ MeV/c$^2$ for
the $\pi^-\pi^+$ system provide good fits to the data in this region.


title: Diffraction at RHIC

abstract:
  The relativistic heavy ion collider (RHIC) offers many opportunities to study
diffraction in pp, pA and AA collisions. Because both proton beams can be
polarized, RHIC offers the unique possibility of studying polarization effects
in diffraction. We will introduce diffraction at RHIC and present three
compelling physics topics: hard diffraction with polarized beams,
identification of exotic mesons (non-q q-bar states) in double-Pomeron
collisions, and using diffraction to measure the low-x gluon density in $pA$
collisions, testing models of gluon saturation and the colored glass
condensate. This note developed from discussion at a workshop on ``Diffraction
and Glueball Production at RHIC'' at Brookhaven National Laboratory, May 17-18,
2002.


title: A measurement of the rate of wrong-sign decays D0 -> K+ pi-

abstract:
  A D0 meson can decay to K+ pi- through doubly Cabibbo-suppressed decay or via
D0-D0bar mixing. With 46.2 fb^{-1} of integrated luminosity collected by Belle,
we have measured the time integrated rate of the wrong-sign process D0 -> K+
pi- relative to that of the Cabibbo-favored process D0 -> K- pi+ to be R_WS =
(0.372 +- 0.025 +0.009/-0.014) % (preliminary). The D0-D0bar mixing parameters
can be derived from the time distribution of the wrong-sign process.


title: NLO QCD Fit to H1 Diffractive DIS Data

abstract:
  A new NLO DGLAP QCD fit to recent inclusive diffractive DIS data from the H1
collaboration is presented. Diffractive parton distributions are extracted,
including their experimental and theoretical uncertainties. The parton
distributions are used for comparisons with recent diffractive final state data
from HERA and the TEVATRON.


title:
Search for time-dependent B0s - B0s-bar oscillations using a vertex
  charge dipole technique

abstract:
  We report a search for B0s - B0s-bar oscillations using a sample of 400,000
hadronic Z0 decays collected by the SLD experiment. The analysis takes
advantage of the electron beam polarization as well as information from the
hemisphere opposite that of the reconstructed B decay to tag the B production
flavor. The excellent resolution provided by the pixel CCD vertex detector is
exploited to cleanly reconstruct both B and cascade D decay vertices, and tag
the B decay flavor from the charge difference between them. We exclude the
following values of the B0s - B0s-bar oscillation frequency: Delta m_s < 4.9
ps-1 and 7.9 < Delta m_s < 10.3 ps-1 at the 95% confidence level.


title:
Status on the Searches of Neutrino Magnetic Moment at the Kuo-Sheng
  Power Reactor

abstract:
  The TEXONO collaboration has been built up among scientists from Taiwan and
China to pursue an experimental program in neutrino and astro-particle physics.
The flagship efforts have been the study of low energy neutrino physics at the
Kuo-Sheng Power Reactor Plant in Taiwan. The Reactor Laboratory is equipped
with flexibly-designed shieldings, cosmic veto systems, electronics and data
acquisition systems which can function with different detector schemes. Data
are taken during the Reactor Period June-01 till April-02 with a high purity
germanium detector and 46 kg of CsI(Tl) crystal scintillator array operating in
parallel. A threshold of 5 keV has been achieved for the germanium detector,
and the background level comparable to those of Dark Matter experiments
underground is achieved. Based on 62/46 days of analyzed Reactor ON/OFF data, a
preliminary result of $\rm{(\munue / 10^{-10} \mub)^2 = - 1.1 \pm 2.5}$ can be
derived for neutrino magnetic moment $\munue$. Sensitivity region on neutrino
radiative decay lifetime is inferred. The complete data set would include
180/60 days of ON/OFF data.


title: Rho^0 meson production in the pp ->pppi+pi- reaction at 3.67 GeV/c

abstract:
  Total and differential cross sections for the exclusive reaction pp->pp rho^0
observed via the pi+pi- decay channel have been measured at beam momentum=3.67
GeV/c. The observed total meson production cross section is determined to be
23.4 +- 0.8 +-8 microb and is significantly lower than typical cross sections
used in model calculations for heavy ion collisions. The differential cross
sections measured indicate a strong anisotropy cos^2(theta^{CM}) in the rho^0
meson production.


title: Design and Expected Performance of the BTeV RICH

abstract:
  The BTeV experiment is a b-physics experiment designed to conduct precision
tests of the CKM description of CP violation and study rare processes involving
bottom and charm hadrons. The experiment will be located in the C0 interaction
region at the Fermilab Tevatron, and is intended to begin data-taking around
2007-2008. One of the most important elements of the BTeV spectrometer is the
ring-imaging Cerenkov detector (RICH) which is used for particle
identification. In this article we describe the BTeV RICH and present its
expected performance.


title: Ultra High Precision with a Muon Storage Ring

abstract:
  The Muon $(g-2)$ experiment, E821, at the Brookhaven AGS has the goal to
measure the muon anomalous magnetic moment to a relative accuracy of $\pm 3.5
\times 10^{-7}$. A superferric 14 m diameter storage ring has been constructed
and an averaged magnetic field uniformity over the 90 mm diameter muon storage
region of $\pm$ 1 part per million (ppm) has been achieved. A truncated
double-cosine superconducting septum magnet (the inflector) was constructed
along with a fast non-ferric kicker. The performance of the storage ring, along
with the physics results are reviewed.


title: New Results on Bs Mixing from LEP

abstract:
  The phenomenology of B_s^0 oscillations is reviewed along with the
experimental strategy for observing them. Results of studies from ALEPH,
DELPHI, and OPAL experiments are summarized with an emphasis on recent new
results from ALEPH.


title:
CASTOR: Centauro and Strange Object Research in nucleus-nucleus
  collisions at LHC

abstract:
  We describe the CASTOR detector designed to probe the very forward,
baryon-rich rapidity region in nucleus-nucleus collisions at the LHC. We
present a phenomenological model describing the formation of a QGP fireball in
a high baryochemical potential environment, and its subsequent decay into
baryons and strangelets. The model explains Centauros and the long-penetrating
component and makes predictions for the LHC.
  Simulations of Centauro-type events were done. To study the response of the
apparatus to new effects different exotic species (DCC, Centauros, strangelets
etc.) were passed through the deep calorimeter. The energy deposition pattern
in the calorimeter appears to be a new clear signature of the QGP.


title:
Construction, Pattern Recognition and Performance of the CLEO III
  LiF-TEA RICH Detector

abstract:
  We briefly describe the design, construction and performance of the LiF-Tea
RICH detector built to identify charged particles in the CLEO III experiment.
Excellent pion/kaon separation is demonstrated.


title: Three-Jet Production in Deep-Inelastic Scattering

abstract:
  Three-jet production has been studied in deep-inelastic positron-proton
scattering. The measurement carried out with the H1 detector at HERA covers a
large range of four-momentum transfer squared 5 < Q^2 < 5000 GeV^2 and
invariant three-jet masses 25 < M_(3jet) < 140 GeV. Jets are defined by the
inclusive k_T algorithm in the Breit frame. The size of the three-jet cross
section and the ratio of the three-jet to the dijet cross section R_(3/2) are
described over the whole phase space by the predictions of perturbative QCD in
next-to-leading order. The shapes of angular jet distributions deviate
significantly from a uniform population of the available phase space but are
well described by the QCD calculation.


title: Strings, gravity and particle physics

abstract:
  This contribution, aimed mostly at experimental particle physicists, reviews
some of the main ideas and results of String Theory in a non-technical
language. It originates from the talks presented by the authors at the
Electro-Weak session of the 2002 Moriond Meeting, here merged in an attempt to
provide a more complete and concise view of the subject.


title: Physics Results and Future Plans of the ZEUS Experiment

abstract:
  Selected ZEUS results on the proton and the photon structures are presented.
A short outline of the future measurements, the HERA machine and the ZEUS
detector status is given.


title: A Measurement of the B0 -> J/psi pi+pi- Branching Fraction

abstract:
  We present a measurement of the branching fraction for the decay of the
neutral $B$ meson into the final state $J/\psi\pi^+\pi^-$. The data set
contains approximately 56 million $B\bar{B}$ pairs produced at the
$\Upsilon(4S)$ resonance and recorded with the BaBar detector at the PEP-II
asymmetric-energy $e^+e^-$ storage ring. The result of this analysis is
$\mathcal{B}$($B^0\to J/\psi\pi^+\pi^-$) = (4.6 $\pm$ 0.7 $\pm$ 0.6)$\times
10^{-5}$, where the first error is statistical and the second is systematic. In
addition we measure $\mathcal{B}(B^0\to J/\psi\rho^0) = (1.6 \pm 0.6 \pm 0.4
)\times 10^{-5}$.


title: Pixel Detectors for Particle Detection and Imaging Applications

abstract:
  Semiconductor pixel detectors offer features for the detection of radiation
which are interesting for particle physics detectors as well as for imaging
e.g. in biomedical applications (radiography, autoradiography, protein
crystallography) or in Xray astronomy. At the present time hybrid pixel
detectors are technologically mastered to a large extent and large scale
particle detectors are being built. Although the physical requirements are
often quite different, imaging applications are emerging and interesting
prototype results are available. Monolithic detectors, however, offer
interesting features for both fields in future applications. The state of
development of hybrid and monolithic pixel detectors, excluding CCDs, and their
different suitability for particle detection and imaging, is reviewed.


title:
Production of Single W Bosons at LEP and Measurement of WWgamma Gauge
  Coupling Parameters

abstract:
  Single W boson production in electron-positron collisions is studied with the
L3 detector at centre-of-mass energies between 192 GeV and 209 GeV. Events with
two acoplanar hadronic jets or a single energetic lepton are selected, and the
single W cross section is measured. Combining the results with measurements at
lower centre-of-mass energies, the ratio of the measured cross section to the
Standard Model expectation is found to be 1.12^{+0.11}_{-0.10}+/-0.03. From all
single W data, the WWgamma gauge coupling parameter kappa_gamma is measured to
be 1.116^{+0.082}_{-0.086}+/-0.068.


title: Measurement of Bose-Einstein Correlations in e+e- -> W+W- Events at LEP

abstract:
  Bose-Einstein correlations in W-pair production at LEP are investigated in a
data sample of 629 pb^-1 collected by the L3 detector at centre-of-mass
energies of 189-209 GeV. Bose-Einstein correlations between pions within a W
decay are observed and found to be in good agreement with those in light-quark
Z decay. No evidence is found for Bose-Einstein correlations between hadrons
coming from different W's in the same event.


title: An Overview of SLAC Experiment E158

abstract: Overview of SLAC Experiment E158 May-June 2002 run


title: Evidence for Quark-Hadron Duality in the Proton Spin Asymmetry $A_1$

abstract:
  Spin-dependent lepton-nucleon scattering data have been used to investigate
the validity of the concept of quark-hadron duality for the spin asymmetry
$A_1$. Longitudinally polarised positrons were scattered off a longitudinally
polarised hydrogen target for values of $Q^2$ between 1.2 and 12 GeV$^2$ and
values of $W^2$ between 1 and 4 GeV$^2$. The average double-spin asymmetry in
the nucleon resonance region is found to agree with that measured in
deep-inelastic scattering at the same values of the Bjorken scaling variable
$x$. This finding implies that the description of $A_1$ in terms of quark
degrees of freedom is valid also in the nucleon resonance region for values of
$Q^2$ above 1.6 GeV$^2$.


title: Short Baseline Accelerator-Based Neutrino Oscillation Searches

abstract:
  We review the status of the search for neutrino oscillations in the short
baseline regime with experiments at accelerators. The evidence for
numubar->nuebar from the LSND experiment is compared with the negative results
of the KARMEN numubar->nuebar search and with the results from NOMAD and NuTeV
in the same flavor mixing channel. We describe the upcoming MiniBooNE
experiment which should be sufficiently sensitive to unambiguously confirm or
completely rule out the LSND signal.


title: Two RICH Detectors as Velocity Spectrometers in the CKM Experiment

abstract:
  We present the design of two velocity spectrometers, to be used in the
recently approved CKM experiment. CKM's main goal is the measurement of the
branching ratio of K+ -> pi+ nu nu with a precision of 10%, via decays in
flight of the K+. The design of both RICH detectors is based on the SELEX
Phototube RICH. We will discuss the design and the expected performance, based
on studies with SELEX data and Monte Carlo Simulations.


title: Higgs Search Results

abstract:
  This paper shortly reports on the results of Higgs boson searches performed
at LEP and Tevatron. No signal is found and limits on the mass and couplings of
the Higgs boson are derived. Interpreting the data in the framework of the
Standard Model, the 95% C.L. lower limit of 114.4 GeV on the Higgs boson mass
is obtained.


title: alpha_S and Power Corrections from JADE

abstract:
  Re-analysed JADE data were used to determine alpha_S at sqrt{s} = 14-44 GeV
on the basis of resummed calculations for event shapes and hadronisation models
tuned to LEP data. The combined result is alpha_S(M_Z) = 0.1194 +/-
0.0082/0.0068 which is consistent with the world average. Event shapes have
also been used to test power corrections based on an analytical model and to
verify the gauge structure of QCD. The only non-perturbative parameter alpha_0
of the model was measured to alpha_0(2GeV) = 0.503 +/- 0.066/0.045 and is found
to be universal within the total errors.


title: The topologies of Supersymmetry signals at LEP

abstract:
  The topologies arising from the production of supersymmetric particles at the
LEP collider are briefly reviewed recalling detector requirements, simulation
and other experimental issues.


title:
Measurement of the lepton energy in the decay B-bar -> X l nu-bar and
  determination of the Heavy Quark Expansion Parameters

abstract:
  We measured two moments of the lepton momentum spectrum in B -> X l nu, where
l= e or mu, for p_l > 1.5 GeV/c. From these we derive the Heavy Quark Expansion
(HQE) parameters Lambda-bar(MS-bar) = 0.39 +- 0.03(stat) +- 0.06(sys) +-
0.12(th) GeV and lambda_1 = -0.25 +- 0.02(stat) +- 0.05(sys) +- 0.14(th) GeV^2,
through order 1/M_B^3 in the non-perturbative expansion and beta_0 alpha_s^2 in
the perturbative expansion. The theoretical expression needed to extract |V_cb|
from the measured semileptonic width is evaluated using these HQE parameters.
Combined with the world average of the semileptonic width, we find |V_cb|=(40.8
+- 0.5(Gamma_sl) +- 0.4(lambda_1,Lambda-bar) +- 0.9(th)) 10^{-3}. Finally, the
short range b-quark mass m_b(1S) is evaluated and found to be 4.82 +- 0.07(exp)
+- 0.11(th) GeV/c^2.


title: tau- -> K+ K- pi- nu_tau at CLEO III

abstract:
  Based on 3.26 fb$^{-1}$ data sample collected at CLEO III, we study the decay
$\tau^-\to K^+K^-\pi^-\nu_\tau$, and improve the measurement of the branching
ratio ${\cal B}(\tau^-\to K^+K^-\pi^-\nu_\tau)=
(1.59\pm0.06\pm0.13)\times10^{-3}$, the results are preliminary.


title: Search for Scalar Top and Scalar Bottom Quarks at LEP

abstract:
  Searches for a scalar top quark and a scalar bottom quark have been performed
using a data sample of 438 pb-1 at centre-of-mass energies of sqrt(s) = 192 -
209 GeV collected with the OPAL detector at LEP. No evidence for a signal was
found. The 95% confidence level lower limit on the scalar top quark mass is
97.6 GeV if the mixing angle between the supersymmetric partners of the left-
and right-handed states of the top quark is zero. When the scalar top quark
decouples from the Z0 boson, the lower limit is 95.7 GeV. These limits were
obtained assuming that the scalar top quark decays into a charm quark and the
lightest neutralino, and that the mass difference between the scalar top quark
and the lightest neutralino is larger than 10 GeV. The complementary decay mode
of the scalar top quark decaying into a bottom quark, a charged lepton and a
scalar neutrino has also been studied. The lower limit on the scalar top quark
mass is 93.0 GeV for this decay mode, if the mass difference between the scalar
top quark and the scalar neutrino is greater than 10 GeV and if the mixing
angle of the scalar top quark is zero. From a search for the scalar bottom
quark, a mass limit of 96.6 GeV was obtained if the mass difference between the
scalar bottom quark and the lightest neutralino is larger than 10 GeV.


title: The CDFII Time-Of-Flight Detector and Impact on Beauty Flavor Tagging

abstract:
  The new CDFII detector incorporates a Time-of-Flight detector (TOF),
employing plastic scintillator bars and fine-mesh photomultipliers. Since
August 2001 the TOF system has been fully instrumented and integrated into the
CDFII data acquisition system. With a design goal of $100 ps$ resolution the
TOF system will provide at least two standard deviations separation between
$K^{\pm}$ and $\pi^{\pm}$ for momenta $p<1.6 GeV/c$, complementing low momentum
particle identification by means of the specific ionization energy loss
measured in the drift chamber. We describe the design of the TOF detector and
discuss the current status of its calibration and initial performances. Finally
we review the expected impact of the TOF detector in the flavor tagging of
neutral $B_S$ meson.


title: Search for Supernova Relic Neutrinos at Super-Kamiokande

abstract:
  A search for the relic neutrinos from all past core-collapse supernovae was
conducted using 1496 days of data from the Super-Kamiokande detector. This
analysis looked for electron-type anti-neutrinos that had produced a positron
with an energy greater than 18 MeV. In the absence of a signal, 90% C.L. upper
limits on the total flux were set for several theoretical models; these limits
ranged from 20 to 130 nu_e bar cm^-2 s^-1. Additionally, an upper bound of 1.2
nu_e bar cm^-2 s^-1 was set for the supernova relic neutrino flux in the energy
region E_nu > 19.3 MeV.


title:
A new approach to the study of high energy muon bundles with the MACRO
  detector at Gran Sasso

abstract:
  The MACRO experiment detected more than 300000 multiple muon events. We
analysed these events to measure the distribution of the separation of
underground TeV muons (decoherence function), up to a distance of 70 meters. On
a subsample of very high multiplicity events, we performed two independent
analyses, based on the study of the spatial structure of the bundles. Both the
analyses revealed a correlation between the topology of the bundles and the
dynamics of the shower development in atmosphere. These results have been used
to constrain and disentangle the primary composition and the hadronic
interaction models used by different shower propagation codes
(HEMAS-DPM/CORSIKA).


title:
Search for a W' Boson Decaying to a Top and Bottom Quark Pair in 1.8 TeV
  p-pbar Collisions

abstract:
  We report the results of a search for a W' boson produced in p-pbar
collisions at a center-of-mass energy of 1.8 TeV using a 106 pb-1 data sample
recorded by the Collider Detector at Fermilab. We observe no significant excess
of events above background for a W' boson decaying to a top and bottom quark
pair, with the top quark subsequently decaying into a semileptonic final state.
These data allow us to set limits on the rate of W' boson production and decay.
In a model where this boson would mediate interactions involving a massive
right-handed neutrino (nu_R) and has Standard Model strength couplings, we
exclude a W' boson with mass between 225 and 536 GeV/c**2 at 95% confidence
level for M_W' >> M_nu_R and between 225 and 566 GeV/c**2 at 95% confidence
level for M_W' < M_nu_R.


title: J/psi Radiative Decays

abstract:
  The previous results of J/psi radiative decays from MARKIII, DM2, Crystal
Ball and BESI are briefly reviewed in this talk. The main part of this talk
focuses on presenting the recent results from BESII 58 million J/psi data,
including the Partial Wave Analysis (PWA) results, the measurement of eta_c
mass, as well as search for some interesting states.


title: Neutrino Physics and Astronomy with MACRO

abstract:
  MACRO experiment operated in the Gran Sasso underground laboratory. Neutrino
events collected by this detector are used in order to study the atmospheric
neutrino flux. Different measurements in different energy samples are in full
agreement and show evidence of neutrino oscillation phenomenon. Also the search
for neutrino astrophysical sources is reported.


title: Recent Advances in Charm Physics

abstract:
  New results from charm experiments have led to renewed interest in this
physics. The charm sector is now seen as a powerful tool to search for new
physics and to advance our understanding of the standard model. We owe much of
this progress to the combination of precision vertexing and large data samples
collected by recent e+e- and fixed target experiments. Sensitivities to
D0-D0bar mixing and CP violation are approaching some non-standard model
predictions. Recent measurements of charmed particle lifetimes and semileptonic
decays have added to our understanding of decay mechanisms and the dynamics of
heavy-to-light quark transitions. Many of these provide vital input to QCD
models and are an essential ingredient in extracting standard model parameters
from other measurements. Studies of charmonium production continue to offer new
surprises. A recent measurement from Belle indicates that ~60% of J/psi events
produced in continuum e+e- collisions are produced with an additional charm
quark pair. Fueled by new data from a host of continuing and future
experiments, we can expect significant improvement to the standard model and
possibly some new surprises.


title: Probing Physics Beyond the SM at Tevatron

abstract:
  Tevatron Experiments: CDF and D$\not$O collected during October 1992 and
February 1996 (Run I) a data sample of roughly 120 $pb^{-1}$ $ p \bar{p}$
collisions at a center of mass energy $\sqrt{s}=$ 1.8 TeV. A large variety of
physical studies have been performed using these data. Current paper reviews
last results obtained searching for physics beyond the Standard Model. Direct
Supersymmetry (SUSY) searches are not part of this review.


title: Transverse Spin: HERMES Results and Future Plans

abstract:
  Results from the HERMES experiment are presented on single-spin asymmetries
in semi-inclusive hadron production from longitudinally polarized targets. The
data are compared with a number of theoretical calculations which relate the
azimuthal dependence of the asymmetries to the transversity structure function
h_1(x).


title: Atmospheric and Long Baseline Neutrino

abstract:
  This paper presents the recent results from Super-Kamiokande atmospheric
neutrinos and from K2K accelerator neutrinos. Both results show the signal of
neutrino oscillation, and provide new and precise information of oscillation
parameters. The oscillation parameters are constraint to be between 1.5*10^{-3}
eV^2 and 3.9*10^{-3} eV^2 for \Delta m^2 and to be greater than 0.92 for sin^2
2\theta.


title: Penguin Mediated B Decays at BABAR

abstract:
  We report on preliminary results of searches for penguin mediated B decays
based on 20.7 fb^{-1} of data collected at the Y(4S) peak with the BABAR
detector at PEP-II. The following branching fractions have been measured: BR(B+
--> phi K+) = (7.7^{+1.6}_{-1.4} +- 0.8)*10^{-6}, BR(B0 --> phi K0) =
(8.1^{+3.1}_{-2.5} +- 0.8)*10^{-6}, BR(B+ --> phi K*+) = (9.7^{+4.2}_{-3.4} +-
1.7)*10^{-6}, BR(B0 --> phi K*0) = (8.7^{+2.5}_{-2.1} +- 1.1)*10^{-6}, BR(B+-->
omega pi+) = (6.6^{+2.1}_{-1.8} +- 0.7)*10^{-6}, BR(B --> eta K^*0) =
(19.8^{+6.5}_{-5.6} +-1.7)*10^{-6}, where the first error is statistical and
the second systematic. For several other modes we report upper limits on their
branching fractions; for example for the following flavor-changing neutral
current decays, BR(B--> K l+ l-) < 0.6*10^{-6}, BR(B--> K* l+ l-) <
2.5*10^{-6}, at 90% Confidence Level (C.L.).


title:
Measurements of Compton Scattered Transition Radiation at High Lorentz
  Factors

abstract:
  X-ray transition radiation can be used to measure the Lorentz factor of
relativistic particles. Standard transition radiation detectors (TRDs)
typically incorporate thin plastic foil radiators and gas-filled x-ray
detectors, and are sensitive up to \gamma ~ 10^4. To reach higher Lorentz
factors (up to \gamma ~ 10^5), thicker, denser radiators can be used, which
consequently produce x-rays of harder energies (>100 keV). At these energies,
scintillator detectors are more efficient in detecting the hard x-rays, and
Compton scattering of the x-rays out of the path of the particle becomes an
important effect. The Compton scattering can be utilized to separate the
transition radiation from the ionization background spatially. The use of
conducting metal foils is predicted to yield enhanced signals compared to
standard nonconducting plastic foils of the same dimensions. We have designed
and built a Compton Scatter TRD optimized for high Lorentz factors and exposed
it to high energy electrons at the CERN SPS. We present the results of the
accelerator tests and comparisons to simulations, demonstrating 1) the
effectiveness of the Compton Scatter TRD approach; 2) the performance of
conducting aluminum foils; and 3) the ability of a TRD to measure energies
approximately an order of magnitude higher than previously used in very high
energy cosmic ray studies.


title:
On the application of "Z0+jet" events for setting the absolute jet
  energy scale and determining the gluon distribution in a proton at the LHC

abstract:
  A possibility of jet energy scale setting by help of ``p p -> Z0+jet+X''
process at LHC is studied. The effect of new set of cuts, proposed in our
previous works, on the improvement of the Pt balance between Z0 boson and jet
is demonstrated. The distributions of the selected events over Z0 transverse
momentum and jet pseudorapidity are presented. A possibility of background
events suppression by use of the "Z0+jet" events selection criteria is shown.
  It is also found that the samples of "Z0+jet" events, gained with the cuts
for the jet energy calibration, may have enough statistics for determining the
gluon distribution inside a proton in the region of 2*10^{-4} < x < 1.0$ with
0.9*10^3 < Q^2 < 4*10^4 (GeV/c)^2.
  Monte Carlo events produced by the PYTHIA 5.7 generator are used here.


title: Single Photon X-Ray Imaging with Si- and CdTe-Sensors

abstract:
  Studies of a single photon counting hybrid pixel detector for X-ray imaging
applications are presented. A silicon- and a CdTe-sensor were bump bonded onto
the MPEC pixel readout chip and could be successfully operated. A new USB based
readout system was used for data acquisition. Measurements of the performance
on the latest MPEC chip and imaging characterization of the sensors are
presented.


title:
Identification problems of muon and electron events in the
  Super-Kamiokande detector

abstract:
  In the measurement of atmospheric nu_e and nu_mu fluxes, the calculations of
the Super Kamiokande group for the distinction between muon-like and
electronlike events observed in the water Cerenkov detector have initially
assumed a misidentification probability of less than 1 % and later 2 % for the
sub-GeV range. In the multi-GeV range, they compared only the observed
behaviors of ring patterns of muon and electron events, and claimed a 3 %
mis-identification. However, the expressions and the calculation method do not
include the fluctuation properties due to the stochastic nature of the
processes which determine the expected number of photoelectrons (p.e.) produced
by muons and electrons. Our full Monte Carlo (MC) simulations including the
fluctuations of photoelectron production show that the total mis-identification
rate for electrons and muons should be larger than or equal to 20 % for sub-GeV
region. Even in the multi-GeV region we expect a mis-identification rate of
several % based on our MC simulations taking into account the ring patterns.
The mis-identified events are mostly of muonic origin.


title: CP and CPT Studies with Kaons

abstract:
  Three European experiments are engaged at present in the study of CP
violation in the kaon system. In particular, NA48/1 and KLOE are concerned with
the K-short decaying into three pions, while NA48/2 and KLOE study the charged
kaon decaying into three pions' Dalitz plot asymmetries. I will discuss the
physics involved as well as summarize the anticipated sensitivies which can be
achieved by the experiments.


title: Elementary Hadronic Interactions at the CERN SPS

abstract:
  New data from the NA49 experiment at the CERN SPS concerning hadron+proton
and hadron+nucleus interactions are discussed and compared to nucleus+nucleus
collisions. Detailed information on baryonic momentum distributions and nuclear
enhancement factors for kaons and cascade baryons are extracted.


title: MSSM Higgs searches with tau lepton final states in CMS

abstract:
  The present understanding of large mass MSSM Higgs sector is reviewed. The
most profitable channels: A/H $\to \tau \tau$ and $H^{\pm} \to \tau \nu$ are
considered; a glimpse of the trigger chain studied for events with tau lepton
final states is presented. The MSSM Higgs discovery reach of the
general-purpouse experiment CMS is summarised.


title: A measurement of the tau to mu nu nu branching ratio

abstract:
  The tau -> mu nu nu branching ratio has been measured using data collected
from 1990 to 1995 by the OPAL detector at the LEP collider. The resulting value
of B(tau->mu nu nu) = 0.1734 +/- 0.0009(stat) +/- 0.0005(syst) has been used in
conjunction with other OPAL measurements to test lepton universality, yielding
the coupling constant ratios g(mu)/g(e) = 1.0005 +/- 0.0043 and g(tau)/g(e) =
1.0031 +/- 0.0047, in good agreement with the Standard Model prediction of
unity, and also to determine a value for the Michel parameter eta = 0.004 +/-
0.036. This is subsequently used to find a model-dependent limit of the mass
for the charged Higgs boson, m(Higgs) > 1.30 tan(beta), in the Minimal
Supersymmetric Standard Model.


title: QCD Studies at HERA

abstract:
  I present a small selection of the many QCD studies that have been performed
at HERA. I concentrate on results that have been made available in the past
year. Results are presented on the QCD description of the parton density
functions, determinations of alpha_S, jets and heavy flavour production. Where
possible comparisons are made with next to leading order (NLO) QCD predictions.
The neutral and charged current cross sections at very high Q^2 are also
discussed.


title: The Status of the COMPASS Experiment

abstract:
  One of the important goals of the COMPASS experiment is the determination of
the gluonic contribution to the spin of the nucleon. By using the photon gluon
fusion (PGF) process in polarised deep inelastic scattering direct access to
the gluon polarisation can be obtained. The PGF is selected via the detection
of open charm or high $p_T$ hadron pairs. In 2001 a large part of the
experiment had been setup and during a two weeks period first data was taken.
In this paper some achievements of the run in 2001 are presented together with
first preliminary analysis results.


title:
Charged Particle Momentum Spectra in e+e- annihilation at sqrt(s) =
  192-209 GeV

abstract:
  Charged particle momentum distributions are studied in the reaction e+e- ->
hadrons, using data collected with the OPAL detector at centre-of-mass energies
from 192 GeV to 209 GeV. The data correspond to an average centre-of- mass
energy of 201.7 GeV and a total integrated luminosity of 433 pb-1. The measured
distributions and derived quantities, in combination with corresponding results
obtained at lower centre-of-mass energies, are compared to QCD predictions in
various theoretical approaches to study the energy dependence of the strong
interaction and to test QCD as the theory describing it. In general, a good
agreement is found between the measurements and the corresponding QCD
predictions.


title: Latest measurements of beauty quark production at HERA

abstract:
  The latest results of beauty quark production measurements at HERA are
presented. New measurements have been obtained both in the photoproduction and
the deep inelastic scattering regimes. The results were compared with the NLO
QCD calculations.


title:
Development of a Hybrid Photo-Diode and its Front-End Electronics for
  the BTEV Experiment

abstract:
  This paper describes the development of a 163-channel Hybrid Photo-Diode
(HPD) to be used in the RICH Detector for the BTEV Experiment. This is a joint
development project with DEP, Netherlands. It also reports on the development
of associated front-end readout electronics based on the va_btev ASIC,
undertaken with IDEAS, Norway. Results from bench tests of the first prototypes
are presented.


title: High-p_T pi^0 suppression in Au+Au collisions at sqrt(s_NN) = 200 GeV

abstract:
  Neutral pions with p_T = 1 - 8 GeV/c have been measured for 9 different
centrality classes in Au+Au collisions at sqrt(s_NN) = 200 GeV by the PHENIX
experiment at RHIC. The pi^0 multiplicity in central reactions is significantly
below the binary collision scaled yields from both peripheral Au+Au and pp
reactions. The observed suppression sets in for the 50-70% centrality class and
increases with p_T and centrality. For the most central bin, the deficit
amounts to a factor ~2.5 at p_T ~ 2 GeV/c gradually increasing to a factor ~6
at p_T ~ 8 GeV/c.


title:
Measurement of the Cross-Section for the Process GammaGamma -> Ppbar at
  sqrt(s)_ee=183-189 GeV at LEP

abstract:
  The exclusive production of proton-antiproton pairs in the collisions of two
quasi-real photons had been studied using data taken at sqrt(s)_ee=183 GeV and
189 GeV with the OPAL detector at LEP. Results are presented for Ppbar
invariant masses, W, in the range 2.15 W< <3.95 GeV. The cross-section
measurements are compared with previous data and with recent analytic
calculations based on the quark-diquark model.


title: Future projects on atmospheric neutrinos

abstract:
  New results from Super-Kamiokande, K2K and SNO not only have spurred on the
interest in neutrino oscillation physics, but also have started to shift the
interest from discovery to precision measurements. Future projects focusing on
atmospheric neutrinos are reviewed in this context. Important contributions
could be made in the precision determination of the oscillation parameters, in
the observation of matter effects and in the determination of the neutrino mass
hierarchy. Unfortunately, the probability that the projects discussed in this
review will be running in the next ten years is rather small. The only project
with a shorter time scale has not been funded.


title: The "miniskirt" counter array at CDF-II

abstract:
  As a part of the CDF Upgrade for Run-II of the Tevatron collider, the
azimuthal coverage of the muon detectors between pseudorapidities of 0.6 and
1.2 was completed by the insertion of stacks of drift chambers and
scintillation counters, which came to be known as the "miniskirts" because they
cover lower 90^o in azimuth.
  The design and construction of the miniskirts was rather complex and posed
special problems because of its interference with the floor and the supports of
the central detector. The original design parameters of the "miniskirt"
scintillator counters for the CDF Muon System are presented and the
modifications, testing and installation of these counters in the course of the
CDF Upgrade Project are described in detail


title:
Precision Measurement of Energy and Position Resolutions of the BTeV
  Electromagnetic Calorimeter Prototype

abstract:
  The energy dependence of the energy and position resolutions of the
electromagnetic calorimeter prototype made of lead tungstate crystals produced
in Bogoroditsk (Russia) and Shanghai (China) is presented. These
measurementswere carried out at the Protvino accelerator using a 1 to 45 GeV
electron beam. The crystals were coupled to photomultiplier tubes. The
dependence of energy and position resolutions on different factors as well as
the measured electromagnetic shower lateral profile are presented.


title: Solar Neutrinos

abstract:
  Present results and future measurements of solar neutrinos are discussed. The
results to date indicate that solar electron neutrinos are changing to other
active types and that transitions solely to sterile neutrinos are disfavored.
  The flux of $^{8}B$ solar neutrinos produced in the Sun, inferred assuming
only active neutrino types, is found to be in very good agreement with solar
model calculations.
  Future measurements will focus on greater accuracy for charged current and
neutral current sensitive reactions to provide more accurate measurements of
neutrino flavour change and further studies of day-night flux differences and
spectral shape. Other experiments sensitive to lower energy solar neutrinos
will be in operation soon.


title: Four-fermion final states in e+e- collisions at LEP2

abstract:
  The measurements of four-fermion production rates performed at LEP2 in e+e-
collisions at centre-of-mass energies ranging from 161 to 209 GeV are
presented. The focus is put on processes that involve the production and decay
of W or Z electroweak bosons. Results on W decay rates and couplings are also
discussed.


title:
A novel current mode operating beam counter based on not preamplified
  HPDs

abstract:
  A novel system to monitor the intensity and the stability of a bunched beam
of $\simeq 1.2\times 10^{7}$ antiprotons ($\bar{p}$s) with a length of $\simeq$
250 ns (FWHM) and to measure its trapping efficiency in a Penning trap is
described. This system operates parasitically detecting the pions from the
annihilation of part of the beam in a degrader. Six plastic scintillators have
been coupled from one side to six proximity focused HPDs without preamplifiers
and operating in current mode. This device works in the stray field of the
ATHENA magnet with no loss of efficiency; the gain can be varied from zero to a
few thousands with a precision better than 0.1% and the dynamic range is larger
than 8 orders of magnitude. Linearity and stability have been measured up to
charge responses of 100 nC, corresponding to the beam completely dumped. The
beam counter has been calibrated in two different and independent ways giving
consistent results.


title: Physics at a Photon Collider

abstract:
  A Photon Collider will provide unique opportunities to study the SM Higgs
boson and to determine its properties. MSSM Higgs bosons can be discovered at
the Photon Collider for scenarios where they might escape detection at the LHC.
As an example for the many other physics topics which can be studied at a
Photon Collider, recent results on Non-Commutative Field Theories are also
discussed.


title: Large bulk matter search for fractional charge particles

abstract:
  We have carried out the largest search for stable particles with fractional
electric charge, based on an oil drop method that incorporates a horizontal
electric field and upward air flow. No evidence for such particles was found,
giving a 95% C.L. upper limit of $1.15\times 10^{-22}$ particles per nucleon on
the abundance of fractional charge particles in silicone oil for $0.18 e \le
|Q_{residual}| \le 0.82 e$.


title: Top and Higgs Physics at the Tevatron

abstract:
  We present a summary of our experimental understanding of the top quark and
discuss the significant improvements expected in Run II at the Fermilab
Tevatron Collider. We also discuss prospects for a Higgs boson discovery at the
Tevatron.


title: Prospects for R Measurement at BaBar using Radiative Return

abstract:
  A precise measurement of the ratio of hadron to muon production in e^+e^-
collisions, denoted by R(s), is a necessary input for the interpretation of
current precision electroweak measurements. We describe a method for measuring
R(s) with the BaBar detector at the PEP-II B-factory using initial-state
radiation events.


title: BaBar Level 1 Drift Chamber Trigger Upgrade

abstract:
  As PEP-II is exceeding the original design luminosity, BaBar is currently
upgrading its Level 1 Drift Chamber Trigger (DCT) to reduce the rate of
background Level 1 triggers by more than 50% while preserving the high Level 1
trigger physics efficiency. New Z-Pt-Discriminator VME boards (ZPD) utilizing
the stereo hit information from the drift chamber are being built to extract
the track z coordinate at the beam line with a resolution of a few centimeters.


title: The final measurement of $\epsilon'\epsilon$ by NA48

abstract:
  The direct CP violation parameter Re($\epsilon'\epsilon$) has been measured
from the decay rates of neutral kaons into two pions using the NA48 detector at
the CERN SPS. The 2001 running period was devoted to collecting additional data
under varied conditions compared to earlier years (1997-99). The 2001 data
yield the result: Re($\epsilon\epsilon'$)=$(13.7\pm3.1)\times10^{-4}$.
Combining this result with that published from the 1997,98 and 99 data, an
overall value of Re($\epsilon'\epsilon$)=$(14.7\pm2.2)\times10^{-4}$ is
obtained from the NA48 experiment.


title: Probing Beyond Standard Model Physics with Elelctroweak Penguin B Decays

abstract:
  Latest experimental progress is reviewed on the searches for physics beyond
the Standard Model using the radiative and electroweak penguin decays of B
mesons. This review covers inclusive and exclusive measurements of the b --> s
gamma, b --> d gamma and b --> s l+ l- processes, including the first
observation of B --> K l+ l- and the first attempt to measure the inclusive B
--> X(s) l+ l- branching fraction.


title: Search for anomalous weak dipole moments of the tau lepton

abstract:
  The anomalous weak dipole moments of the tau lepton are measured in a data
sample collected by ALEPHfrom 1990 to 1995 corresponding to an integrated
luminosity of 155pb-1. Tau leptons produced in the reaction e+e- -> tau+tau- at
energies close to the Z mass are studied using their semileptonic decays to pi,
rho, a_1 -> pi 2pi0 or a_1 -> 3 pi. The real and imaginary components of both
the anomalous weak magnetic dipole moment and the CP-violating anomalous weak
electric dipole moment, Re,mu_tau, Im,mu_tau, Re, d_tau and Im, d_tau, are
measured simultaneously by means of a likelihood fit built from the full
differential cross section. No evidence of new physics is found. The following
bounds are obtained 95% CL: |Re, mu_tau | < 1.14 x 10-3, |Im}, mu_tau | < 2.65
x 10-3, |Re}, d_tau | < 0.91 x 10-3, and |Im, d_tau | < 2.01 x 10-3.


title: Limits on $\nu_{\tau}$ mass by DELPHI

abstract:
  A limit on the tau neutrino mass is obtained using all the $Z^{0} \to
\tau^{+} \tau^{-}$ data collected at LEP by the DELPHI detector between 1992
and 1995. In this analysis events in which one of the taus decays into one
charged particle, while the second $\tau$ decays into f{}ive charged pions (1-5
topology) have been used. The neutrino mass is determined from a bidimensional
\fit ~on the invariant mass $m^{*}_{5 \pi}$ and on the energy $E_{5 \pi}$ of
the f{}ive $\pi^{\pm}$ system. The result found is $m_{\nu_{\tau}}<$ 48.0
MeV/$c^{2}$ at 95% conf{}idence level.


title:
Search for a low mass CP-odd Higgs boson in e+e- collisions with the
  OPAL detector at LEP2

abstract:
  We have analysed the data collected by OPAL at centre-of-mass energies
between 189 and 209 GeV searching for Higgs boson candidates from the process
e+e- -> h0Z0 followed by the decay of h0 -> A0A0 where A0 is the CP-odd Higgs
boson. The search is done in the region where the A0 mass, mA, is below the
production threshold for bbbar, and the CP-even Higgs boson mass mh is within
the range 45-86 GeV/c^2. In this kinematic range, the decay of h0 -> A0A0 may
be dominant and previous Higgs boson searches have very small sensitivities.
This search can be interpreted within any model that predicts the existence of
at least one scalar and one pseudoscalar Higgs boson. No excess of events is
observed above the expected Standard Model backgrounds. Model-independent
limits on the cross-section for the process e+e- -> h0Z0 are derived assuming
100% decays of the h0 into A0A0 and 100% decays of the A0A0 into each of the
following final states: ccbarccbar, gggg, tau+tau-tau+tau-, ccbargg ggtau+tau-
and ccbartau+tau-. The results are also interpreted in the CP-conserving
no-mixing MSSM scenario, where the region 45 <= mh <= 85 GeV/c^2 and 2<= mA <=
9.5 GeV/c^2 is excluded.


title: Radiative phi decays

abstract:
  Radiative phi decays give us an excellent opportunity to study scalar and
pseudoscalar meson below 1 GeV. In this paper, results from different
experiments are reviewed and compared.


title: Measurements of $\alpha_s$ from event shapes and the four-jet rate

abstract:
  New results from measurements of the strong coupling constant $\alpha_s(M_Z)$
at LEP are presented. In particular, a new LEP combination of results based on
event-shape variables has become available, where a new method for the
estimation of the theoretical uncertainty has been implemented. Furthermore,
two other analyses are quoted, based on power corrections and the four-jet
rate.


title:
Measurement of B mixing Frequency and CP Violation parameter sin2beta at
  B factory experiments

abstract:
  Recent results on B mixing and CP violation from the B-factory experiments,
BABAR and Belle are summarized.


title:
The Q^2-Dependence of Nuclear Transparency for Exclusive $\rho^0$
  Production

abstract:
  Exclusive coherent and incoherent electroproduction of the $\rho^0$ meson
from $^1$H and $^{14}$N targets has been studied at the HERMES experiment as a
function of coherence length ($l_c$), corresponding to the lifetime of hadronic
fluctuations of the virtual photon, and squared four-momentum of the virtual
photon ($-Q^2$). The ratio of $^{14}$N to $^1$H cross sections per nucleon,
known as nuclear transparency, was found to increase (decrease) with increasing
coherence length for coherent (incoherent) $\rho^0$ electroproduction. For
fixed coherence length, a rise of nuclear transparency with $Q^2$ is observed
for both coherent and incoherent $\rho^0$ production, which is in agreement
with theoretical calculations of color transparency.


title: Jet measurements at DO using a KT algorithm

abstract:
  DO has implemented and calibrated a KT jet algorithm for the first time in a
ppbar collider. We present two results based on 1992-1996 data which were
recently published: the subjet multiplicity in quark and gluon jets and the
central inclusive jet cross section. The measured ratio between subjet
multiplicities in gluon and quark jets is consistent with theoretical
predictions and previous experimental values. NLO pQCD predictions of the KT
inclusive jet cross section agree with the DO measurement, although marginally
in the low pT range. We also present a preliminary measurement of thrust cross
sections, which indicates the need to include higher than alpha_s^3 terms and
resumation in the theoretical calculations.


title: Readout Concepts for DEPFET Pixel Arrays

abstract:
  Field effect transistors embedded into a depleted silicon bulk (DEPFETs) can
be used as the first amplifying element for the detection of small signal
charges deposited in the bulk by ionizing particles, X-ray photons or visible
light. Very good noise performance at room temperature due to the low
capacitance of the collecting electrode has been demonstrated. Regular two
dimensional arrangements of DEPFETs can be read out by turning on individual
rows and reading currents or voltages in the columns. Such arrangements allow
the fast, low power readout of larger arrays with the possibility of random
access to selected pixels. In this paper, different readout concepts are
discussed as they are required for arrays with incomplete or complete clear and
for readout at the source or the drain. Examples of VLSI chips for the steering
of the gate and clear rows and for reading out the columns are presented.


title: First Observation of a Family of Double-Charm Baryons

abstract:
  The SELEX experiment (E781) at Fermilab has candidates for high mass states
decaying to Lambda_c+ K- pi+ and Lambda_c+ K- pi+ pi+, Cabibbo-allowed decay
modes of doubly-charmed baryons Xi_cc+ and Xi_cc++. The masses are consistent
with theoretical considerations, but the spectroscopy is surprising. Limited
lifetime information suggests that tau_{Xi_cc++} \sim tau_{Xi_cc+}.