title: Strangeness Production in Heavy Ion Collisions at SPS Energies

abstract:
  The NA49 collaboration has taken data of central Pb-Pb collisions at beam
energies from 20 to 158 GeV per nucleon. The large acceptance of the detector
allows to study particle yields in full phase space. In this paper we present
recent results on strangeness production (K, $\Lambda$ and $\phi$) in this
energy range and compare to measurements at lower and higher energies. The
K$^+/\pi^+$ and $\Lambda/\pi$ ratio shows a pronounced maximum around 30
A$\cdot$GeV, whereas the K$^-/\pi^-$ and $\bar{\Lambda}/\pi$ ratio exhibits a
continuous rise. The $\phi/\pi$ ratio also increases monotonically with beam
energy. First results on multi-strange hyperon production at lower SPS energies
are presented.


title: QCD at LEP

abstract:
  Several preliminary QCD results from e+e- interactions at LEP are reported.
These include studies of event shape variables, which are used to determine
alpha_s and for studies of the validity of power corrections. Further, a study
of color reconnection effects in 3-jet Z decays is reported.


title:
Measurement of the hadronic cross section at DAPHNE with the KLOE
  detector

abstract:
  We have measured the cross section sigma(e+e- \to pi+pi-gamma) as a function
of the pi+pi- invariant mass, M_pipi, with the KLOE detector at DAPHNE
(W=m_phi=1.02GeV). The photon in the above process is due to Initial State
Radiation. Dividing by a theoretical radiator function we obtain the cross
section sigma(e+e- \to pi+pi-) for the mass range 0.37<M_pipi^2<0.93GeV^2. We
extract the pion form factor and the hadronic contribution to the muon anomaly,
a_mu.


title: A new evaluation of the pion weak form factors

abstract:
  We have used the PIBETA large acceptance detector for a precise measurement
of the $\pi^+ \to e^+\nu\gamma$ radiative decay at rest, with broad phase space
coverage. Using the CVC value for the pion vector form factor, $F_V =
0.0259(5)$, we have obtained a new value of the pion axial-vector form factor
$\gamma = F_A/F_V = 0.429(14)$. However, significant deviations from the SM
predictions are evident in our data. The discrepancy can be accounted for by
introducing a pion tensor form factor of $F_T = -0.0016(3)$. The question of
the true nature of the observed deviations remains open pending further
theoretical and experimental study.


title: Searches for New Physics in Photonic Final States at LEP

abstract:
  A brief review of searches for physics beyond the Standard Model in photonic
final states at LEP is given here. These include searches for supersymmetry,
large extra dimensions and contact interactions. Recent results from all four
LEP experiments are presented, including improved limits on the new scale of
gravity for models with large extra dimensions and the most precise direct
measurement of the number of light neutrino species. Status and prospects of
the LEP combined searches are also discussed.


title: Muon Pair Production in ep Collisions at HERA

abstract:
  Cross sections for the production of two isolated muons up to high di-muon
masses are measured in ep collisions at HERA with the H1 detector in a data
sample corresponding to an integrated luminosity of 71 pb^-1 at a centre of
mass energy of sqrt{s} = 319 GeV. The results are in good agreement with
Standard Model predictions, the dominant process being photon-photon
interactions. Additional muons or electrons are searched for in events with two
high transverse momentum muons using the full data sample corresponding to 114
pb^-1, where data at sqrt{s} = 301 GeV and sqrt{s} = 319 GeV are combined. Both
the di-lepton sample and the tri-lepton sample agree well with the predictions.


title:
Observation of $B^0\ra\omega K^0$, $B^+\ra\eta\pi^+$, and $B^+\ra\eta
  K^+$ and Study of Related Decays

abstract:
  We present measurements of branching fractions and charge asymmetries for
seven B-meson decays with an eta, eta' or omega meson in the final state. The
data sample corresponds to 89 million BBbar pairs produced from e+e-
annihilation at the Upsilon(4S) resonance. We measure the following branching
fractions in units of 10^{-6}: B(etapi+)=5.3+/-1.0+/-0.3,
B(etaK+)=3.4+/-0.8+/-0.2, B(etaK0)=2.9+/-1.0+/- 0.2 (<5.2, 90% C.L.),
B(eta'pi+=2.7+/-1.2+/-0.3 (<4.5, 90% C.L.), B(omegapi+)=5.5+/-0.9+/-0.5,
B(omegaKp)=4.8+/-0.8+/-0.4, and B(omegaK0)=5.9+1.6-1.3+/-0.5. The charge
asymmetries are A_ch(etapi+)=-0.44+/-0.18+/-0.01,
A_ch(etaK+)=-0.52+/-0.24+/-0.01, A_ch(omegapi+)=0.03+/-0.16+/-0.01 and
A_ch(omegaK+)=-0.09+/-0.17+/-0.01.


title:
Observation of the Decay B0 => rho+ rho- and Measurement of the
  Branching Fraction and Polarization

abstract:
  We have observed the rare decay B0 => rho+ rho- in a sample of 89 million BB
pairs recorded with the BABAR detector. The number of observed events is 88
+23-21 +-9, with a significance of 5.1 standard deviations with systematic
uncertainties included. The branching fraction and the longitudinal
polarization are measured to be BR(B0 => rho+ rho-) = (25 +7-6 +5-6)*10^{-6}
and Gamma_L/Gamma = 0.98 +0.02-0.08 +-0.03, respectively.


title: Jet production at HERA I

abstract: This article reviews recent jet physics results from HERA.


title:
Searches for supersymmetric particles in e+e- collisions up to 208 GeV
  and interpretation of the results within the MSSM

abstract:
  DELPHI data collected at centre-of-mass energies up to 208 GeV have been
analysed to search for charginos, neutralinos and sfermions in the framework of
the Minimal Supersymmetric Standard Model (MSSM) with R-parity conservation. No
evidence for a signal was found in any of the channels. The results of each
search were used to derive limits on production cross-sections and particle
masses. In addition, the combined result of all searches excludes regions in
the parameter space of the constrained MSSM, leading to limits on the mass of
the Lightest Supersymmetric Particle and other supersymmetric particles.


title:
Search for SUSY in Gauge Mediated and Anomaly Mediated Supersymmetry
  Breaking Models

abstract:
  In this note, recent results on the search for Gauge Mediated Supersymmetry
Breaking (GMSB) and Anomaly Mediated Supersymmetry Breaking (AMSB) at the LEP
and Tevatron colliders are summarized. We report on DZERO's search for GMSB in
di-photon events with large missing transverse energy and discuss the
sensitivity of similar searches based on future Tevatron integrated
luminosities.


title: Recent Spin Physics at HERA

abstract:
  Recent results from the HERMES experiment at HERA are described. The large
data set from Run-I has yielded new information on the helicity structure of
the nucleon. The data to be taken in Run-II will deal mainly with the
transverse spin structure and with exclusive reactions.


title:
Charm-anticharm baryon production asymmetries in photon-nucleon
  interactions

abstract:
  We report measurements of the charm-anticharm production asymmetries for
$\Lambda_c^+$, $\Sigma_c^{++}$, $\Sigma_c^0$, $\Sigma_c^{++*}$,
$\Sigma_c^{0*}$, and $\Lambda_c^+(2625)$ baryons from the Fermilab
photoproduction experiment FOCUS (E831). These asymmetries are integrated over
the region where the spectrometer has good acceptance. In addition, we have
obtained results for the photoproduction asymmetries of the $\Lambda_c$ baryons
as functions of $p_L$, $p_T^2$, and $x_F$. The integrated asymmetry for
$\Lambda_c^+$ production, $(\sigma_{\Lambda_c^+} - \sigma_{\Lambda_c^-}) /
(\sigma_{\Lambda_c^+} + \sigma_{\Lambda_c^-})$, is $0.111 \pm 0.018 \pm 0.012$,
significantly different from zero. The asymmetries of the excited states are
consistent with the $\Lambda_c$ asymmetry.


title:
Inclusive Double Pomeron Exchange at the Fermilab Tevatron pbar-p
  Collider

abstract:
  We report a study of $\bar p+p\to \bar p+X+Y$ at $\sqrt s=1800$ GeV, where
$Y$ is a proton or system of mass-squared $M_Y^2\lesssim 8$ GeV$^2$. In a
sample of events with a leading $\bar p$ of fractional momentum loss
$0.035<\xi_{\bar p}<0.095$ and 4-momentum transfer squared $|t_{\bar p}|<1.0$
GeV$^2$, the proton fractional momentum loss $\xi_p^X$ to the system $X$ was
evaluated from the momenta of the particles comprising $X$. In the region
$\xi_p^X<0.02$, the $\xi_p^X$ distribution behaves as $\sim 1/(\xi_p^X)^{1.1}$,
as expected for double Pomeron exchange. The fraction of events with
$\xi_p^X<0.02$ is found to be $0.194\pm 0.001 {\rm (stat)}\pm 0.012 {\rm
(syst)}$.


title: Tensor Polarization of the phi meson Photoproduced at High t

abstract:
  As part of a measurement of the cross section of $\phi$ meson photoproduction
to high momentum transfer, we measured the polar angular decay distribution of
the outgoing $K^+$ in the channel $\phi \to K^+K^-$ in the $\phi$
center-of-mass frame (the helicity frame). We find that s-channel helicity
conservation (SCHC) holds in the kinematical range where $t$-channel exchange
dominates (up to $-t \sim 2.5$ GeV$^2$ for $E_{\gamma}$=3.6 GeV). Above this
momentum, $u$-channel production of a $\phi$ meson dominates and induces a
violation of SCHC. The deduced value of the $\phi NN$ coupling constant lies in
the upper range of previously reported values.


title: Measurements of the Photon Structure Function at LEP

abstract:
  In this contribution we discuss recent measurements by the LEP experiments on
photon structure functions.


title: Self-induced radiation of 4.3 GeV electron beam in crystalline medium

abstract:
  Investigates of interactions of a relativistic electron beam with single
crystals have shown that yields of gamma rays,their energies and outgoing
angles grow non-linearly with the beam intensity especially at small incidence
angles of electrons relative to crystalline planes and axes.It is observed
peculiar role of a crystal boundary in these phenomena.Ona can consider
coherent properties of physical vacuum, manifested near the crystal boundary
are responsible for correlation processes in electromagnetic interactions of
the relativistic electrons.


title: Underlying Event Studies at CDF

abstract:
  We present recent studies about the `underlying event' which originates
mostly from soft spectator interactions. First Run II data results are compared
to published Run I results and to QCD Monte Carlo models.


title:
Isolated tau leptons in events with large missing transverse momentum at
  HERA

abstract:
  A search for events containing isolated tau leptons and large missing
transverse momentum, not originating from the tau decay, has been performed
with the ZEUS detector at the electron-proton collider HERA, using 130 pb^-1 of
integrated luminosity. A search was made for isolated tracks coming from
hadronic tau decays. Observables based on the internal jet structure were
exploited to discriminate between tau decays and quark- or gluon-induced jets.
Three tau candidates were found, while 0.40 +0.12 -0.13 were expected from
Standard Model processes, such as charged current deep inelastic scattering and
single W-boson production. To search for heavy-particle decays, a more
restrictive selection was applied to isolate tau leptons produced together with
a hadronic final state with high transverse momentum. Two candidate events
survive, while 0.20 +-0.05 events are expected from Standard Model processes.


title: Neutrino Physics Without Oscillations

abstract:
  There is a tremendous potential for neutrinos to yield valuable new
information about strongly interacting systems. Here we provide a taste of this
potential, beginning with the existence of a rigorous sum rule for the proton
and neutron spin structure functions based on the measurement of the flavor
singlet axial charge of the nucleon. We also comment on the NuTeV report of a
3$\sigma$ deviation of the value of $\sin^2 \theta_W$ measured in neutrino (and
anti-neutrino) scattering from that expected within the Standard Model.


title:
Bose-Einstein correlations in one and two dimensions in deep inelastic
  scattering

abstract:
  Bose-Einstein correlations in one and two dimensions have been studied in
deep inelastic EP scattering events measured with the ZEUS detector at HERA
using an integrated luminosity of 121 pb-1. The correlations are independent of
the virtuality of the exchanged photon, Q2, in the range 0.1<Q2<8000 GeV2.
There is no significant difference between the correlations in the current and
target regions of the Breit frame for Q2>100 GeV2. The two-dimensional shape of
the particle-production source was investigated, and a significant difference
between the transverse and the longitudinal dimensions of the source is
observed.This difference also shows no Q2 dependence.The results demonstrate
that Bose-Einstein interference, and hence the size of the particle-production
source, is insensitive to the hard subprocess.


title:
An apparatus to search for mirror dark matter via the invisible decay of
  orthopositronium in vacuum

abstract:
  Mirror matter is a possible dark matter candidate. It is predicted to exist
if parity is an unbroken symmetry of the vacuum. The existence of the mirror
matter, which in addition to gravity is coupled to our world through
photon-mirror photon mixing, would result in orthopositronium (o-Ps) to mirror
orthopositronium (o-Ps') oscillations. The experimental signature of this
effect is the invisible decay of o-Ps in vacuum.
  This paper describes the design of the new experiment for a search for the
o-Ps -> invisible decay in vacuum with a sensitivity in the branching ratio of
Br(o-Ps -> invisible)\simeq 10^{-7}, which is an order of magnitude better than
the present limit on this decay mode from the Big Bang Nucleosynthesis. The
experiment is based on a high-efficiency pulsed slow positron beam, which is
also applicable for other experiments with o-Ps, and (with some modifications)
for applied studies. Details of the experimental design and of a new pulsing
method, as well as preliminary results on requirements for the pulsed beam
components are presented. The effects of o-Ps collisions with the cavity walls
as well as the influence of external fields on the o-Ps to o-Ps' oscillation
probability are also discussed.


title:
Measurement of the branching fractions and CP-asymmetry of B^- ->
  D^0_(CP) K^- decays with the BaBar detector

abstract:
  We present a study of B- -> D^0_CP K^- decays, where D^0_CP is reconstructed
in CP-even channels, based on a sample of 88.8 million Upsilon(4S)->BBbar
decays collected with the BaBar detector at the PEP-II e^+e^- storage ring. We
measure the ratio of Cabibbo-suppressed to Cabibbo-favored branching fractions
Br(B- -> D^0_CP K^-)/Br(B- -> D^0_CP pi^-)= (8.8 +/- 1.6(stat) +/-
0.5(syst))\times 10^{-2} and the CP asymmetry A_CP= 0.07 +/- 0.17(stat) +/-
0.06(syst). We also measure Br(B- ->D0K-)/Br(B- ->D0pi-)=(8.31 +/- 0.35(stat)
+/- 0.20(syst))\times 10^{-2} using a sample of 61.0 million BBbar pairs.


title: Search for CP Violation in D^0--> K_S^0 pi^+pi^-

abstract:
  We report on a search for CP violation in the decay of D0 and D0B to Kshort
pi+pi-. The data come from an integrated luminosity of 9.0 1/fb of e+e-
collisions at sqrt(s) ~ 10 GeV recorded with the CLEO II.V detector. The
resonance substructure of this decay is well described by ten quasi-two-body
decay channels (K*-pi+, K*0(1430)-pi+, K*2(1430)-pi+, K*(1680)-pi+, Kshort rho,
Kshort omega, Kshort f0(980), Kshort f2(1270), Kshort f0(1370), and the ``wrong
sign'' K*+ pi-) plus a small non-resonant component. We observe no evidence for
CP violation in the amplitudes and phases that describe the decay D0 to K_S^0
pi+pi-.


title:
Characterization of the Response of Superheated Droplet (Bubble)
  Detectors

abstract:
  The PICASSO project is a cold dark matter (CDM) search experiment relying on
the superheated droplet technique. The detectors use superheated freon liquid
droplets (active material) dispersed and trapped in a polymerized gel. This
detection technique is based on the phase transition of superheated droplets at
room or moderate temperatures. The phase transitions are induced by nuclear
recoils when undergoing interactions with particles, including CDM candidates
such as the neutralinos predicted by supersymmetric models. The suitability of
the technique for this purpose has been demonstrated by R&D studies performed
over several years on detectors of various composition and volume. Simulations
performed to understand the detector response to neutrons and alpha particles
are presented along with corresponding data obtained at the Montreal
Laboratory.


title: Recent D0 Results at Run II

abstract:
  The DO experiment is taking data with an upgraded detector since March 2001.
The integrated luminosity taken in Run II has now exceeded that taken in Run I.
Selected physics results obtained with this data set are presented.


title:
Observation of two narrow mesons in the D+_s pi^0 and D+_s pi^0 gamma
  final states. Results from BaBar, Belle and CLEO

abstract:
  The BaBar experiment has discovered a narrow state, denoted as
D*_{sJ}(2317)+, near 2.32 GeV/c^2 in the D+s pi^0 invariant mass distribution
from inclusive $e^{+}e^{-}$ interactions at center-of-mass energies near 10.6
GeV. The same experiment has hinted the presence of a second new state near
2.46 GeV/c^2 in the D+_s pi^0 gamma mass spectrum. These discoveries have
triggered CLEO and Belle experiments in their own search for new states coupled
to D+_s meson. They have confirmed the existence of the D*_{sJ}(2317)^+ state
and established the evidence for the second state denoted as D*_{sJ}(2458)^+.
Belle has reported evidence for both states not only in continuum e+e-
annihilations but also in B decays. These two new narrow resonances are
characterized by masses significantly lower than predicted by potential models
and enough to close off the most natural decay modes, thus forcing
isospin-violating transitions. Their discovery has been a surprise because it
contradicts the expectations of apparently established theory. This
circumstance has led to a great effort on theoretical side as well.


title:
Limits on the Decay-Rate Difference of Neutral B Mesons and on CP, T,
  and CPT Violation in B0-B0bar Oscillations

abstract:
  Using events in which one of two neutral B mesons from the decay of an Y(4S)
meson is fully reconstructed, we determine parameters governing decay
(\Delta\Gamma_d/\Gamma_d), CP and T violation (|q/p|), and CP and CPT violation
(Rez,Imz). The results, obtained from an analysis of 88 million Y(4S) decays
recorded by BABAR, are -- sgn(Re(lambdaCP))\Delta\Gamma_d/Gamma_d = -0.008 +-
0.037 +- 0.018 [ -0.084, 0.068 ] |q/p| = 1.029 +- 0.013 +- 0.011 [ 1.001, 1.057
] Re(lambdaCP)/|lambdaCP| Rez = 0.014 +- 0.035 +- 0.034 [ -0.072, 0.101 ] Imz =
0.038 +- 0.029 +- 0.025 [ -0.028, 0.104 ]. -- The values inside square brackets
indicate the 90% confidence-level intervals. These results are consistent with
Standard Model expectations.


title:
Measurements of the mass and width of the eta_c meson and of an
  eta_c(2S) candidate

abstract:
  The mass and total width of the eta_c meson have been measured in two-photon
interactions at the SLAC asymmetric B-Factory with the BABAR detector. With a
sample of approximately 2500 reconstructed eta_c -> Ks K pi decays in 88 fb-1
of data, the measured eta_c mass and width are respectively 2982.5 +- 1.1
(stat) +- 0.9 (syst) MeV/c2 and 34.3 +- 2.3 (stat) +- 0.9 (syst) MeV/c2. Using
the same decay mode, a second resonance with 112 +- 24 events is observed with
a mass of 3630.8 +- 3.4 (stat) +- 1.0 (syst) MeV/c2 and width of 17.0 +- 8.3
(stat) +- 2.5 (syst) MeV/c2. This observation is consistent with expectations
for the eta_c(2S) state.


title: Combination of CDF and D0 Results on W Boson Mass and Width

abstract:
  The results based on 1992-95 data (Run 1) from the CDF and DO experiments on
the measurements of the W boson mass and width are presented, along with the
combined results.
  We report a Tevatron collider average M_W = 80.456 +- 0.059 GeV. We also
report the Tevatron collider average of the directly measured W boson width
Gamma_W = 2.115 +- 0.105 GeV. We describe a new joint analysis of the direct W
mass and width measurements.
  Assuming the validity of the standard model, we combine the directly measured
W boson width with the width extracted from the ratio of W and Z boson leptonic
partial cross sections. This combined result for the Tevatron is Gamma_W =
2.135 +- 0.050 GeV. Finally, we use the measurements of the direct total W
width and the leptonic branching ratio to extract the leptonic partial width
Gamma(W -> e nu) = 224 +- 13 MeV.


title: Measurement of the muon decay spectrum with the ICARUS liquid Argon TPC

abstract:
  Examples are given which prove the ICARUS detector quality through relevant
physics measurements. We study the muon decay energy spectrum from a sample of
stopping muon events acquired during the test run of the ICARUS T600 detector.
This detector allows the spatial reconstruction of the events with fine
granularity, hence, the precise measurement of the range and dE/dx of the muon
with high sampling rate. This information is used to compute the calibration
factors needed for the full calorimetric reconstruction of the events. The
Michel rho parameter is then measured by comparison of the experimental and
Monte Carlo simulated muon decay spectra, obtaining rho = 0.72 +/- 0.06(stat.)
+/- 0.08(syst.). The energy resolution for electrons below ~50 MeV is finally
extracted from the simulated sample, obtaining (Emeas-Emc)/Emc =
11%/sqrt(E[MeV]) + 2%.


title: Particle Identification for Physics beyond the LHC

abstract:
  Accelerator physics beyond the LHC is expected to provide precision in the
study of new physics processes which the LHC may have already unveiled and to
extend the high energy frontier beyond its reach, in the multi-TeV domain. In
this paper I review the anticipated needs in terms of particle identification
of this physics program in relation to the experimental conditions.


title: Heavy-Flavor Production Overview

abstract:
  This talk serves as an introduction to the Heavy-Flavor session of the XXXIII
International Symposium on Multiparticle Dynamics. A major focus of this
session is on the production of heavy quarks. The talks which follow review the
latest results on heavy quark production in strong, electromagnetic, and weak
interactions, as well as some of the physics of the heavy quarks themselves.
This talk emphasizes what we can learn from the production measurements, both
about underlying QCD theory and the partonic nature of the hadrons which we see
in the laboratory.


title:
Observation of the Hadronic Transitions chi_b1,2 (2P) --> omega
  Upsilon(1S)

abstract:
  The CLEO Collaboration has made the first observations of hadronic
transitions among bottomonium (b-bbar) states other than the dipion transitions
among upsns states. In our study of Y(3S) decays, we find a significant signal
for Y(3S) -> gamma omega Y(1S) that is consistent with radiative decays Y(3S)
-> gamma chi_b1,2(2P), followed by chi_b1,2(2P) -> omega Y(1S). The branching
ratios we obtain are B(chi_b1(2P) -> omega Y(1S)) = (1.63 +0.35-0.31
+0.16-0.15)% and B(chi_b2(2P) -> omega Y(1S)) = (1.10 +0.32-0.28 +0.11-0.10)%,
in which the first error is statistical and the second is systematic.


title: Photoproduction at HERA

abstract:
  Selected aspects of photoproduction in ep scattering at the HERA collider,
studied with the ZEUS detector, are presented. The results are interpreted in
the formalism of Vector Dominance Model, Regge theory and perturbative Quantum
Chromodynamics.


title:
Photoproduction of eta mesons off protons for photon energies from 0.75
  GeV to 3 GeV

abstract:
  Total and differential cross sections for the reaction p(gamma, eta)p have
been measured for photon energies in the range from 750 MeV to 3 GeV. The
low-energy data are dominated by the S11 wave which has two poles in the energy
region below 2 GeV. Eleven nucleon resonances are observed in their decay into
p eta. At medium energies we find evidence for a new resonance N(2070)D15 with
(mass, width) = (2068+-22, 295+-40) MeV. At photon energies above 1.5 GeV, a
strong peak in forward direction develops, signalling the exchange of vector
mesons in the t channel.


title:
Observation of an Exotic Baryon with S=+1 in Photoproduction from the
  Proton

abstract:
  The reaction $\gamma p \to \pi^+K^-K^+n$ was studied at Jefferson Lab using a
tagged photon beam with an energy range of 3-5.47 GeV. A narrow baryon state
with strangeness S=+1 and mass $M=1555\pm 10$ MeV/c$^2$ was observed in the
$nK^+$ invariant mass spectrum. The peak's width is consistent with the CLAS
resolution (FWHM=26 MeV/c$^2$), and its statistical significance is 7.8 $\pm$
1.0 ~$\sigma$. A baryon with positive strangeness has exotic structure and
cannot be described in the framework of the naive constituent quark model. The
mass of the observed state is consistent with the mass predicted by a chiral
soliton model for the $\Theta^+$ baryon. In addition, the $pK^+$ invariant mass
distribution was analyzed in the reaction $\gamma p\to K^-K^+p$ with high
statistics in search of doubly-charged exotic baryon states. No resonance
structures were found in this spectrum.


title: New Results on Tau Lepton

abstract:
  This is a review of new results on the Tau lepton. The lifetime has been
measured with improved precision, allowing the test of lepton universality to
0.2% level. There are several new measurements of the branching ratios for the
hadronic decays, including much improved measurements for the
Cabibbo-suppressed decays. All results are consistent with the Standard Model
expectations.


title:
Measurement of |V_ub| using inclusive B -> X_u l nu decays with a novel
  X_u-reconstruction method

abstract:
  We report the measurement of an inclusive partial branching fraction for
charmless semileptonic B decay and the extraction of |V_ub|. Candidates for B
-> X_u l nu are identified with a novel X_u-reconstruction method based on
neutrino reconstruction via missing 4-momentum and a technique called
``simulated annealing.'' Based on 86.9/fb of data taken with the Belle
detector, we obtain Br (B -> X_u l nu ; M_X<1.7 GeV/c^2, q^2>8.0 GeV^2/c^2) =
  (7.37 +- 0.89(stat.) +- 1.12(syst.) +- 0.55(b -> c) +- 0.24(b -> u)) x
10^(-4) and determine |V_ub| = (4.66 +- 0.28(stat.) +- 0.35(syst.) +- 0.17(b ->
c) +- 0.08(b -> u) +- 0.58(theory)) x 10^(-3).


title:
Measurement of Branching Fractions and Charge Asymmetries in B+ -->
  rho+pi0 and B+ -->rho0pi+ Decays, and Search for B0 --> rho0pi0

abstract:
  We present measurements of branching fractions and charge asymmetries in
$B$-meson decays to $\rho^+ \pi^{0}$, $\rho^{0}\pi^+$ and $\rho^0\pi^0$. The
data sample comprises $89 \times 10^6$ $\Upsilon(4S) \to B\bar{B}$ decays
collected with the $BaBar$ detector at the PEP-II asymmetric-energy $B$ Factory
at SLAC. We find the charge-averaged branching fractions ${\cal B}(B^{+}\to
\rho^{+}\pi^0) = (10.9 \pm 1.9{\rm (stat)} \pm 1.9{\rm (syst)})\times 10^{-6}$
and ${\cal B}(B^{+} \to \rho^0 \pi^{+}) = (9.5 \pm 1.1{\rm (stat)} \pm 0.8{\rm
(syst)}) \times 10^{-6}$, and we set a 90% confidence-level upper limit ${\cal
B}(B^0 \to \rho^0\pi^0) < 2.9 \times 10^{-6}$. We measure the charge
asymmetries $A_{CP}^{\rho^{+}\pi^0} = 0.24 \pm 0.16 \pm 0.06$ and
$A_{CP}^{\rho^0\pi^{+}} = -0.19 \pm 0.11 \pm 0.02$.


title:
Measurement of the polar-angle distribution of leptons from W boson
  decay as a function of the W transverse momentum in proton-antiproton
  collisions at sqrt{s}=1.8 TeV

abstract:
  We present a measurement of the coefficient alpha_2 of the leptonic
polar-angle distribution from W boson decays, as a function of the W transverse
momentum. The measurement uses an 80+/-4 pb^{-1} sample of proton-antiproton
collisions at sqrt{s}=1.8 TeV collected by the CDF detector and includes data
from both the W->e+nu and W->mu+nu decay channels. We fit the W boson
transverse mass distribution to a set of templates from a Monte Carlo event
generator and detector simulation in several ranges of the W transverse
momentum. The measurement agrees with the Standard Model expectation, whereby
the ratio of longitudinally to transversely polarized W bosons, in the
Collins-Soper W rest frame, increases with the W transverse momentum at a rate
of approximately 15% per 10 GeV/c.


title:
Heavy flavor properties of jets produced in $p\bar{p}$ interactions at
  $sqrt{s}=$ 1.8 TeV

abstract:
  We present a detailed examination of the heavy flavor properties of jets
produced at the Fermilab Tevatron collider. The data set, collected with the
Collider Detector at Fermilab, consists of events with two or more jets with
transverse energy $E_T \geq 15$ GeV and pseudo-rapidity $|\eta| \leq 1.5$. The
heavy flavor content of the data set is enriched by requiring that at least one
of the jets (lepton-jet) contains a lepton with transverse momentum larger than
8 GeV/c. Jets containing hadrons with heavy flavor are selected via the
identification of secondary vertices.
  The parton-level cross sections predicted by the {\sc herwig} Monte Carlo
generator program are tuned within theoretical and experimental uncertainties
to reproduce the secondary-vertex rates in the data.
  The tuned simulation provides new information on the origin of the
discrepancy between the $b\bar{b}$ cross section measurements at the Tevatron
and the next-to-leading order QCD prediction. We also compare the rate of
away-jets (jets recoiling against the lepton-jet) containing a soft lepton
($p_T \geq 2$ GeV/c) in the data to that in the tuned simulation.
  We find that this rate is larger than what is expected for the conventional
production and semileptonic decay of pairs of hadrons with heavy flavor.


title: Physics with charged kaons: recent and future experiments

abstract:
  This paper summarizes some recent progress and future perspectives in the
experimental investigation of the Standard Model (and physics beyond it) using
charged kaon decays, except for the important mode K+ -> pi+ nu nubar discussed
in detail in other contributions to this workshop.


title: K -> pi,nu,nubar at Hadron Machines

abstract:
  The results and goals of experiments E787, E949, CKM and KOPIO on the
measurement of the branching fractions of K+ -> pi+,nu,nubar and K0L ->
pi0,nu,nubar are presented.


title: Recent Results from D0

abstract:
  We discuss recent (B physics) results from D0. The results presented here
correspond to an integrated luminosity of approx 115 inverse pico-barns of data
collected at the Tevatron, between April 2002 and June 2003, at a center of
mass energy of (p-pbar collisions) of 1.96 TeV.


title: Studying Low-x Dynamics using the Hadronic Final State in DIS at HERA

abstract:
  This article describes different approaches to investigate the behavior of
parton evolution in the proton by exploiting various aspects of the hadronic
final state produced in Deep Inelastic Scattering Events at HERA.


title: Two-Photon Physics at LEP

abstract:
  A remarkable number of studies have been performed at LEP in the field of
two-photon physics in the last four years. These results represent a very
important contribution to the understanding of strong interactions at low
energies. In particular, significant deviations from QCD predictions are found
in the cross sections of inclusive single particle, jet and beauty production.
A concise review of some of these results is presented.


title: Experimental limits on New Physics from charm decay

abstract:
  Recent measurements in the charm sector are reviewed, concentrating on
results which are sensitive to New Physics effects. The scope of the
presentation includes D0-D0bar mixing searches, a CPT / Lorentz invariance
study, and a range of searches for rare and forbidden decays. Results from the
BaBar, Belle, CDF, CLEO, and FOCUS collaborations are presented, including an
important first observation.


title: The ATLAS Transition Radiation Tracker

abstract:
  The Transition Radiation Tracker is a combined tracking and electron
identification detector, which is part of the ATLAS Inner Detector at the CERN
LHC. Tracking is carried out by drift tubes, while the interleaved radiators
produce detectable X-rays when electrons traverse them. The status of the
construction and quality control tests will be discussed. The results of beam
tests performed on detector prototypes and the expected performance in ATLAS
will also be reviewed.


title: Systematic Analysis of HEP Collider Data

abstract:
  Compelling arguments suggest the presence of new physics at energy scales
that will be probed by frontier energy colliders over the next decade.
Arguments for each of the many flavors of new physics that have been proposed
seem much less compelling. The wide variety of experimental signatures by which
new physics may manifest itself suggests the desirability of analyzing all high
energy collider data in one systematic framework. These proceedings describe
two potentially useful pieces of such a framework: Sleuth enables a
model-independent search for new high-pT physics, and Quaero automates tests of
particular hypotheses against high energy collider data. A sampling of
algorithmic detail is provided in the form of a procedure for choosing an
optimal binning when computing likelihood ratios.


title:
Analysis of the characteristics of nucleus-nucleus collisions depending
  on the centrality

abstract:
  The experimental results on some centrality depending characteristics of
hadron-nuclear and nuclear-nuclear interactions at high energies demonstrate
the regime changes. Appearance of strong interaction matter's mixed states is
considered as a cause of it and the effect of a cluster formation is discussed
as one of the phenomena connected with the mixed states.


title:
Improved Measurements of Branching Fractions for B->Kpi, pipi and KK
  Decays

abstract:
  We report improved measurements of branching fractions for $B\to K\pi$,
$\pi^+\pi^-$, $\pi^+\pi^0$ and $K\bar{K}$ decays based on a data sample of 85.0
million $B\bar{B}$ pairs collected at the $\Upsilon (4S)$ resonance with the
Belle detector at the KEKB $e^+e^-$ storage ring. This data sample is almost
three times larger than the sample previously used. We observe clear signals
for $B\to K\pi$, $\pi^+\pi^-$ and $\pi^+\pi^0$ decays and set upper limits on
$B\to K\bar{K}$ decays. The results can be used to give model-dependent
constraints on the CKM angle $\phi_3$, as well as limits on the hadronic
uncertainty in the time-dependent analysis of the angle $\phi_2$.


title: Searches for R-parity Violating Supersymmetry at HERA

abstract:
  Searches for R-parity violating supersymmetry performed at the H1 experiment
are presented. Emphasis is put on searches for squarks, which may be resonantly
produced at the HERA $ep$ collider in supersymmetry where R-parity is violated.
The preliminary results presented here were obtained using data collected at a
centre-of-mass energy of 320 GeV and corresponding to an integrated luminosity
of 63 pb$^{-1}$.


title: Recent Results from the Sudbury Neutrino Observatory

abstract:
  The Sudbury Neutrino Observatory (SNO) measures both the flux of the
electron-type neutrinos and the total flux of all active flavours of neutrinos
originating from the Sun. A model-independent test of neutrino flavour
transformation was performed by comparing these two measurements. In 2002, this
flavour transformation was definitively demonstrated. In this talk, results
from these measurements and the current status of the SNO detector are
presented.


title: $\Theta+$: Another Explanation and Prediction

abstract:
  Recently the so-called $\Theta^+$ resonance has been reported first from
SPring8\cite{nakano} and many following experiments showed apparent
confirmation of the state. Since $\Theta^+$ exclusively decays into either $K^+
n$ or $K^0 p$, it is explained as the predicted pentaquark state which includes
$ u u d d \bar{s}$ quarks. However, one yet has to obtain consistent picture of
$\Theta^+$ and its quantum numbers. We try to explain $\Theta^+$ in a
conventional picture and show that such picture leads to new predictions on
kaon and pion system.


title: High statistic study of the K- -> pi0 mu- nu decay

abstract:
  The decay K- -> pi0 mu- nu has been studied using in-flight decays detected
with the "ISTRA+" spectrometer. About 540K events were collected for the
analysis. The lambda+ and lambda0 slope parameters of the decay form-factors
f+(t), f0(t) have been measured : lambda+ = 0.0277+-0.0013 (stat)+-0.0009
(syst), lambda0 = 0.0183+-0.0011(stat)+-0.0006(syst), and
d(lambda0)/d(lambda+)=-0.348. The limits on the possible tensor and scalar
couplings have been derived: fT/f+(0)=-0.0007 +- 0.0071, fS/f+(0)=0.0017 +-
0.0014. No visible non-linearity in the form-factors have been observed.


title: Searches for New Physics at Tevatron

abstract:
  This paper reviews the most recent results on searches for physics beyond the
Standard Model at Tevatron. Both the collider experiments: CDF and DO are
performing a large variety of searches such as searches for scalar top and
scalar bottom particles, search for new gauge bosons, search for long-lived
massive particles and general searches for new particles decaying into dijets.
The results, summarized here, are a selection of what obtained recently by both
the collaborations using the Run II data, collected so far.


title: New search for T-violation in the decays of the charged kaon

abstract:
  We report the results of the measurement of T-violating transverse muon
polarization in the decays K^+ --> pi^0 mu^+ nu and K^+ --> mu^+ nu gamma
performed in the experiment E246 at KEK. Preliminary results obtained for the
entire data set taken in the period 1996-2000 are consistent with no
T-violation in both decays.


title:
Universal threshold for single-spin asymmetries in fixed target
  experiments

abstract:
  The analysis of inclusive $\pi$-meson single spin asymmetry measurements was
done. It was found that the single spin asymmetry starts to grow up at the same
value of the $\pi$-meson energy in the center of mass system for fixed target
experiments at the beam energy range from 13 to 200 GeV.


title: Top Quark Cross-Section Measurements at the Tevatron

abstract:
  Run II of the Tevatron collider at Fermilab is well under way and data
samples larger than those of Run I are at hand. In this contribution I
summarize the current status of cross-section measurements for top-quark pair
production at the CDF and D0 experiments.


title: Recent Results from Protvino Polarized Experiment Proza-M

abstract:
  Single Spin Asymmetry $A_N$ (SSA) was measured at the Protvino 70 GeV
accelerator. Asymmetry in the reaction $\ppdup$ is close to zero within error
bars at small $|\xf|$ and $p_T<1.5$ GeV/c. SSA in the reaction $\pimp$ at
polarized target fragmentation region equals to $(-13.8 \pm 3.8)%$ at
$|x_f|>0.4$. There is an indication that the asymmetry begins to rise up at the
same centre of mass system pion energy.


title:
Presence of the Universal Substructures in the Hadrons -- Constituent
  Quarks

abstract:
  The universality of single-spin asymmetry on inclusive $\pi$-meson production
is discussed. This universality can be related to the hadron substructure --
constituent quarks in the frame of the quark model for U-matrix.


title: Jet production in deep inelastic ep scattering at HERA

abstract:
  Recent results from jet production in deep inelastic ep scattering at HERA
are reviewed. The values of alpha_s(M_z) extracted from a QCD analysis of the
data are presented.


title: Short Status Report Of The Nucleon Time-Like Form Factors Measurements

abstract:
  The measurements of the nucleon electromagnetic form factors in the time-like
region are reviewed. Several unexpected features deserving new high precision,
high statistics measurements are emphasised.


title:
Studies of DVCS and photoproduction of photons at high t with the H1
  Detector

abstract:
  The diffractive scattering of photon off proton $\gamma^{(*)} p \to \gamma Y$
(where $Y$ denotes the proton dissociative system or the elastically scattered
proton) is measured in two different kinematic regimes at high energy with the
H1 detector at HERA. i) the process is studied for the first time at large
transverse photon momentum $p_t^{\gamma} > 2$ GeV in photoproduction regime
($Q^2 < 0.01$ GeV$^2$)and photon-proton c.m.s. energy $175 < W < 247 {\rm
GeV}$. The cross section is measured differentially in $t$ and in $\xpom$. The
measurement is compared to a LL BFKL prediction of QCD. ii) in
electroproduction, the Deeply Virtual Compton Scattering (DVCS) $\gamma^* p \to
\gamma p$ cross section has been measured more precisely and in an extended
kinematic domain: at photon virtualities $4<Q^2<80$ GeV$^2$ and $30<W<140$ GeV.
The measurement is compared to NLO QCD calculations using the DGLAP
approximation and to Colour Dipole model predictions.


title:
Single-Spin Asymmetry in Inclusive $\pi^0$ Production Measured at the
  Protvino 70 GeV Accelerator

abstract:
  Single Spin Asymmetries (SSA) $A_N$ measured in the two reactions at the
Protvino 70 GeV accelerator are presented. $A_N$ in the reaction
$p+p(pol)->\pi^0+X$ in the central region is close to zero within the error
bars. SSA in the reaction $\pi^- +p(pol)->\pi^0+X$ in the polarized target
fragmentation region is equal to $(-15 \pm 4)%$ at $|x_F|>0.4$. There is an
indication that the asymmetry arises at the same pion energy in the center of
mass system.


title: Measurements of direct CP violation

abstract:
  We review the experimental searches and determinations of direct CP violation
in meson decays and other systems.


title: Measurements of $\psi(2S)$ decays into Vector- Tensor final states

abstract:
  Decays of the $\psi(2S)$ into vector plus tensor meson final states have been
studied with 14 million $\psi(2S)$ events collected with the BESII detector.
Branching fractions of $\psi(2S) \rt \omega f_{2}(1270)$, $\rho a_2(1320)$,
$K^*(892)^0\bar{K}^*_2(1430)^0+c.c.$ and $\phi f_2^{\prime}(1525)$ are
determined. They improve upon previous BESI results and confirm the violation
of the "12%" rule for $\psi(2S)$ decays to VT channels with higher precision.


title: Design, Commissioning and Performance of the PIBETA Detector at PSI

abstract:
  We describe the design, construction and performance of the PIBETA detector
built for the precise measurement of the branching ratio of pion beta decay,
pi+ -> pi0 e+ nu, at the Paul Scherrer Institute. The central part of the
detector is a 240-module spherical pure CsI calorimeter covering 3*pi sr solid
angle. The calorimeter is supplemented with an active collimator/beam degrader
system, an active segmented plastic target, a pair of low-mass cylindrical wire
chambers and a 20-element cylindrical plastic scintillator hodoscope. The whole
detector system is housed inside a temperature-controlled lead brick enclosure
which in turn is lined with cosmic muon plastic veto counters. Commissioning
and calibration data were taken during two three-month beam periods in
1999/2000 with pi+ stopping rates between 1.3*E3 pi+/s and 1.3*E6 pi+/s. We
examine the timing, energy and angular detector resolution for photons,
positrons and protons in the energy range of 5-150 MeV, as well as the response
of the detector to cosmic muons. We illustrate the detector signatures for the
assorted rare pion and muon decays and their associated backgrounds.


title: Deep Inelastic Lepton-Nucleon Scattering at HERA

abstract:
  Data from the HERA collider experiments, H1 and ZEUS, have been fundamental
to the rapid recent development of our understanding of the partonic
composition of the proton and of QCD. This report focuses on inclusive
measurements of neutral and charged current cross sections at HERA, using the
full available data taken to date. The present precision on the proton parton
densities and the further requirements for future measurements at the Tevatron
and LHC are explored. Emphasis is also placed on the region of very low
Bjorken-x and Q^2. In this region, the `confinement' transition takes place
from partons to hadrons as the relevant degrees of freedom and novel or exotic
QCD effects associated with large parton densities are most likely to be
observed. Finally, prospects for the second phase of HERA running are
discussed.


title: The New Narrow "D_s" States -- A Minireview

abstract:
  The experimental status concerning the two new narrow states with
charm-strange content is reviewed. The states have masses of 2317 and 2460 MeV,
widths less than 10 MeV, isospin consistent with zero, and spin-parities
consistent with being 0^+ and 1^+, respectively. Although the masses are lower
than the conventional expectation, these states appear to be the j=1/2 P-wave
levels of the D_s system, where j is the light quark angular momentum; there
may be mixing with the j=3/2 level for the 1^+ state.


title: The CDF-II Tau Physics Program

abstract:
  The study of processes containing tau leptons in the final state will play an
important role at Tevatron Run II. Such final states will be relevant both for
electroweak studies and measurements as well as in searches for physics beyond
the Standard Model. The present paper discuss the physics opportunities and
challenges related to the implementation of new set of triggers able to select
events containing tau candidates in the final state. We illustrate, in
particular, the physics capabilities for a variety of new physics scenarios
such as supersymmetry (SUSY), SUSY with R-parity violation, with Bilinear
parity violation or models with the violation of lepton flavor. Finally, we
present the first Run II results obtained using some of the described tau
triggers.


title:
Observation of the Narrow State $X(3872)\to J/\psi\pi^{+}\pi^{-}$ in
  $\bar{p}p$ Collisions at $\sqrt{s}=1.96 \TeV$

abstract:
  We report the observation of a narrow state decaying into $J/\psi\pi^+\pi^-$
and produced in $220 pb^{-1}$ of $\bar{p} p $ collisions at $\sqrt{s}=1.96 TeV$
in the CDF II experiment. We observe $ 730 \pm 90 $ decays. The mass is
measured to be $3871.3 \pm 0.7 (stat) \pm 0.4 (syst) MeV/c2$, with an observed
width consistent with the detector resolution. This is in agreement with the
recent observation by the Belle Collaboration of the X(3872) meson.


title:
Kalman Filter Based Tracker Study For Muon-Electron Conversion
  Experiment

abstract:
  The search for muon to electron conversion with a sensitivity of the order
10^-17 requires a several order of magnitude increase in muon intensity and a
high resolution, sigma = 0.1 MeV/c of the electron's momentum.
  We present results of a pattern recognition and track momentum reconstruction
algorithm that relies on a Kalman filter approach. Background from captured
protons, neutrons, photons and muon decay in orbit were generated by GEANT. The
effective average straw tube background rate was 800 kHz.
  The pattern recognition proceeds in two stages. In the first, simple
considerations using only straw tube center coordinates, without drift time
information, were applied to reduce the background to a manageable level. Then
the drift time information is incorporated and a Deterministic Annealing Filter
applied to reach the final level of background suppression and to provide a
starting point for the track momentum reconstruction using the Kalman filter.
This procedure reduces the simulated background by a factor 800 with small,
(2.7%), losses in real tracker hits.
  The momentum resolution of the tracker is sigma = 0.12 MeV/c and the
acceptance for muon conversion events with momentum above 103.6 MeV/c is 22%.
These numbers do not differ significantly from the values obtained without
background.
  The expected number of events from muon decay in orbit (main background) in
which the decay electron has momentum greater than 100 MeV/c is 0.3, compared
to 6.5 muon-electron conversion events above the same threshold for R_mu_e
=10^-16.


title:
A Combination of Preliminary Electroweak Measurements and Constraints on
  the Standard Model

abstract:
  This note presents a combination of published and preliminary electroweak
results from the four LEP collaborations and the SLD collaboration which were
prepared for the 2003 summer conferences. Averages from $\Zzero$ resonance
results are derived for hadronic and leptonic cross sections, the leptonic
forward-backward asymmetries, the $\tau$ polarisation asymmetries, the $\bb$
and $\cc$ partial widths and forward-backward asymmetries and the $\qq$ charge
asymmetry. Above the $\Zzero$ resonance, averages are derived for di-fermion
cross sections and forward-backward asymmetries, photon-pair, W-pair, Z-pair,
single-W and single-Z cross sections, electroweak gauge boson couplings, W mass
and width and W decay branching ratios. Also, an investigation of the
interference of photon and Z-boson exchange is presented, and colour
reconnection and Bose-Einstein correlation analyses in W-pair production are
combined. The main changes with respect to the experimental results presented
in summer 2002 are updates to the mass of the W boson, four-fermion cross
sections and gauge couplings, all measured at LEP-2, and the LEP heavy-flavour
results measured at the Z pole.
  The results are compared with precise electroweak measurements from other
experiments, notably the recent final result on the electroweak mixing angle
determined in neutrino-nucleon scattering by the NuTeV collaboration and the
new result in atomic parity violation in Caesium. The parameters of the
Standard Model are evaluated, first using the combined LEP electroweak
measurements, and then using the full set of electroweak results.


title: Results on the CKM angle {$\phi_1$ $(\beta)$}

abstract:
  I review results related to the CKM angle $\phi_1$($\beta$). These results
include recent measurements of CP-violation from the BaBar and Belle
experiments in $b\to c \bar{c} s$, $b\to c \bar{c} d$ and $b\to s q \bar{q}$
processes.


title:
Absolute Branching Ratio Normalization for Rare pi+ and mu+ Decays in
  the PIBETA Experiment

abstract:
  We have used the PIBETA detector at the PSI for a precise measurement of rare
pion and muon weak decays. We have collected a large statistical sample of (1)
pi+ -> e+ nu, (2) pi+ -> pi0 e+ nu, (3) pi+ -> e+ nu gamma, (4) mu+ -> e+ nu
nu, and (5) mu+ -> e+ nu nu gamma decays. We have evaluated the absolute
branching ratios for these processes by normalizing to the independently
measured number of decaying pi+'s (or mu+'s). We discuss the mutual consistency
of the preliminary results.


title:
Search for Colour Singlet and Colour Reconnection Effects in Hadronic Z
  Decays at LEP

abstract:
  A search is performed in symmetric 3-jet hadronic Z decay events for evidence
of colour singlet production or colour reconnection effects. Asymmetries in the
angular separation of particles are found to be sensitive indicators of such
effects. Upper limits on the level of colour singlet production and colour
reconnection effects are established for a variety of models.


title:
Search for Lepton-Flavor Violation in the Decay
  $\tau^-\to\ell^-\ell^+\ell^-$

abstract:
  A search for the lepton-flavor-violating decay of the tau into three charged
leptons has been performed using $91.5 \mathrm{fb}^{-1}$ of data collected at
an $e^+e^-$ center-of-mass energy of 10.58 GeV with the BaBar detector at the
PEP-II storage ring. In all six decay modes considered, the numbers of events
found in data are compatible with the background expectations. Upper limits on
the branching fractions are set in the range $(1-3) \times 10^{-7}$ at 90%
confidence level.


title: |Vub| Measurements at B-Factories

abstract:
  The determination of the Vub element of the Cabibbo-Kobayashi-Maskawa (CKM)
quark mixing matrix plays a central role in testing the Standard Model (SM)
interpretation of CP violation. Measurements at B-Factories are contributing
with results that rely on different theoretical assumptions. Recent inclusive
and exclusive results from CLEO, BaBar and BELLE are reviewed.


title:
Precise Measurement of the Pion Axial Form Factor in the Pi+ -> e+ nu
  gamma Decay

abstract:
  We have studied radiative pion decays Pi+ -> e+ nu gamma in three broad
kinematic regions using the PIBETA detector and a stopped pion beam. Based on
Dalitz distributions of 42,209 events we have evaluated absolute Pi -> e nu
gamma branching ratios in the three regions. Minimum chi^2 fits to the integral
and differential (E(e+),E(gamma)) distributions result in the axial-to-vector
weak form factor ratio of gamma = F_A/F_V = 0.443(15),or F_A = 0.0115(4) with
F_V = 0.0259. However, deviations from Standard Model predictions in the
high-E(gamma)/low-E(e+) kinematic region indicate the need for further
theoretical and experimental work.


title: Precise Measurement of the Pi+ -> Pi0 e+ nu Branching Ratio

abstract:
  Using a large acceptance calorimeter and a stopped pion beam we have made a
precise measurement of the rare Pi+ -> Pi0 e+ Nu,(pi_beta) decay branching
ratio. We have evaluated the branching ratio by normalizing the number of
observed pi_beta decays to the number of observed Pi+ -> e+ Nu, (pi_{e2})
decays. We find the value of Gamma(Pi+ -> Pi0 e+ Nu)/Gamma(total) = [1.036 +/-
0.004(stat.) +/- 0.004(syst.) +/- 0.003(pi_{e2})] x 10^{-8}$, where the first
uncertainty is statistical, the second systematic, and the third is the pi_{e2}
branching ratio uncertainty. Our result agrees well with the Standard Model
prediction.


title:
Mixings, Lifetimes, Spectroscopy and Production of Heavy Flavor at the
  Tevatron

abstract:
  The Fermilab Tevatron offers unique opportunities to perform measurements of
the heavier B hadrons that are not accessible at the Upsilon(4S) resonance. In
this summary, we describe some recent heavy flavor results from the DO and CDF
collaborations and discuss prospects for future measurements.


title: Kaon Interferometry at KLOE: Present and Future

abstract:
  Interferometry with neutral kaons at KLOE is reviewed. The preliminary
results on phi->KS KL->pi+pi- pi+pi- and decoherence parameter are presented.
The impact of C-even background and regenerators is shortly discussed and
updated. Finally KLOE perspectives on interferometry at DAPHNE and expectations
at a new higher luminosity phi-factory are briefly illustrated.


title: QCD and Hadronic Interactions - Experimental Summary of Moriond 03

abstract: The broad progress in QCD studies during the last years is summarised


title: The CLEO-c Research Program

abstract:
  The CLEO-c research program will include studies of leptonic, semileptonic
and hadronic charm decays, searches for exotic and gluonic matter, and test for
physics beyond the Standard Model. In the summer of 2003 the experiment and the
CESR accelerator were modified to operate at center-of-mass energies between 3
and 5 GeV. Data at the psi(3770) resonance were recorded with the CLEO-c
detector in September 2003. beginning a new era in the exploration of the charm
sector.


title: Observation of Parity Nonconservation in Moller Scattering

abstract:
  We report a measurement of the parity-violating asymmetry in fixed target
electron-electron (Moller) scattering: A_PV = -175 +/- 30 (stat.) +/- 20
(syst.) parts per billion. This first direct observation of parity
nonconservation in Moller scattering leads to a measurement of the electron's
weak charge at low energy Q^e_W = -0.053 +/- 0.011. This is consistent with the
Standard Model expectation at the current level of precision:
sin^2\theta_W(M_Z)_MSbar = 0.2293 +/- 0.0024 (stat.) +/- 0.0016 (syst.) +/-
0.0006 (theory).


title: Measurement of alpha_s in radiative hadronic events at OPAL

abstract:
  Hadronic final states with a hard isolated photon are studied using data
taken at centre-of-mass energies around $\Mz$ with the OPAL detector at LEP.
The strong coupling $\as$ is extracted by fitting event shape variables for the
reduced centre-of-mass energies ranging from 20 GeV to 80 GeV, and the energy
dependence of $\as$ is studied. Combining all the values using different event
shape variables and energies gives:
  \asmz=0.1176\pm 0.0012(stat.)^{+0.0093}_{-0.0085}(syst.).


title: 3pi photo-production with CLAS

abstract:
  The $3\pi$ system produced in the reaction $\gamma p \to
\pi^{+}\pi^{+}\pi^{-} n$ at $4.8-5.4$ GeV is investigated from the E01-017
(g6c) running of CLAS. This energy range allows for the study of excited mesons
in the 1-2 GeV mass range, in their decay to $3\pi$, proceeding through $\rho
\pi$ and $f_2 \pi$ emissions. At these energies, there is significant overlap
in phase space for events with $\rho$ and $f_2$ production, recoiling off an
excited baryon, such as the $\Delta(1232)$, $N^*(1520)$ and $N^*(1680)$. We
show that after few kinematic selections, events of the latter type are
suppressed in the final data set, allowing us to perform a PWA on the $3\pi$
system.


title: Review of Recent Results in Charm Physics

abstract:
  A biased review of recent results in charm physics is presented. New results
on D0 anti-D0 mixing, rare decays of D0 and D+/-, scalar resonances in D+ and
Ds decays, and new decay modes and mass measurements in Lambda_c, Xi_c,
Omega_c, and Xi_cc are discussed.


title: Charmed-strange Mesons Experimental Results

abstract:
  Two new states in the charm strange sector, DsJ(2317) and DsJ(2460), have
recently been discovered at electron positron collider experiments. The new
states are first observed in the dominant Ds pi0 and Ds* pi0 modes respectively
and are very narrow. They are consistent with 0+ and 1+ P-wave charm
anti-strange mesons. The DsJ(2460) meson is also observed in Ds gamma and Ds
pi+ pi- modes. A review of the discoveries and possible explanations is given.


title:
Dalitz plot analysis of D_s+ and D+ decay to pi+pi-pi+ using the
  K-matrix formalism

abstract:
  FOCUS results from Dalitz plot analysis of D_s+ and D+ to pi+pi-pi+ are
presented. The K-matrix formalism is applied to charm decays for the first time
to fully exploit the already existing knowledge coming from the light-meson
spectroscopy experiments. In particular all the measured dynamics of the S-wave
pipi scattering, characterized by broad/overlapping resonances and large
non-resonant background, can be properly included. This paper studies the
extent to which the K-matrix approach is able to reproduce the observed Dalitz
plot and thus help us to understand the underlying dynamics. The results are
discussed, along with their possible implications on the controversial nature
of the sigma meson.


title: Radiative and Electroweak Rare B Decays

abstract:
  This report summarizes the latest experimental results on radiative and
electroweak rare B meson decays. These rare decay processes proceed through the
flavor changing neutral current processes, and thus sensitive to the postulated
new particles in the theories beyond the Standard Model. Experiments at e+ e-
colliders, Belle, BaBar and CLEO, have been playing the dominant role, while
the CDF and D0 experiments have just started to provide new results from
Tevatron Run-II. The most significant achievement is the first observation of
the decay B --> K* l+ l-, which opens a new window to search for new physics in
B meson decays.


title:
Flavour independent search for Higgs bosons decaying into hadronic final
  states in e+e- collisions

abstract:
  A search for the Higgsstrahlung process e+e- -> hZ is described, where the
neutral Higgs boson h is assumed to decay into hadronic final states. In order
to be sensitive to a broad range of models, the search is performed independent
of the flavour content of the Higgs boson decay. The analysis is based on e+e-
collision data collected by the OPAL detector at energies between 192 GeV and
209 GeV. The search does not reveal any significant excess over the Standard
Model background prediction. Results are combined with previous searches at
energies around 91 GeV and at 189 GeV. A limit is set on the product of the
cross-section and the hadronic branching ration of the Higgs boson, as a
function of the Higgs boson mass. Assuming the hZ coupling predicted by the
Standard Model, and a Higgs boson decaying only into hadronic final states, a
lower bound of 104 GeV/c2 is set on the mass at the 95% confidence level.


title: Measurement of the partial widths of the Z into up- and down-type quarks

abstract:
  Using the entire OPAL LEP1 on-peak Z hadronic decay sample, Z -> qbarq gamma
decays were selected by tagging hadronic final states with isolated photon
candidates in the electromagnetic calorimeter. Combining the measured rates of
Z -> qbarq gamma decays with the total rate of hadronic Z decays permits the
simultaneous determination of the widths of the Z into up- and down-type
quarks. The values obtained, with total errors, were Gamma u = 300 ^{+19}_{-18}
MeV and Gamma d = 381 ^{+12}_{-12} MeV. The results are in good agreement with
the Standard Model expectation.


title:
Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in
  quasi-real photoproduction

abstract:
  Evidence for a narrow baryon state is found in quasi-real photoproduction on
a deuterium target through the decay channel p K^0_S --> p pi^+ pi^-. A peak is
observed in the p K^0_S invariant mass spectrum at 1528 +/- 2.6 (stat) +/-2.1
(syst) MeV. Depending on the background model,the naive statistical
significance of the peak is 4--6 standard deviations and its width may be
somewhat larger than the experimental resolution of sigma=4.3 -- 6.2 MeV. This
state may be interpreted as the predicted S=+1 exotic Theta^{+}(uuddbar(s))
pentaquark baryon. No signal for an hypothetical Theta^{++} baryon was observed
in the pK^+ invariant mass distribution. The absence of such a signal indicates
that an isotensor Theta is excluded and an isovector Theta is unlikely.


title: Review of Solar Neutrino Experiments

abstract:
  This paper reviews the constraints on the solar neutrino mixing parameters
with data collected by the Homestake, SAGE, GALLEX, Kamiokande,
SuperKamiokande, and SNO experiments. An emphasis will be given to the global
solar neutrino analyses in terms of matter-enhanced oscillation of two active
flavors. The results to-date, including both solar model dependent and
independent measurements, indicate that electron neutrinos are changing to
other active types on route to the Earth from the Sun. The total flux of solar
neutrinos is found to be in very good agreement with solar model calculations.
Future measurements will focus on greater accuracy for mixing parameters and on
better sensitivity to low neutrino energies.


title: Selection of Tau Leptons with the CDF II Trigger System

abstract:
  In Run II of the CDF experiment, traditional dilepton triggers are enriched
by lepton (electrons or muons) plus track, di-tau and tau plus missing
transverse energy triggers at Level-3 dedicated to physical processes including
tau leptons. We describe these triggers, along with their physics motivations,
implementation and cross-sections and report on their initial performance.


title: W Boson Polarisation at LEP2

abstract:
  Elements of the spin density matrix for W bosons in e+e- -> W+W- -> qqln
events are measured from data recorded by the OPAL detector at LEP. This
information is used calculate polarised differential cross-sections and to
search for CP-violating effects. Results are presented for W bosons produced in
e+e- collisions with centre-of-mass energies between 183 GeV and 209 GeV. The
average fraction of W bosons that are longitudinally polarised is found to be
(23.9 +- 2.1 +- 1.1)% compared to a Standard Model prediction of (23.9 +-
0.1)%. All results are consistent with CP conservation.


title:
Search for QCD-instanton induced events in deep inelastic ep scattering
  at HERA

abstract:
  A search for QCD-instanton-induced events in deep inelastic ep scattering has
been performed with the ZEUS detector at the HERA collider, using data
corresponding to an integrated luminosity of 38 pb^{-1}. A kinematic range
defined by cuts on the photon virtuality, Q^2 > 120 GeV^2, and on the Bjorken
scaling variable, x > 10^{-3}, has been investigated. The QCD-instanton induced
events were modelled by the Monte Carlo generator QCDINS. A
background-independent, conservative 95% confidence level upper limit for the
instanton cross section of 26 pb is obtained, to be compared with the
theoretically expected value of 8.9 pb.


title: Status of the PICASSO Project

abstract:
  The Picasso project is a dark matter search experiment based on the
superheated droplet technique. Preliminary runs performed at the Picasso Lab in
Montreal have showed the suitability of this detection technique to the search
for weakly interacting cold dark matter particles. In July 2002, a new phase of
the project started. A batch of six 1-liter detectors with an active mass of
approximately 40g was installed in a gallery of the SNO observatory in Sudbury,
Ontario, Canada at a depth of 6,800 feet (2,070m). We give a status report on
the new experimental setup, data analysis, and preliminary limits on
spin-dependent neutralino interaction cross section.


title: Neutron Flux at the Gran Sasso Underground LaboratoryRevisited

abstract:
  The neutron flux induced by radioactivity at the Gran Sasso underground
laboratory is revisited. We have performed calculations and Monte Carlo
simulations; the results offer an independent check to the available
experimental data reported by different authors, which vary rather widely. This
study gives detailed information on the expected spectrum and on the
variability of the neutron flux due to possible variations of the water content
of the environment.


title: Measurement of the Branching Fraction for B- --> D0 K*-

abstract:
  We present a measurement of the branching fraction for the decay B- --> D0
K*- using a sample of approximately 86 million BBbar pairs collected by the
BaBar detector from e+e- collisions near the Y(4S) resonance. The D0 is
detected through its decays to K- pi+, K- pi+ pi0 and K- pi+ pi- pi+, and the
K*- through its decay to K0S pi-. We measure the branching fraction to be
B.F.(B- --> D0 K*-)= (6.3 +/- 0.7(stat.) +/- 0.5(syst.)) x 10^{-4}.


title: Top Quark Measurements at the Fermilab Tevatron

abstract:
  The top quark, discovered at the Tevatron in 1995, is a very interesting
particle. Precise measurement of the top properties using large data samples
will allow stringent tests of the Standard Model and offer a unique window on
new physics. In this report will be reviewed the status of the current
knowledge of the top quark as provided by the Run I results of the CDF and D0
experiment. A first look at various preliminary measurements obtained with data
collected during Run II will be also presented.


title: |Vcb|, |Vub|, and Hqet at Cleo

abstract:
  I report results from the CLEO collaboration on semileptonic B decays,
highlighting measurements of the Cabibbo-Kobayashi-Maskawa matrix elements Vcb
and Vub. I describe the techniques used to obtain the recent improvements in
precision for these measurements, including the use of the b -> s gamma photon
spectrum to reduce hadronic uncertainties in semileptonic B decays. I also
report new measurements of Vcb using the inclusive semileptonic branching
fraction BF(B -> X e nu) and of Vub through study of the q^2 dependence of B ->
pi l nu and B -> rho l nu.


title: Recent CLEO CKM Results

abstract:
  I report B physics results from the CLEO collaboration, highlighting
measurements of the Cabibbo-Kobayashi-Maskawa matrix elements |Vcb| and |Vub|.
I report a recent measurement of |Vub| through study of the q^2 dependence of B
-> pi l nu and B -> rho l nu. I also describe new measurements of the inclusive
semileptonic branching fraction BF(B -> X e nu) and of moments of the hadronic
invariant mass spectrum in B -> X l nu, with impact on |Vcb|.


title:
Measurements of Branching Fractions and CP-Violating Asymmetries in B
  Meson Decays to Charmless Two-Body States Containing a K0

abstract:
  We present measurements of branching fractions and \CP-violating asymmetries
in decays of $B$ mesons to two-body final states containing a \Kz. The results
are based on a data sample of approximately 88 million \upsbb decays collected
with the \babar detector at the \pep2 asymmetric-energy $B$ Factory at SLAC. We
measure $\BR(\Bp\to\Kz\pip) = (22.3 \pm 1.7 \pm 1.1)\times 10^{-6}$,
$\BR(\Bz\to\Kz\piz) = (11.4\pm 1.7\pm 0.8)\times 10^{-6}$, $\BR(\Bp\to\Kzb\Kp)
< 2.5\times 10^{-6}$, and $\BR(\Bz\to\KzKzb) < 1.8\times 10^{-6}$, where the
first uncertainty is statistical and the second is systematic, and the upper
limits are at the 90% confidence level. In addition, the following
\CP-violating asymmetries have been measured: ${\cal A}_{CP}(\Bp\to\Kz\pip) =
-0.05 \pm 0.08 \pm 0.01$ and ${\cal A}_{CP}(\Bz\to\Kz\piz) = 0.03 \pm 0.36\pm
0.11$.


title:
Measurement of $\sigma(e^+e^- \to \pi^+\pi^-)$ at DA$\Phi$NE with the
  radiative return

abstract:
  The measurement of hadronic cross sections at low centre-of-mass energies is
currently attracting much interest because of the r\^o{}le these measurements
play in the theoretical evaluation of the anomalous magnetic moment of the
muon. The KLOE experiment at the DA$\Phi$NE $\phi$-factory in Frascati aims to
determine the cross section of the dominant contribution $e^{+}e^{-} \to
\pi^{+}\pi^{-}$ at energies below 1 GeV exploiting the radiative return from
the $\phi$ to the $\rho$ and $\omega$ mesons. This method has systematic errors
completely different from previous measurements and allows a cross check of
existing data in this energy region. The method and results on both the
differential cross section for $e^{+}e^{-} \to \pi^{+}\pi^{-}\gamma$ and the
total cross section for $e^{+}e^{-} \to \pi^{+}\pi^{-}$ are presented.


title:
Beauty photoproduction measured using decays into muons in dijet events
  in ep collisions at $\sqrt{s}$=318 GeV

abstract:
  The photoproduction of beauty quarks in events with two jets and a muon has
been measured with the ZEUS detector at HERA using an integrated luminosity of
110 pb$^{- 1}$. The fraction of jets containing b quarks was extracted from the
transverse momentum distribution of the muon relative to the closest jet.
Differential cross sections for beauty production as a function of the
transverse momentum and pseudorapidity of the muon, of the associated jet and
of $x_{\gamma}^{jets}$, the fraction of the photon's momentum participating in
the hard process, are compared with MC models and QCD predictions made at
next-to-leading order. The latter give a good description of the data.


title: Observation of eta_c^{prime} Production in gamma gamma Fusion at CLEO

abstract:
  We report on the observation of the eta_{c}^{prime}(2^{1}S_{0}), the radial
excitation of eta_{c}(1^{1}S_{0}) ground state of charmonium, in the two-photon
fusion reaction gamma gamma rightarrow eta_{c}^{prime} rightarrow
K_{S}^{0}K^{pm}pi^{mp} in 13.6 fb^{-1} of CLEO II/II.V data and 13.1 fb^{-1} of
CLEO III data. We obtain M(eta_{c}^{prime})=3642.9 pm 3.1(stat) pm1.5(syst)
MeV, and M(eta_{c})=2981.8 pm1.3(stat) pm 1.5(syst) MeV. The corresponding
values of hyperfine splittings between ^{1}S_{0} and ^{3}S_{1} states are
\Delta M_{hf}(1S)=115.1 pm 2.0 MeV, Delta M_{hf}(2S)=43.1 pm3.4 MeV. Assuming
that the eta_{c} and eta_{c}^{prime} have equal branching fractions to K_{S}K
pi, we obtain Gamma_{gamma gamma}(eta_{c}^{prime})=1.3 pm 0.6 keV.


title: Search for K_S K_S in J/psi and psi(2S) decays

abstract:
  The CP violating processes J/psi-->K_S K_S and psi(2S)-->K_S K_S are searched
for using samples of 58 million J/psi and 14 million psi(2S) events collected
with the Beijing Spectrometer at the Beijing Electron Positron Collider. No
signal is observed, and upper limits on the decay branching ratios are
determined to be BR(J/psi-->K_S K_S) < 1.0x10^{-6} and BR(psi(2S)-->K_S K_S) <
4.6x10^{-6} at the 95% confidence level.


title:
Measurement of Masses and Widths of Excited Charm Mesons $D_2^*$ and
  Evidence for Broad States

abstract:
  Using data from the FOCUS experiment we analyze the $D^+\pi^-$ and $D^0\pi^+$
invariant mass distributions. We measure the $D_2^{*0}$ mass $M_{D_2^{*0}} =
(2464.5 \pm 1.1 \pm 1.9) \mev$ and width $\Gamma_{D_2^{*0}} = (38.7 \pm 5.3 \pm
2.9) \mev$, and the $D_2^{*+}$ mass $ M_{D_2^{*+}} = (2467.6 \pm 1.5 \pm 0.76)
\mev$ and width $ \Gamma_{D_2^{*+}} = (34.1 \pm 6.5 \pm 4.2) \mev$. We find
evidence for broad structures over background in both the neutral and charged
final state. If each is interpreted as evidence for a single L=1, $j_q=1/2$
excited charm meson resonance, the masses and widths are $M_{1/2}^0 =(2407 \pm
21 \pm 35) \mev$, $\Gamma_{1/2}^0 = (240 \pm 55 \pm 59) \mev$, and $M_{1/2}^+ =
(2403 \pm 14 \pm 35) \mev$ $\Gamma_{1/2}^+ = (283 \pm 24 \pm 34) \mev$,
respectively.


title:
Low Energy Neutrino Cross Sections: Comparison of Various Monte Carlo
  Predictions to Experimental Data

abstract:
  Charged and neutral current low energy neutrino cross section predictions
from a variety of Monte Carlo generators in present use are compared against
existing experimental data. Comparisons are made to experimental data on
quasi-elastic, resonant and coherent single pion production, multiple pion
production, single kaon production, and total inclusive cross sections, and are
restricted to the case of muon neutrino scattering off free nucleons.


title: Global Fits of the CKM Matrix

abstract:
  We report upon the present status of global fits to Cabibbo-Kobayashi-Maskawa
matrix.


title: Progress on R measurement through ISR with BaBar

abstract:
  The status of the ISR analysis with BaBar is presented. Preliminary results
are given on the process e+e- --> 2pi+ 2pi- and J/psi decays including a
determination of its total width and the branching ratios into 2pi+ 2pi-, K+ K-
pi+ pi-, and 2K+ 2K- modes.


title: Spectral functions from hadronic tau decays and QCD

abstract:
  Hadronic decays of the $\tau$ lepton provide a clean environment to study
hadron dynamics in an energy regime dominated by resonances. The interesting
information is captured in the spectral functions. Recent results from ALEPH on
exclusive channels are presented, with emphasis on the $\pi \piz$ final state
which plays a crucial role for the determination of the hadronic contribution
to the muon anomalous magnetic moment. A comparison between $2\pi$ spectral
functions obtained in $\tau$ decays (after corrections for isospin-breaking)
and $e^+e^-$ annihilation reveals some discrepancy in the line shape of the
$\rho$ resonance which can be attributed to different pole mass values for the
charged and neutral $\rho$'s, which are determined through a robust fitting
procedure. However, after applying this correction, the normalization of the
two spectral functions differ by 3.3%. Inclusive spectral functions are the
basis for QCD analyses, which deliver an accurate determination of the strong
coupling constant, quantitative information on nonperturbative contributions
and a measurement of the mass of the strange quark.


title:
Updated estimate of the muon magnetic moment using revised results from
  e+e- annihilation

abstract:
  A new evaluation of the hadronic vacuum polarization contribution to the muon
magnetic moment is presented. We take into account the reanalysis of the
low-energy \ee annihilation cross section into hadrons by the CMD-2
Collaboration. The agreement between \ee and $\tau$ spectral functions in the
$\pi\pi$ channel is found to be much improved. Nevertheless, significant
discrepancies remain in the center-of-mass energy range between 0.85 and $1.0
{\rm GeV}/c^2$.The deviations from the measurement at BNL are found to be
$(22.1 \pm 7.2 \pm 3.5 \pm 8.0)~10^{-10}$ (1.9 $\sigma$) and $(7.4 \pm 5.8 \pm
3.5 \pm 8.0)~10^{-10}$ (0.7 $\sigma$) for the \ee- and $\tau$-based estimates,
respectively, where the second error is from the nonhadronic contributions and
the third one from the BNL measurement. Taking into account the $\rho^- -
\rho^0$ mass splitting determined from the measured spectral functions
increases the $\tau$-based estimate and leads to a worse discrepancy between
the two estimates.


title: New Measurements of the Ds to Phi mu nu Form Factor Ratios

abstract:
  Using a large sample of Ds to Phi mu nu decays collected by the FOCUS
photoproduction experiment at Fermilab, we present new measurements of two
semileptonic form factor ratios: rV and r2. We find rV = 1.549 \pm 0.250 \pm
0.145 and r2 = 0.713 \pm 0.202 \pm 0.266. These values are consistent with the
rV and r2 form factors measured for the process D+ to K*bar mu nu.


title: Search for the Rare Leptonic Decay B+ --> mu+ nu_mu

abstract:
  We have performed a search for the rare leptonic decay B+ --> mu+ nu_mu with
data collected at the Upsilon(4S) resonance by the BABAR experiment at the
PEP-II storage ring. In a sample of 88.4 million BBbar pairs, we find no
significant evidence for a signal and set an upper limit on the branching
fraction BR(B+ --> mu+ nu_mu) < 6.6 x 10^{-6} at the 90% confidence level.


title:
High-Q^2 neutral current cross sections in e^+p deep inelastic
  scattering at sqrt{s}=318 GeV

abstract:
  Cross sections for e^+p neutral current deep inelastic scattering have been
measured at a centre-of-mass energy of sqrt{s}=318 GeV with the ZEUS detector
at HERA using an integrated luminosity of 63.2 pb^-1. The double-differential
cross section, d^2sigma/dxdQ^2, is presented for 200 GeV^2 < Q^2 < 30000 GeV^2
and for 0.005 < x < 0.65. The single-differential cross-sections dsigma/dQ^2,
dsigma/dx and dsigma/dy are presented for Q^2 > 200 GeV^2. The effect of
Z-boson exchange is seen in dsigma/dx measured for Q^2 > 10000 GeV^2. The data
presented here were combined with ZEUS e^+p neutral current data taken at
sqrt{s}=300 GeV and the structure function F_2^{em} was extracted. All results
agree well with the predictions of the Standard Model.


title:
Exotic Meson Production in the $f_{1}(1285)\pi^{-}$ System observed in
  the Reaction $\pi^{-} p \to \eta\pi^{+}\pi^{-}\pi^{-} p$ at 18 GeV/c

abstract:
  This letter reports results from the partial wave analysis of the
$\pi^{-}\pi^{-}\pi^{+}\eta$ final state in $\pi^{-}p$ collisions at 18GeV/c.
Strong evidence is observed for production of two mesons with exotic quantum
numbers of spin, parity and charge conjugation, $J^{PC} = 1^{-+}$ in the decay
channel $f_{1}(1285)\pi^{-}$. The mass $M = 1709 \pm 24 \pm 41$ MeV/c^2 and
width $\Gamma = 403 \pm 80 \pm 115$ MeV/c^2 of the first state are consistent
with the parameters of the previously observed $\pi_{1}(1600)$. The second
resonance with mass $M = 2001 \pm 30 \pm 92$ MeV/c^2 and width $\Gamma = 333
\pm 52 \pm 49$ MeV/c^2 agrees very well with predictions from theoretical
models. In addition, the presence of $\pi_{2}(1900)$ is confirmed with mass $M
= 2003 \pm 88 \pm 148$ MeV/c^2 and width $\Gamma = 306 \pm 132 \pm 121$ MeV/c^2
and a new state, $a_{1}(2096)$, is observed with mass $M = 2096 \pm 17 \pm 121$
MeV/c^2 and width $\Gamma = 451 \pm 41 \pm 81$ MeV/c^2. The decay properties of
these last two states are consistent with flux tube model predictions for
hybrid mesons with non-exotic quantum numbers.


title:
Wess-Zumino Current and the Structure of the Decay tau^- to K^-K^+ pi^-
  nu_tau

abstract:
  We present the first study of the vector (Wess-Zumino) current in tau^-\to
K^-pi^-K^+\nu_\tau decay using data collected with the CLEO III detector at the
Cornell Electron Storage Ring. We determine the quantitative contributions to
the decay width from the vector and axial vector currents. Within the framework
of a model by Kuhn and Mirkes, we identify the quantitative contributions to
the total decay rate from the intermediate states \omega\pi, \rho^{(\prime)}\pi
and K^{*}K.


title: Study of high momentum eta' production in B -> eta' X_s

abstract:
  We measure the branching fraction for the charmless semi-inclusive process B
-> eta' X_s, where the eta' meson has a momentum in the range 2.0 to 2.7 GeV/c
in the Upsilon(4S) center-of-mass frame and X_s represents a system comprising
a kaon and zero to four pions. We find B(B -> eta'
X_s)=(3.9+/-0.8(stat)+/-0.5(syst)+/-0.8(model)).10^{-4}. We also obtain the X_s
mass distribution and find that it tends to favor models predicting high
masses.


title: Searches for Neutral Higgs Boson and Interpretations in the MSSM at LEP

abstract:
  This paper discusses recent publications of the LEP collaborations DELPHI, L3
and OPAL on searches for Higgs bosons motivated by MSSM scenarios as well as
their interpretation in the MSSM. With the final publication of the LEP
collaborations available or awaited, more and more interpretations in different
MSSM models, including both CP conserving and CP violating, become available.
Also specialized analyses close open areas in the parameter space. In the same
time, better theoretical calculations with an increased maximal mass of the
Higgs boson were presented. Both the new scenarios as well as the new
theoretical limit on $m_{\mathrm{h}}$ has consequences for the limits from LEP.
The searches, the models in which they are interpreted and the implications of
the LEP results for future SUSY searches, especially on the $\tan\beta$ limit,
are presented here.


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

abstract:
  The anomalous magnetic moment of the negative muon has been measured to a
precision of 0.7 parts per million (ppm) at the Brookhaven Alternating Gradient
Synchrotron. This result is based on data collected in 2001, and is over an
order of magnitude more precise than the previous measurement of the negative
muon. The result a_mu= 11 659 214(8)(3) \times 10^{-10} (0.7 ppm), where the
first uncertainty is statistical and the second is sytematic, is consistend
with previous measurements of the anomaly for the positive and negative muon.
The average for the muon anomaly a_{mu}(exp) = 11 659 208(6) \times 10^{-10}
(0.5ppm).


title:
Search for contact interactions, large extra dimensions and finite quark
  radius in ep collisions at HERA

abstract:
  A search for physics beyond the Standard Model has been performed with
high-Q^2 neutral current deep inelastic scattering events recorded with the
ZEUS detector at HERA. Two data sets, e^+ p \to e^+ X and e^- p \to e^- X, with
respective integrated luminosities of 112 pb^-1 and 16 pb^-1, were analyzed.
The data reach Q^2 values as high as 40000 GeV^2. No significant deviations
from Standard Model predictions were observed. Limits were derived on the
effective mass scale in eeqq contact interactions, the ratio of leptoquark mass
to the Yukawa coupling for heavy leptoquark models and the mass scale parameter
in models with large extra dimensions. The limit on the quark charge radius, in
the classical form factor approximation, is 0.85 10^-16 cm.


title: Measurement of Dijet Production at Low Q^2 at HERA

abstract:
  Triple differential dijet cross sections in e^\pm p interactions are
presented in the region of photon virtualities 2<Q^2<80GeV^2, inelasticities
0.1<y<0.85, jet transverse energies E_T1>7GeV, E_T2>5GeV, and pseudorapidities
-2.5 < eta_1^*, eta_2^* <0. The measurements are made in the gamma^* p
centre-of-mass frame, using an integrated luminosity of 57pb^-1. The data are
compared with NLO QCD calculations and LO Monte Carlo programs with and without
a resolved virtual photon contribution. NLO QCD calculations fail to describe
the region of low Q^2 and low jet transverse energies, in contrast to a LO
Monte Carlo generator which includes direct and resolved photon interactions
with both transversely and longitudinally polarised photons. Initial and final
state parton showers are tested as a mechanism for including higher order QCD
effects in low E_T jet production.


title: Determination of BR(chi_{cJ} --> p \bar{p}) in psi(2S) decays

abstract:
  The processes psi(2S) --> gamma chi_{cJ}, chi_{cJ} --> p pbar (J=0,1,2) are
studied using a sample of 14X10^6 psi(2S) decays collected with the Beijing
Spectrometer at the Beijing Electron-Positron Collider. Very clear chi_{c0},
chi_{c1} and chi_{c2} signals are observed, and the branching fractions
BR(chi_{cJ} --> p pbar) (J=0,1,2) are determined to be (27.1^{+4.3}_{-3.9}\pm
4.7)X10^{-5},
  (5.7^{+1.7}_{-1.5}\pm0.9)X10^{-5}, and (6.5^{+2.4}_{-2.1}\pm1.0)X10^{-5},
respectively, where the first errors are statistical and the second are
systematic.


title: Gaugino searches and constraints on supersymmetry

abstract:
  The negative outcome of gaugino searches at LEP has been one of the most
disappointing results for fans of supersymmetric models. In the framework of
minimal supersymmetric models with GUT unification assumptions, the combined
absence of supersymmetry and Higgs signals in the LEP data, sets stringent
constraints on the models parameter space, and lower limits on the mass of the
lightest neutralino and of other supersymmetric particles. All limits are given
at 95% Confidence Level.


title: Gauge Boson Self Couplings and four fermion final states at LEP

abstract:
  Four-fermion productions measured in the LEP2 data are reviewed. The total
and differential cross-section yields represent the first clear evidence for
the existence of gauge boson self couplings, in support of the non-abelian
SU(2)xU(1) structure of the electroweak model, at the percent level.


title: Are there S=-2 Pentaquarks?

abstract:
  Recent evidence for pentaquark baryons in the channels $\Xi^-\pi^-$,
$\Xi^-\pi^+$ and their anti-particles claimed by the NA49 collaboration is
critically confronted with the vast amount of existing data on $\Xi$
spectroscopy which was accumulated over the past decades. It is shown that the
claim is at least partially inconsistent with these data. In addition two
further exotic channels of the pentaquark type available in the NA49 data are
investigated. It is argued that this study leads to internal inconsistency with
the purported signals.


title:
Hadronic Decays of J/psi(1^{3}S_{1}) and psi'(2^{3}S_{1}) Through
  Vitrual Photons

abstract:
  The latest data for J/psi and psi' leptonic decays, and the latest
measurement of the R-parameter are used to show that the present summary values
of the branching ratios of the virtual photon mediated hadronic decays of both
J/psi and psi' are overestimated. The current best results are B(J/psi ->
gamma^{*} -> h) = (13.3 +- 0.3)%, and B(psi' -> gamma^{*} -> h) = (1.65 +-
0.10)%.


title: Electric Dipole Moments of Fundamental Particles

abstract:
  Electric dipole moment (EDM) experiments are at the fore-front of search for
physics beyond the standard model. The next generation searches promise to
improve by several orders of magnitude the current EDM sensitivity levels.


title: Photoproduction of $D^{*\pm}$ mesons associated with a leading neutron

abstract:
  The photoproduction of $D^{*\pm} (2010)$ mesons associated with a leading
neutron has been observed with the ZEUS detector in $ep$ collisions at HERA
using an integrated luminosity of 80 pb$^{-1}$. The neutron carries a large
fraction, {$x_L>0.2$}, of the incoming proton beam energy and is detected at
very small production angles, {$\theta_n<0.8$ mrad}, an indication of
peripheral scattering. The $D^*$ meson is centrally produced with
pseudorapidity {$|\eta|<1.5$}, and has a transverse momentum {$p_{\it T} > 1.9$
GeV}, which is large compared to the average transverse momentum of the neutron
of 0.22 GeV. The ratio of neutron-tagged to inclusive $D^*$ production is
$8.85\pm 0.93({\rm stat.})^{+0.48}_{-0.61}({\rm syst.})\%$ in the photon-proton
center-of-mass energy range {$130 <W<280$ GeV}. The data suggest that the
presence of a hard scale enhances the fraction of events with a leading neutron
in the final state.


title: Constraints on Neutrino Mixing Parameters with the SNO Data

abstract:
  This paper reviews the constraints imposed on the solar neutrino mixing
parameters by data collected by the Sudbury Neutrino Observatory (SNO). The SNO
multivariate analysis is reviewed. The global solar neutrino analysis is
emphasized in terms of matter-enhanced oscillation of two active flavors. An
outline of how SNO uses the data to produce oscillation contour plots and how
to include the relevant correlations for the new salt data in similar
oscillation analyses is summarized.


title: Measurements of Six-Body Hadronic Decays of the D^0 Charmed Meson

abstract:
  Using data collected by the FOCUS experiment at Fermilab, we report the
discovery of the decay modes D^0 --> K- pi+ pi+ pi+ pi- pi- and D^0 --> pi+ pi+
pi+ pi- pi- pi-. With a sample of 48 +/- 10 reconstructed D^0 --> K- pi+ pi+
pi+ pi- pi- decays and 149 +/- 17 reconstructed D^0 --> pi+ pi+ pi+ pi- pi- pi-
decays, we measure the following relative branching ratios:
  ${\Gamma (D^0 \to K^- \pi^+ \pi^+ \pi^+ \pi^- \pi^-) / \Gamma (D^0 \to K^-
\pi^+ \pi^+ \pi^-)} = (2.70 \pm 0.58 \pm 0.38) \times 10^{-3}$
  ${\Gamma (D^0 \to \pi^+ \pi^+ \pi^+ \pi^- \pi^- \pi^-) / \Gamma (D^0 \to K^-
\pi^+ \pi^+ \pi^-)} = (5.23 \pm 0.59 \pm 1.35) \times 10^{-3}$
  ${\Gamma (D^0 \to \pi^+ \pi^+ \pi^+ \pi^- \pi^- \pi^-) / \Gamma (D^0 \to K^-
\pi^+ \pi^+ \pi^+ \pi^- \pi^-)} = 1.93 \pm 0.47 \pm 0.48$
  The first errors are statistical and the second are systematic. The branching
fraction of the Cabibbo suppressed six-body decay mode is measured to be a
factor of two higher than the branching fraction of the Cabibbo favored
six-body decay mode.


title: Jet Physics at Tevatron

abstract:
  An overview of Run I jet physics at the ppbar Fermilab Tevatron Collider with
a particular emphasis on inclusive jet cross section measurements is given. The
impact of these studies on PDFs constrain from global fits is underlined.
Preliminary results on inclusive jet and di-jet mass cross section measurements
in Run II are then summarized.


title: Heavy Flavor Production at the Tevatron

abstract:
  Using a subset of the current Run II data, the CDF and \D0 have performed
several measurements on heavy flavor production. In this paper, we present a
new measurement of prompt charm meson production by CDF. We also report the
latest CDF II measurements of inclusive $J/\Psi$ production and $b$-production
without requirement of minimum transverse momentum on $J/\Psi$ and $b$-quark.
They are the first measurements of the total inclusive $J/\Psi$ and $b$ quark
cross section in the central rapidity region at a hadron collider. The results
of $J/\Psi$ cross section as a function of rapidity, and $b$-jet production
cross section measured by \D0 are also reviewed.


title:
Searches for invisibly decaying Higgs bosons with the DELPHI detector at
  LEP

abstract:
  Searches for HZ production with the Higgs boson decaying into an invisible
final state were performed using the data collected by the DELPHI experiment at
centre-of-mass energies between 188 GeV and 209 GeV. Both hadronic and leptonic
final states of the Z boson were analysed. In addition to the search for a
heavy Higgs boson, a dedicated search for a light Higgs boson down to 40
GeV/c^2 was performed. No signal was found. Assuming the Standard Model HZ
production cross-section, the mass limit for invisibly decaying Higgs bosons is
112.1 GeV/c^2 at 95% confidence level. An interpretation in the Minimal
Supersymmetric extension of the Standard Model (MSSM) and in a Majoron model is
also given.


title:
Measurement of |V_cb| using the semileptonic decay anti-B0d -> D*+ l-
  anti-nu_l

abstract:
  Data from Z decays in DELPHI have been searched for anti-B0d -> D*+ l-
anti-nu_l with the D*+ decaying to D0 pi+ and D0 -> K- pi+, K- pi+ pi+ pi- or
K- pi+ (pi0). These events are used to measure the CKM matrix element |V_cb|
and the form factor slope, rho_{A_1}^2: F_D*(1)|Vcb| = 0.0392 +/- 0.0018 +/-
0.0023; rho_{A_1}^2 = 1.32 +/- 0.15 +/- 0.33 corresponding to a branching
fraction: BR(anti-B0d -> D*+ l- anti-nu_l) = (5.90 +/- 0.22 +/- 0.50)%.
Combining these and previous DELPHI measurements gives: F_D*(1)|Vcb| = 0.0377
+/- 0.0011 +/- 0.0019, rho_{A_1}^2 = 1.39 +/- 0.10 +/- 0.33 and BR(anti-B0d ->
D*+ l- anti-nu_l) = (5.39 +/- 0.11 +/- 0.34)%. Using F_{D*}(1) = 0.91 +/- 0.04,
yields: |Vcb| = 0.0414 +/- 0.0012(stat.) +/- 0.0021(syst.) +/- 0.0018(theory).
The b-quark semileptonic branching fraction into a D*+ emitted from higher mass
charmed excited states has also been measured to be: BR(b -> D*+ X l-
anti-nu_l) = (0.67 +/- 0.08 +/- 0.10)%.


title:
Observation of narrow baryon resonance decaying into $pK^0_s$ in
  pA-interactions at $70 GeV/c$ with SVD-2 setup

abstract:
  SVD-2 experiment data have been analyzed to search for an exotic baryon
state, the $\Theta^+$-baryon, in a $pK^0_s$ decay mode at $70 GeV/c$ on IHEP
accelerator. The reaction $pA \to pK^0_s+X$ with a limited multiplicity was
used in the analysis. The $pK^0_s$ invariant mass spectrum shows a resonant
structure with $M=1526\pm3(stat.)\pm 3(syst.) MeV/c^2$ and $\Gamma < 24
MeV/c^2$. The statistical significance of this peak was estimated to be of $5.6
\sigma$. The mass and width of the resonance is compatible with the recently
reported $\Theta^+$- baryon with positive strangeness which was predicted as an
exotic pentaquark ($uudd\bar{s}$) baryon state. The total cross section for
$\Theta^+$ production in pN-interactions for $X_F\ge 0$ was estimated to be
$(30\div120) \mu b$ and no essential deviation from A-dependence for inelastic
events $(\sim A^{0.7})$ was found.


title:
A Precise Measurement of the B+, B0 and Mean b-hadron Lifetime with the
  DELPHI Detector at LEP I

abstract:
  Final results from the DELPHI Collaboration on the lifetime of B+ and B0
mesons and the mean b-hadron lifetime, are presented using the data collected
at the Z0 peak in 1994 and 1995. Elaborate, inclusive, secondary vertexing
methods have been employed to ensure a b-hadron reconstruction with good
efficiency. To separate samples of B+ and B0 mesons, high performance neural
network techniques are used that achieve very high purity signals. The results
obtained are: tau_B+ = 1.624 +/- 0.014 (stat) +/- 0.018 (syst) ps tau_B0 =
1.531 +/- 0.021 (stat) +/- 0.031 (syst) ps tau_B+/tau_B0 = 1.060 +/- 0.021
(stat) +/- 0.024 (syst) and for the average b-hadron lifetime: tau_b = 1.570
+/- 0.005 (stat) +/- 0.008 (syst) ps.


title:
Search for Chargino and Neutralino Production at sqrt(s) = 192-209 GeV
  at LEP

abstract:
  Approximately 438 pb-1 of e+e- data from the OPAL detector, taken with the
LEP collider running at centre-of-mass energies of 192-209 Gev, are analyzed to
search for evidence of chargino pair production, e+e- -> tilde chi^+_1 tilde
chi^-_1, or neutralino associated production, e+e- -> tilde chi^0_2 tilde
chi^0_1. Limits are set at the 95% confidence level on the product of the
cross-section for the process e+e- -> tilde chi^+_1 tilde chi^-_1 and its
branching ratios to topologies containing jets and missing energy, of jest with
a lepton and missing energy, and on the product of the cross-section for e+e-
-> tilde chi^0_2 tilde chi^0_1 and its branching ratio to jets. R-parity
conservation is assumed throughout this paper. When these results are
interpreted in the context of the Constrained Minimal Supersymmetric Standard
Model, limits are also set on the masses of the tilde chi^+-_1, tilde chi^0_1
and tilde chi^0_2, and regions of the parameter space of the model are ruled
out. Nearly model-independent limits are also set at the 95% confidence level
on sigma(e+e- -> tilde chi^+_1 tilde chi^-_1) with the assumption that each
chargino decays via a W boson, and on sigma(e+e- -> tilde chi^0_2 tilde
chi^0_1) with the tilde chi^0_2 assumed to decay via a Z^0.


title:
Measurement of the Xi0 -> Lambda gamma Decay Asymmetry and Branching
  Fraction

abstract:
  In data taken with the NA48 experiment at the CERN SPS in 1999, 730
candidates of the weak radiative hyperon decay Xi0 -> Lambda gamma have been
found with an estimated background of 58+-8 events. From these events the Xi0
-> Lambda gamma decay asymmetry has been determined to alpha(Xi0 -> Lambda
gamma) = -0.78 +- 0.18_stat +- 0.06_syst, which is the first evidence of a
decay asymmetry in Xi0 -> Lambda gamma. The branching fraction of the decay has
been measured to be Br(Xi0 -> Lambda gamma) = (1.16 +- 0.05_stat +- 0.06_syst)
x 10^-3.


title:
Measurement of the B^+/B^0 Production Ratio from the Upsilon(4S) Meson
  using B^+ -> J/psi K^+ and B^0 -> J/psi K^{0}_{S} Decays

abstract:
  We report a measurement of the production ratio of charged and neutral B
mesons from Upsilon(4S) decays based on the ratio of efficiency-corrected
yields for the charmonium modes J/psi K^+ and J/psi K^{0}_{S} with 81.9 fb^-1
of data collected with the BABAR detector on the Upsilon(4S) resonance at
10.580 GeV. We find a value of 1.006 +/- 0.036 (stat) +/- 0.031 (sys) for the
ratio R^{+/0}=Gamma(Upsilon(4S) -> B^+ B^-)/Gamma(Upsilon(4S)->B^0 B^0bar).


title:
Observation of Large CP Violation and Evidence for Direct CP Violation
  in B0-->pi+pi- Decays

abstract:
  We report the first observation of CP-violating asymmetries in B0 --> pi+pi-
decays based on a 140 fb-1 data sample collected at the Upsilon(4S) resonance
with the Belle detector at the KEKB asymmetric-energy e+e- collider. We
reconstruct one neutral B meson as a B0 --> pi+pi- CP eigenstate and identify
the flavor of the accompanying B meson from its decay products. We apply an
unbinned maximum likelihood fit to the distribution of the time intervals
between the two B meson decay points. The fit yields the CP-violating asymmetry
amplitudes Apipi = +0.58+/-0.15(stat)+/-0.07(syst) and Spipi =
-1.00+/-0.21(stat)+/-0.07(syst). We rule out the CP-conserving case,
Apipi=Spipi=0, at a level of 5.2 standard deviations. We also find evidence for
direct CP violation with a significance at or greater than 3.2 standard
deviations for any Spipi value.


title: Intense Source of Slow Positrons

abstract:
  We describe a novel design for an intense source of slow positrons based on
pair production with a beam of electrons from a 10 MeV accelerator hitting a
thin target at a low incidence angle. The positrons are collected with a set of
coils adapted to the large production angle. The collection system is designed
to inject the positrons in a Greaves-Surko trap [1]. Such a source could be the
basis for a series of experiments in fundamental and applied research and would
also be a prototype source for industrial applications which concern the field
of defect characterization in the nanometer scale.