title:
Scaling violations of quark and gluon jet fragmentation functions in
  e+e- annihilations at sqrt(s) = 91.2 and 183-209 GeV

abstract:
  Flavour inclusive, udsc and b fragmentation functions in unbiased jets, and
flavour inclusive, udsc, b and gluon fragmentation functions in biased jets are
measured in e+e- annihilations from data collected at centre-of-mass energies
of 91.2, and 183-209 GeV with the OPAL detector at LEP. The unbiased jets are
defined by hemispheres of inclusive hadronic events, while the biased jet
measurements are based on three-jet events selected with jet algorithms.
Several methods are employed to extract the fragmentation functions over a wide
range of scales. Possible biases are studied in the results are obtained. The
fragmentation functions are compared to results from lower energy e+e-
experiments and with earlier LEP measurements and are found to be consistent.
Scaling violations are observed and are found to be stronger for the
fragmentation functions of gluon jets than for those of quarks. The measured
fragmentation functions are compared to three recent theoretical
next-to-leading order calculations and to the predictions of three Monte Carlo
event generators. While the Monte Carlo models are in good agreement with the
data, the theoretical predictions fail to describe the full set of results, in
particular the b and gluon jet measurements.


title:
Double Helicity Asymmetry in Inclusive Mid-Rapidity neutral pion
  Production for Polarized p+p Collisions at sqrt(s)=200 GeV

abstract:
  We present a measurement of the double longitudinal spin asymmetry in
inclusive pi^0 production in polarized proton-proton collisions at sqrt(s)=200
GeV. The data were taken at the Relativistic Heavy Ion Collider with average
beam polarizations of 26%. The measurements are the first of a program to study
the longitudinal spin structure of the proton, using strongly interacting
probes, at collider energies. The asymmetry is presented for transverse momenta
1-5 GeV/c at mid-rapidity, where next-to-leading order perturbative quantum
chromodynamic (NLO pQCD) calculations describe the unpolarized cross section
well. The observed asymmetry is small and is compared with a NLO pQCD
calculation with a range of polarized gluon distributions.


title:
Search for Pair Production of Light Scalar Top Quarks in p-pbar
  Collisions at sqrt{s}=1.8 TeV

abstract:
  Using 85.2 +/- 3.6 pb^-1 of p-pbar collisions collected at sqrt(s)=1.8 TeV
with the D0 detector at Fermilab's Tevatron Collider, we present the results of
a search for direct pair production of scalar top quarks ~t, the supersymmetric
partners of the top quark. We examined events containing two or more jets and
missing transverse energy, the signature of light scalar top quark decays to
charm quarks and neutralinos. After selections, we observe 27 events while
expecting 31.1 +/- 6.4 events from known standard model processes. Comparing
these results to next-to-leading-order production cross sections, we exclude a
significant region of ~t and neutralino phase space. In particular, we exclude
the ~t mass m_~t < 122 GeV/c^2 for a neutralino mass of 45 GeV/c^2.


title:
Study of the decay B0(B0bar)-->rho+rho-, and constraints on the CKM
  angle alpha

abstract:
  Using a data sample of 89 million Y(4s)-->B0B0bar decays collected with the
BaBar detector at the PEP-II asymmetric B Factory at SLAC, we measure the
B0(B0bar)-->rho+rho- branching fraction as $(30\pm 4 stat \pm 5 syst) \times
10^{-6}$ and a longitudinal polarization fraction of $f_L = 0.99 \pm 0.03 stat
^{+0.04}_{-0.03} syst$. We measure the time-dependent-asymmetry parameters of
the longitudinally polarized component of this decay as $C_L = -0.17\pm 0.27
stat \pm 0.14 syst$ and ${S_L} = -0.42 \pm 0.42 stat \pm 0.14 syst$. We present
constraints on the CKM angle $\alpha$.


title: High statistic measurement of the K- -> pi0 e- nu decay form-factors

abstract:
  The decay K- -> pi0 e- nu is studied using in-flight decays detected with the
ISTRA+ spectrometer. About 920K events are collected for the analysis. The
lambda+ slope parameter of the decay form-factor f+(t) in the linear
approximation (average slope) is measured: lambda+(lin)= 0.02774 +-
0.00047(stat) +- 0.00032(syst). The quadratic contribution to the form-factor
was estimated to be lambda'+ = 0.00084 +- 0.00027(stat) +- 0.00031(syst). The
linear slope, which has a meaning of df+(t)/dt|_{t=0} for this fit, is lambda+
= 0.02324 +- 0.00152(stat) +- 0.00032(syst). The limits on possible tensor and
scalar couplings are derived: f_{T}/f_{+}(0)=-0.012 +- 0.021(stat) +-
0.011$(syst), f_{S}/f_{+}(0)=-0.0037^{+0.0066}_{-0.0056}(stat) +- 0.0041(syst).


title: Plans for Experiments to Measure $\theta_{13}$

abstract:
  New experiments at accelerators and reactors are being designed to search for
a possible non-zero value of the MNS matrix parameter theta_{13}.


title:
Estimation of charm production cross section in hadronic interactions at
  high energies

abstract:
  Results of processing experimental data on charm production in hadron-hadron
interactions are presented. The analysis is carried out within the frame of
phenomenological model of diffraction production and quark statistics based on
additive quark model (AQM). In low energy region sqrt s = 20 - 40GeV, the cross
sections si_ {pN to c bar cX} (s), si_ {pi N to c bar cX} (s) are fitted by
logarithmic function with the parameters connected by relationship of AQM.
  At collider energies 200, 540, 900, 1800 GeV, the values of si_{bar pp to c
bar cX} (s) were obtained by a quark statistics method from the data on
diffraction dissociation. It is established, that logarithmic function with
universal numerical parameters describes the whole set of low-energy and
high-energy data with high accuracy. The expected values of cross sections are
si_{pp to c bar cX} = 250 pm 40 mu b and 355 pm 57 mu b at TEVATRON energy sqrt
{s} = 1.96 TeV and LHC energy sqrt {s} = 14 TeV accordingly. Opportunities of
use of the obtained results for calibration of a flux of "prompt" muons in
high-energy component of cosmic rays are discussed.


title:
The dependence of dijet production on photon virtuality in ep collisions
  at HERA

abstract:
  The dependence of dijet production on the virtuality of the exchanged photon,
Q^2, has been studied by measuring dijet cross sections in the range 0 < Q^2 <
2000 GeV^2 with the ZEUS detector at HERA using an integrated luminosity of
38.6 pb^-1.
  Dijet cross sections were measured for jets with transverse energy E_T^jet >
7.5 and 6.5 GeV and pseudorapidities in the photon-proton centre-of-mass frame
in the range -3 < eta^jet <0. The variable xg^obs, a measure of the photon
momentum entering the hard process, was used to enhance the sensitivity of the
measurement to the photon structure. The Q^2 dependence of the ratio of low- to
high-xg^obs events was measured.
  Next-to-leading-order QCD predictions were found to generally underestimate
the low-xg^obs contribution relative to that at high xg^obs. Monte Carlo models
based on leading-logarithmic parton-showers, using a partonic structure for the
photon which falls smoothly with increasing Q^2, provide a qualitative
description of the data.


title:
Evidence for an oscillatory signature in atmospheric neutrino
  oscillation

abstract:
  Muon neutrino disappearance probability as a function of neutrino flight
length L over neutrino energy E was studied. A dip in the L/E distribution was
observed in the data, as predicted from the sinusoidal flavor transition
probability of neutrino oscillation. The observed L/E distribution constrained
nu_mu <-> nu_tau neutrino oscillation parameters; 1.9x10^-3 < Delta m^2 <
3.0x10^-3 eV^2 and \sin^2(2theta) > 0.90 at 90% confidence level.


title:
Study of the Absolute Branching Fraction of Upsilon(4S) to anti-B^0 B^0
  with Partial Reconstruction of anti-B^0 to D^{*+} lepton^- anti-nu_{lepton}
  at BABAR

abstract:
  Based on a data sample of 81.7 fb^-1 collected at the Upsilon(4S) resonance
with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we
present the current status of the measurement of the branching fraction of
Upsilon(4S) to B0bar B^0. Our study of the decay was performed through the
exclusive decays B0bar to D^{*+} \ell^{-} bar{\nu}_{\ell} using a partial
reconstruction method, where the D^{*+} is detected only through the soft pion
daughter from the decay D^{*+} to D^{0} pi^{+}.


title:
Measurement of the ttbar Production Cross Section in ppbar Collisions at
  sqrt(s) = 1.96 TeV using Dilepton Events

abstract:
  We report a measurement of the ttbar production cross section using dilepton
events with jets and missing transverse energy in ppbar collisions at a
center-of-mass energy of 1.96 TeV. Using a 197 +/- 12 pb-1 data sample recorded
by the upgraded Collider Detector at Fermilab, we use two complementary
techniques to select candidate events. We compare the number of observed events
and selected kinematical distributions with the predictions of the Standard
Model and find good agreement. The combined result of the two techniques yields
a ttbar production cross section of 7.0 +2.4/-2.1(stat.) +1.6/-1.1(syst.) +/-
0.4(lum.) pb.


title:
A new experiment to search for the invisible decay of the
  orthopositronium

abstract:
  We propose an experiment to search for invisible decays of orthopositronium
(o-Ps) with a 90% confidence sensitivity in the branching ratio as low as
$10^{-8}$. Evidence for this decay mode would unambigously signal new physics:
either the existence of extra--dimensions or fractionally charged particles or
new light gauge bosons. The experimental approach and the detector components
of the proposed experiment are described.


title: Branching fractions and direct CP violation in B -> PP(PV) decays

abstract:
  I present the results of searches for B meson decays into two charmless
mesons. I take into account final states made up of two pseudo-scalar (PP) or
one pseudo-scalar and one vector (PV). The measurements use the data samples
collected and analysed by the B-factory experiments at the $\Upsilon(4S)$
resonance energy: BABAR, Belle and CLEO.


title: A New 76Ge Double Beta Decay Experiment at LNGS

abstract:
  This Letter of Intent has been submitted to the Scientific Committee of the
INFN Laboratori Nazionali del Gran Sasso (LNGS) in March 2004. It describes a
novel facility at the LNGS to study the double beta decay of 76Ge using an
(optionally active) cryogenic fluid shield. The setup will allow to scrutinize
with high significance on a short time scale the current evidence for
neutrinoless double beta decay of 76Ge using the existing 76Ge diodes from the
previous Heidelberg-Moscow and IGEX experiments. An increase in the lifetime
limit can be achieved by adding more enriched detectors, remaining thereby
background-free up to a few 100 kg-years of exposure.


title: Helicity of the W Boson in Lepton+Jets ttbar Events

abstract:
  We examine properties of ttbar candidates events in lepton+jets final states
to establish the helicities of the W bosons in t->W+b decays. Our analysis is
based on a direct calculation of a probability that each event corresponds to a
ttbar final state, as a function of the helicity of the W boson. We use the 125
events/pb sample of data collected by the DO experiment during Run I of the
Fermilab Tevatron collider at sqrt{s}=1.8 TeV, and obtain a longitudinal
helicity fraction of F_0=0.56+/-0.31, which is consistent with the prediction
of F_0=0.70 from the standard model.


title: A Test of CP Symmetry in Positronium

abstract:
  The aim of this CP symmetry test in positronium is to measure the CP
violation amplitude parameter \ccp. This is derived from the measurement of the
asymmetry in an angular distribution of the photons from the decay of the
ortho-positronium in a magnetic field. The Standard Model prediction for \ccp\
is a value of the order of $10^{-9}$. Thus the observation of a larger \ccp\
value would be signal of physics beyond the Standard Model. A previous
measurement has found \ccp consistent with zero, with an uncertainty of $\sim
10^{-2}$. We have investigated the possibility of using the existing
ETHZ-INRM-IN2P3 BGO crystal detector, set-up for positronium physics studies,
to improve the sensitivity on the \ccp measurement. Preliminary calculations
indicate that, using such an apparatus, with some modification, in a magnetic
field of 4 kGauss, \ccp could be measured with an uncertainty in the range
between $\sim 10^{-4}$ and $\sim 10^{-3}$, depending mainly on the uncertainty
in the asymmetry measurement and the angular resolution of the photon
detectors. If \ccp is less than $\sim 10^{-4}$, the experimental technique
outlined here appears to be inadequate to observe a CP violating effect and new
techniques or different observables must be exploited for better sensitivity.


title:
Neutron background in large-scale xenon detectors for dark matter
  searches

abstract:
  Simulations of the neutron background for future large-scale particle dark
matter detectors are presented. Neutrons were generated in rock and detector
elements via spontaneous fission and (alpha,n) reactions, and by cosmic-ray
muons. The simulation techniques and results are discussed in the context of
the expected sensitivity of a generic liquid xenon dark matter detector.
Methods of neutron background suppression are investigated. A sensitivity of
$10^{-9}-10^{-10}$ pb to WIMP-nucleon interactions can be achieved by a
tonne-scale detector.


title: High Sensitivity Anti-Neutrino Detection by KamLAND

abstract:
  Electron anti-neutrinos from nuclear power reactors have been observed by
KamLAND. Data from 0.16 kton-year exposure (145.1 live days) indicates
disappearance of electron anti-neutrinos at 99.95% C.L. in the energy range 2.6
MeV < E < 8.0 MeV. Considering two-flavor neutrino oscillation with CPT
invariance, the only remaining solution to the solar neutrino problem is the
Large Mixing Angle (LMA) solution. In addition a 0.28kton-year exposure (185.5
live days) was searched for electron anti-neutrinos in the energy range 8.3 MeV
< E < 14.8 MeV. No candidate events were found with expected background of 1.1
+- 0.4 events. Assuming that the origin of electron anti-neutrinos in this
energy region comes from 8B solar electron neutrinos, we find an upper limit of
neutrino to anti-neutrino conversion probability of 0.00028.


title:
Proposal to Perform a High-Statistics Neutrino Scattering Experiment
  Using a Fine-grained Detector

abstract:
  The NuMI facility at Fermilab will provide an extremely intense beam of
neutrinos for the MINOS neutrino-oscillation experiment. The spacious and
fully-outfitted MINOS near detector hall will be the ideal venue for a
high-statistics, high-resolution $\nu$ and $\nubar$--nucleon/nucleus scattering
experiment. The experiment described here will measure neutrino cross-sections
and probe nuclear effects essential to present and future neutrino-oscillation
experiments. Moreover, with the high NuMI beam intensity, the experiment will
either initially address or significantly improve our knowledge of a wide
variety of neutrino physics topics of interest and importance to the
elementary-particle and nuclear-physics communities.


title:
Structure for the breathing mode of the nucleon from high energy p-p
  scattering

abstract:
  Spectra of p-p and pi-p scattering at beam momenta between 6 and 30 GeV/c
have been reanalysed. These show strong excitation of N* resonances, the
strongest one corresponding to the "scalar" P11 excitation (breathing mode) at
m_o= 1400+-10 MeV with Gamma= 200+-25 MeV. The result of a strong scalar
excitation is supported by a large longitudinal amplitude S_1/2 extracted from
e-p scattering. From exclusive data on p+p=>p p pi+ pi- a large 2pi-N decay
branch for the P_11 resonance of B_2pi= 75+-20 % has been extracted.
  The differential cross sections were described in a double folding approach,
assuming multi-gluon exchange as the dominant part of the effective interaction
between the constituents of projectile and target. First, the parameters of the
interaction were fitted to elastic scattering; then with this interaction the
inelastic cross sections were described in the distorted wave Born
approximation. A good description of the data requires a surface peaked
transition density, quite different from that of a pure radial mode. In
contrast, the electron scattering amplitude S_1/2 is quite well described by a
breathing mode transition density with radial node. This large difference
between charge and matter transition density suggests, that in p-p scattering
the coupling to the multi-gluon field is much more important than the coupling
to the valence quarks. A multi-gluon (or sea-quark) transition density is
derived, which shows also breathing, indicating a rather complex multi-quark
structure of N and N* including multi-glue (or q^2n qbar ^-2n) creation out of
the g.s. vacuum.


title:
Observation and Properties of the X(3872) Decaying to J/psi pi+ pi- in
  p-p(bar) Collisions at sqrt(s) = 1.96 TeV

abstract:
  We report the observation of the X(3872) in the J/psi pi+pi- channel, with
J/psi decaying to mu+mu- in p-p(bar) collisions at sqrt(s) = 1.96 TeV. Using
approximately 230 pb^-1 of data collected with the Run II D0 detector, we
observe 522 +/- 100 X(3872) candidates. The mass difference between the X(3872)
state and the J/psi is measured to be 774.9 +/- 3.1 (stat.) +/- 3.0 (syst.)
MeV/c^2. We have investigated the production and decay characteristics of the
X(3872), and find them to be similar to those of the psi(2S) state.


title: Measurement of the W Boson Mass at LEP

abstract:
  The mass of the W boson is measured at LEP by fully reconstructing the W
boson decays. The measurement techniques and systematic uncertainties are
presented. The current measurement of the mass of the W boson at LEP yields
80.412 +/- 0.042 GeV.


title: Lepton and quark asymmetries

abstract:
  Lepton and quark asymmetries at Z boson peak are a powerful means to test the
couplings of the Z boson to fermions. The measurements performed at LEP and SLC
colliders are reviewed, and their impact on the determination of the
electroweak mixing angle is presented.


title:
A New Analysis of the R Measurements: Resonance Parameters of the Higher
  Vector States of Charmonium

abstract:
  The existing experimental data on total cross sections for hadron production
in e+e- annihilation in the resonance region sqrt(s) = 3.8 - 4.8 GeV, usually
presented in terms of the parameter R, are critically examined. It is shown
that the Crystal Ball and BES measurements are in excellent agreement, and
their analysis leads to consistent resonance parameters f or the three vector
resonances above the DD-bar threshold. The results for the widths are found to
be considerably different from the presently adopted values, and have much
smaller err ors.


title: The Majorana Neutrinoless Double-Beta Decay Experiment

abstract:
  The proposed Majorana double-beta decay experiment is based on an array of
segmented intrinsic Ge detectors with a total mass of 500 kg of Ge isotopically
enriched to 86% in 76Ge. A discussion is given of background reduction by:
material selection, detector segmentation, pulse shape analysis, and
electro-formation of copper parts and granularity. Predictions of the
experimental sensitivity are given. For an experimental running time of 10
years over the construction and operation of Majorana, a half-life sensitivity
of ~4x10^27 y (neutrinoless) is predicted. This corresponds to an effective
Majorana mass of the electron neutrino of ~0.03-0.04 eV, according to recent
QRPA and RQRPA matrix element calculations.


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. The experiment and the CESR accelerator were
modified to efficiently 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:
Measurement of the Branching Ratio and Form Factors for the Decay
  \boldmath $K_L\to\pi^{\pm}\pi^0e^{\mp}\nu_e(\bar\nu_e)

abstract:
  The $K_L\to\pi^{\pm}\pi^0e^{\mp}\nu_e(\bar\nu_e)$ decay was investigated with
the NA48 detector at CERN SPS using a beam of long-lived neutral kaons. The
branching ratio $Br(K_L\to\pi^{\pm}\pi^0e^{\mp}\nu_e(\bar\nu_e))=(5.21\pm
0.07_{stat}\pm 0.09_{syst})\times 10^{-5}$ was fixed from a sample of 5464
events with 62 background events. The form factors $\bar{f}_s$, $\bar{f}_p$,
$\lambda_g$ and $\bar{h}$ were found to be in agreement with previous
measurements but with higher accuracy. The coupling parameter of the chiral
Lagrangian $L_3=(-4.1\pm 0.2)\times 10^{-3}$ was evaluated from the data.


title:
First Observation and Dalitz Analysis of the D^0 --> K_S^0 eta pi^0
  Decay

abstract:
  Using 9.0/fb of integrated luminosity in e+e- collisions near Upsilon(4S)
mass collected with the CLEO II.V detector we report the first observation of
the decay D0 -> K0S ETA PI0 We measure the ratio of branching fractions, BR(D0
-> K0S ETA PI0) / BR(D0 -> K0S PI0) = 0.46 +- 0.07 +- 0.06. We perform a Dalitz
analysis of 155 selected D0 -> K0S ETA PI0 candidates and find leading
contributions from a_0(980) K0S and K*(892) ETA intermediate states.


title: B0-B0bar mixing

abstract:
  The subject of particle-antiparticle mixing in the neutral B meson systems is
reviewed. The formalism of B0-B0bar mixing is recalled and basic Standard Model
predictions are given, before experimental issues are discussed and the latest
combinations of experimental results on mixing parameters are presented,
including those on mixing-induced CP violation, mass differences, and
decay-width differences. Finally, time-integrated mixing results are used to
improve our knowledge on the fractions of the various b-hadron species produced
at high-energy colliders.


title:
Results of the searches for narrow baryonic states with strangeness in
  DIS at HERA

abstract:
  Searches for narrow baryonic states in the K0s-p, K+p, Xi-pi and bar{X}+pi
decay channels are reported. The data were collected with the ZEUS detector at
HERA using an integrated luminosity of 121 pb-1. The searches were performed in
the central rapidity region of inclusive deep inelastic scattering at an $ep$
centre-of-mass energy of 300--318 GeV for exchanged photon virtuality, Q2,
above 1 GeV2. The results support the existence of a narrow baryonic state with
strangeness in K0s-p and K0s-\bar{p} decay channels, consistent with the
pentaquark prediction. No pentaquark signals were found in the K+p, Xi-pi and
bar{X}+pi channels.


title: Properties of the X(3872)

abstract:
  We report recent results on the properties of the X(3872) produced via the B+
-> K+ X(3872) decay process in the Belle detector. We present constraints on
possible charmonium-state assignments for this particles.


title:
The precision reach of ATLAS for electroweak physics in the low
  luminosity era

abstract:
  During the first three years of low luminosity operation, the LHC will
facilitate a number of precision tests of the Electroweak sector of the
Standard Model. The prospects for measuring the W boson and top quark masses
and for probing the charged triple gauge boson couplings at ATLAS are presented
here. In each case the most likely analysis methods are described and the
statistical and systematic uncertainties which can be expected are reported.


title: Heavy meson production at a low-energy photon collider

abstract:
  A low-energy $\gamma\gamma$ collider has been discussed in the context of a
testbed for a $\gamma\gamma$ interaction region at the Next Linear Collider
(NLC). We consider the production of heavy mesons at such a testbed using
Compton-backscattered photons and demonstrate that their production rivals or
exceeds those by BELLE, BABAR or LEP where they are produced indirectly via
virtual $\gamma\gamma$ luminosities.


title: Transverse Spin Physics at HERMES

abstract:
  Single-spin asymmetries in semi-inclusive pion production are measured by the
HERMES experiment for the first time, with a transversely polarised hydrogen
target. Two different sine-dependencies are extracted which can be related to
the quark distributions transversity h_1(x) and the Sivers function
f_1T^perp(x).


title: Standard Model Fits

abstract:
  The status of the electroweak precision measurements as of winter 2004 and
the global test of the Standard Model are discussed. Important input data are
the precision variables measured on the Z resonance at LEP and SLC and the
measurements of the W mass at LEP~2 and Tevatron. A new combination of Tevatron
experiments CDF and D0 on the top mass allows to set constraints on the
radiative corrections and therefore to put improved limits on the mass of the
Higgs boson. Additionally the impact of the NuTeV result on the weak mixing
angle and the status of the calculation of the hadronic vacuum polarization
$\Delta \alpha_{\rm had}$ are discussed.


title:
Phase Motion in the Scalar Low-Mass pi+pi- Amplitude in D+ -> pi-pi+pi+
  Decay

abstract:
  Applying the Amplitude Difference method to Fermilab experiment E791 D+ ->
pi-pi+pi+ data, we measure the low mass pi+pi- phase motion. Our results
suggest a significant phase variation, compatible with the existence of an
isoscalar sigma(500) meson, as previously reported using an isobar model fit to
the full Dalitz-plot density.


title: Top Physics: CDF Results

abstract:
  The top quark plays an important role in the grand scheme of particle
physics, and is also interesting on its own merits. We present recent results
from CDF on top-quark physics based on 100-200/pb of p-pbar collision data. We
have measured the t-tbar cross section in different decay modes using several
different techniques, and are beginning our studies of top-quark properties.
New analyses for this conference include a measurement of the t-tbar cross
section in the lepton-plus-jets channel using a neural net to distinguish
signal and background events, and measurements of top-quark branching
fractions.


title: Recent BES results on charmonium decays

abstract:
  Recent results on charmonia decays at BES/BEPC are reported, including the
observation of psi'-->K_S K_L, psi'--> Vector + Tensor for the measurement of
the relative phase between the strong and electromagnetic decays of psi' and a
test of the pQCD ``12% rule'' between psi' and J/psi decays; the study of
psi'--> gamma gamma J/psi for the determination of psi'--> pi^0 J/psi, eta
J/psi, gamma chi_c1 and gamma chi_c2 decay branching fractions; the test of the
color-octet mechanism via chi_cJ--> p \bar{p} and chi_cJ--> \Lambda
\bar{\Lambda}; and a search for the CP violating process psi' and J/psi--> K_S
K_S.


title:
Measurements of |Vub| with Simultaneous Requirements on M_X and q^2 by
  Belle

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 using a novel X_u-reconstruction method with
simultaneous requirements on the hadronic recoil mass (M_X) and the invariant
mass squared of lepton-neutrino system (q^2). Based on 86.9 fb^{-1} of data
taken with the Belle detector, we obtain Delta{B}(B->X_u l nu ; M_X<1.7GeV,
q^2>8.0GeV^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: H1 and ZEUS Results on Beauty Production

abstract:
  The H1 and ZEUS experiments are measuring beauty production in ep collisions
at HERA. The b quark mass provides a hard scale which allows a dedicated test
of perturbative QCD. The latest results in photoproduction and deep inelastic
scattering are presented and compared to the NLO QCD predictions as well as to
LO + parton shower Monte Carlo simulations.


title: B Physics at the Tevatron Run II

abstract:
  We present the B physics results from the CDF and D{\O} experiments at the
Tevatron Run II at Fermilab and their future prospect. This includes various B
mass and lifetime measurements, B mixing, the confirmation of the discovery of
the X particle, rare decays, CP violation and spectroscopy.


title:
A Measurement of the Total Width, the Electronic Width, and the Mass of
  the Upsilon(10580) Resonance

abstract:
  We present a measurement of the parameters of the $\Upsilon(10580)$ resonance
based on a dataset collected with the BABAR detector at the SLAC PEP-II
asymmetric $B$ factory. We measure the total width $\Gamma_{\rm tot}$ to be
$(20.7\pm1.6\pm2.5) {\rm MeV}$, the electronic partial width $\Gamma_{ee} =
(0.321\pm0.017\pm0.029) {\rm keV}$ and the mass $M = (10579.3\pm0.4\pm1.2) {\rm
MeV/c^2}$.


title: Diboson Production Cross-sections at sqrt(s)=1.96TeV

abstract:
  Recent results of Wgamma, Zgamma and WW cross-section measurements in the
electron and muon channels are reported from p-pbar collisions at
sqrt(s)=1.96TeV recorded by the CDF and D0 collaborations. Total cross-sections
and kinematic distributions are found to be consistent with Standard Model
expectations.


title: Charm and QCD at Cleo-III and Cleo-c

abstract:
  We present recent results on charm physics from CLEO-III, emphasizing QCD and
hadronic structure. These include the decay $\Xi_c^0\to pK^-K^-\pi^+$ and the
form factor for $D^0\to\pi^-e^+\nu_e$. We also discuss upcoming measurements
with CLEO-c, including dramatic improvements in the $D^0\to\pi^-e^+\nu_e$ form
factor, and glueball spectroscopy in $J/\psi\to\gamma X$.


title: Electron Beam for LHC

abstract:
  A method of delivering a monochromatic electron beam to the LHC interaction
points is proposed. In this method, heavy ions are used as carriers of the
projectile electrons. Acceleration, storage and collision-stability aspects of
such a hybrid beam is discussed and a new beam-cooling method is presented.
This discussion is followed by a proposal of the Parasitic Ion-Electron
collider at LHC (PIE@LHC). The PIE@LHC provides an opportunity, for the present
LHC detectors, to enlarge the scope of their research program by including the
program of electron-proton and electron-nucleuscollisions with minor machine
and detector investments.


title: Lepton Flavour Violating $\tau$ decays

abstract:
  Searches for lepton flavour violating $\tau$ $\ra$ lll and $\tau$ $\ra$
l$\gamma$ decays at the B-factories are presented. Upper limits on the
branching ratios are obtained $\sim$ $O(10^{-7})$ at 90% confidence level.


title:
Observation of Two New N* Peaks in J/psi -> $p pi^- \bar n$ and $\bar
  p\pi^+n$ Decays

abstract:
  The $\pi N$ system in decays of $J/\psi\to\bar NN\pi$ is limited to be
isospin 1/2 by isospin conservation. This provides a big advantage in studying
$N^*\to \pi N$ compared with $\pi N$ and $\gamma N$ experiments which mix
isospin 1/2 and 3/2 for the $\pi N$ system. Using 58 million $J/\psi$ decays
collected with the Beijing Electron Positron Collider, more than 100 thousand
$J/\psi \to p \pi^- \bar n + c.c.$ events are obtained. Besides two well known
$N^*$ peaks at 1500 MeV and 1670 MeV, there are two new, clear $N^*$ peaks in
the $p\pi$ invariant mass spectrum around 1360 MeV and 2030 MeV. They are the
first direct observation of the $N^*(1440)$ peak and a long-sought "missing"
$N^*$ peak above 2 GeV in the $\pi N$ invariant mass spectrum. A simple
Breit-Wigner fit gives the mass and width for the $N^*(1440)$ peak as $1358\pm
6 \pm 16$ MeV and $179\pm 26\pm 50$ MeV, and for the new $N^*$ peak above 2 GeV
as $2068\pm 3^{+15}_{-40}$ MeV and $165\pm 14\pm 40$ MeV, respectively.


title: Background issues at SUPERDAFNE

abstract:
  DAFNE induced backgrounds are dominated by Touschek scattering [1]. A
luminosity upgrade of the machine at the same beam energy would be obtained
essentially by increasing the bunch density, that in principle would increase
this particle loss process. Some preliminary studies and general considerations
of the Touschek effect for the DAFNE high luminosity upgrade are presented
here.


title: Letter of Intent for Double-CHOOZ: a Search for the Mixing Angle Theta13

abstract:
  Tremendous progress has been achieved in neutrino oscillation physics during
the last few years. However, the smallness of the $\t13$ neutrino mixing angle
still remains enigmatic. The current best constraint comes from the CHOOZ
reactor neutrino experiment $\s2t13 < 0.2$ (at 90% C.L., for $\adm2=2.0 10^{-3}
\text{eV}^2$). We propose a new experiment on the same site, Double-CHOOZ, to
explore the range of $\s2t13$ from 0.2 to 0.03, within three years of data
taking. The improvement of the CHOOZ result requires an increase in the
statistics, a reduction of the systematic error below one percent, and a
careful control of the cosmic ray induced background. Therefore, Double-CHOOZ
will use two identical detectors, one at $\sim$150 m and another at 1.05 km
distance from the nuclear cores. The plan is to start data taking with two
detectors in 2008, and to reach a sensitivity of 0.05 in 2009, and 0.03 in
2011.


title: CLEO Results on Upsilons

abstract:
  I present highlights of recent CLEO studies on the Upsilon(1S), Upsilon(2S),
and Upsilon(3S). The preliminary results presented here include the first
observation of a hadronic cascade in the Upsilon system not involving pions,
Upsilon(3S) to gamma chi(b1,2)(2P) followed by chi(b1,2)(2P) to omega
Upsilon(1S). I also present preliminary results on a search for inclusive psi
production in Upsilon(1S) decays. I end with a search for nine different two
body hadronic decays of the Upsilon(nS), n=1,2,3, resulting in the discovery of
two such decays, and vastly improved upper limits on the branching ratios of
the rest.


title:
HyperCP: A high-rate spectrometer for the study of charged hyperon and
  kaon decays

abstract:
  The HyperCP experiment (Fermilab E871) was designed to search for rare
phenomena in the decays of charged strange particles, in particular CP
violation in $\Xi$ and $\Lambda$ hyperon decays with a sensitivity of
$10^{-4}$. Intense charged secondary beams were produced by 800 GeV/c protons
and momentum-selected by a magnetic channel. Decay products were detected in a
large-acceptance, high-rate magnetic spectrometer using multiwire proportional
chambers, trigger hodoscopes, a hadronic calorimeter, and a muon-detection
system. Nearly identical acceptances and efficiencies for hyperons and
antihyperons decaying within an evacuated volume were achieved by reversing the
polarities of the channel and spectrometer magnets. A high-rate
data-acquisition system enabled 231 billion events to be recorded in twelve
months of data-taking.


title: AMANDA: Status and latest Results

abstract:
  We briefly review some of the recent AMANDA results emphasizing the all
flavor capabilities of the high energy neutrino telescope, important in the
context of equal neutrino mixing from distant sources at Earth. Together with a
report on a preliminary UHE neutrino flux limit, the course of our progress in
the quest for point sources is described. Finally, a 1 year preliminary limit
of AMANDA-II to neutralino cold dark matter (CDM) candidates, annihilating in
the center of the Sun, for various MSSM parameter choices is presented and
discussed.


title: K+ -> pi0 e+ nu branching ratio from E865

abstract:
  E865 at the Brookhaven National Laboratory AGS collected about 70,000 K+(e3)
events to measure the K+(e3) branching ratio relative to the observed K+ -> pi+
pi0, K+ -> pi0 mu+ nu, and K+ -> pi+ pi0 decays. The pi0 in all the decays was
detected using the e+e- pair from pi0 -> e+e-gamma decay and no photons were
required. Using the Particle Data Group branching ratios for the normalization
decays we obtain
BR(K+(e3(gamma))=(5.13+/-0.02(stat)+/-0.09(sys)+/-0.04(norm))%, where
$K+(e3(gamma)) includes the effect of virtual and real photons. This result is
2.3 sigma higher than the current Particle Data Group value. The implications
of this result for the $V_{us}$ element of the CKM matrix, and the matrix's
unitarity are discussed.


title: New Strange Asymmetry Results from NuTeV

abstract:
  Results from the next to leading order (NLO) dimuon analysis from the NuTeV
experiment at FNAL are presented. Charged current interactions in
neutrino-nucleon scattering with two oppositely charged muons in the final
state allow direct study of charm production and measurement of the strange
sea. NuTeV's sign selected beam gives it the ability to extract the strange and
antistrange seas independently, for which an asymmetry has been predicted in
some theoretical models, and which is currently of intense interest in
interpreting neutrino electroweak results. The dimuon results presented here
represent the first analysis of dimuon events performed utilizing DISCO, a
fully NLO cross section code differential in all variables required to model
detector acceptance.


title: Results on B -> VV and PV Decays From Belle

abstract:
  I report results on $B\to VV$ and $B\to PV$ decays. The results include the
measurements of the decay amplitudes and the branching fractions in the decays
$B\to \phi K^*$ and $B^+\to \rho^+\rho^0$, the measurements of the branching
fraction and CP asymmetry in $B^+\to \rho^+\pi^0$, and the first evidence of
the decay $B^0\to\rho^0\pi^0$.


title: Strangeness Production at the HERA-B Experiment

abstract:
  HERA-B is a fixed target experiment at the 920 GeV HERA proton beam at DESY
which uses a variety of nuclear targets. During the last data taking period
from Nov. 2002 to Feb. 2003, 200 million minimum bias events were recorded.
  A large sample of V^0(K_zero, Lambda_zero, Lambda_zero_bar), approximately
20000 cascade hyperons Xi^(-/+) and 1200 Omega^(-/+) over low background were
reconstructed using these data. About 1 million K^*(892) --> K pi and 60,000
phi(1020) --> K^+K^- decays in central production $(-0.15 < x_F < 0.1, 0.5 <
p_t^2 < 12.1 (GeV/c)^2 were analyzed.
  Preliminary results for differential p_t^2 spectra, atomic numeber dependence
and anti-particle to particle ratios are presented.


title: Highlights of the KLOE Experiment at Daphne

abstract:
  The KLOE experiment at DAPHNE has collected ~ 450 pb-1 of e+e- collisions at
center of mass energy W~1.02 GeV. Preliminary results are presented for the
most recent measurements: limit on the BR(Ks->3pi0), BR of the Ke3 decay of the
Ks and determination of the hadronic cross section.


title: Belle CP violation in b to sqq and uud processes

abstract:
  We report the analysis of time-dependent CP violation in neutral B meson
system using a data sample corresponding to 140fb-1 collected by Belle detector
and KEKB e+e- collider. One B meson decaying into CP eigenstate is fully
reconstructed and the accompanying B meson flavor is identified by its decay
products. The CP violation parameters are determined from the distribution of
proper time intervals between the two B decays. Here we cover measurements of
CP violation in b to uud and b to sq \bar{q$ processes.


title:
Search for the exotic $\Xi^{--}(1860)$ Resonance in 340GeV/c
  $\Sigma^-$-Nucleus Interactions

abstract:
  We report on a high statistics search for the $\Xi^{--}(1860)$ resonance in
$\Sigma^-$-nucleus collisions at 340GeV/c. No evidence for this resonance is
found in our data sample which contains 676000 $\Xi^-$ candidates above
background. For the decay channel $\Xi^{--}(1860) \to \Xi^-\pi^-$ and the
kinematic range 0.15$<x_F<$0.9 we find a 3$\sigma$ upper limit for the
production cross section of 3.1 and 3.5 $\mu$b per nucleon for reactions with
carbon and copper, respectively.


title: Prospects for Higgs Searches via VBF at the LHC with Atlas

abstract:
  We report on the potential for the discovery of a Standard Model Higgs boson
with the vector boson fusion mechanism in the mass range $115<M_H<500
\gev/$c$^2$ with the ATLAS experiment at the LHC. Feasibility studies at hadron
level followed by a fast detector simulation have been performed for $H\to
W^{(*)}W^{(*)}\to l^+l^-\sla{p_T}$, $H\to\gamma\gamma$ and $H\to ZZ\to
l^+l^-q\bar{q}$. The preliminary results obtained here show a large discovery
potential in the range $115<M_H<300 \gev/$c$^2$. Results obtained with
multivariate techniques are reported for a number of channels.


title: Exotic Meson Decay to $\omega\pi^{0}\pi^{-}$

abstract:
  A partial-wave analysis of the mesons from the reaction $\pi^{-}%
p\to\pi^{+}\pi^{-}\pi^{-}\pi^{0}\pi^{0}p$ has been performed. The data show
$b_{1}\pi$ decay of the spin-exotic states $\pi_{1}(1600)$ and \
$\pi_{1}(2000)$. Three isovector $2^{-+}$ states were seen in the
$\omega\rho^{-}$ decay channel. In addition to the well known $\pi_{2}(1670)$,
signals were also observed for $\pi_{2}(1880)$ and $\pi_{2}(1970)$.


title: B Physics Results From CLEO

abstract:
  We present results on lepton energy and recoil hadronic mass moments in
semileptonic B decay using a total of 9.4 fb^-1 of data taken with the CLEO
detector at the \Upsilon(4S). These results are discussed in the context of
Heavy Quark Effective Theory and compared to theory predictions as a function
of the minimum lepton energy requirement. We also measure the B semileptonic
branching fraction, B(B\to Xe^+\nu_e), as (10.91\pm0.09\pm0.24)%.


title: Top Quark Mass Measurements

abstract:
  Preliminary results on the measurement of the top quark mass (mt) at the
Tevatron Collider are presented. In the dilepton decay channel, the CDF
Collaboration measures mt=175.0(+17.4)(-16.9)(stat.)+/-8.4(syst.) GeV/c2, using
a sample of ~126 pb-1 of proton-antiproton collision data at sqrt(s)=1.96 TeV
(Run II). In the lepton plus jets channel, the CDF Collaboration measures
177.5(+12.7)(-9.4)(stat.)+/-7.1(syst.) GeV/c2, using a sample of ~102 pb-1 at
sqrt(s)=1.96 TeV. The D0 Collaboration has newly applied a likelihood technique
to improve the analysis of ~125 pb-1 of proton-antiproton collisions at
sqrt(s)=1.8 TeV (Run I), with the result: mt=180.1+/-3.6(stat.)+/-3.9(syst.)
GeV/c2. The latter is combined with all the measurements based on the data
collected in Run I to yield the most recent and comprehensive experimental
determination of the top quark mass: mt=178.0+/-2.7(stat.)+/-3.3(syst.) GeV/c2


title: Charm physics at Tevatron

abstract:
  The first period of the Tevatron Run II has been dominated by low-Pt physics.
Both detectors, and their trigger/DAQ systems have been largely modified to
exploit as much as possible the large wealth of charm and beauty hadrons
produced by the machine, with improvements in the tracking system, magnetic
field, specific triggers based on on-line track reconstruction. Thanks to these
improvements, Tevatron experiments are competitive with dedicated machines, not
only for heavier beauty states but also for charm, both in leptonic and
hadronic decays.


title: Measurement of phi_3 in B->D(*)K Decays at Belle

abstract:
  We present a measurement of the unitarity triangle angle phi_3 using a Dalitz
plot analysis of the three-body decay of the D0 meson from the B+- -> D(*)K+-
process. The method employs the interference between D0 and D0bar to extract
both the weak and strong phases. We apply this method to the 140 fb-1 of data
collected by Belle experiment. The analysis uses B+- -> DK+- and B+- -> D*K+-
with D*->Dpi0 modes, where the neutral D meson decays into K_s pi+ pi-. From a
combined maximum likelihood fit of B+- -> DK+- and B+- -> D*K+- modes, we
obtain phi_3=81^{\circ}+-19^{\circ}+-13(syst)+-11^{\circ}(model). The 95%
confidence interval is 35^{\circ}<phi_3<127^{\circ}.


title:
Resonances in the System of Pi+Pi- -- Mesons from the Reaction
  np->npPi+Pi- at Pn=5.20GeV/c: Search, Results of Direct Observations,
  Interpretation

abstract:
  Ten resonances were found in the mass spectrum of pi+pi- -system from the
reaction np->nppi+pi- in np-interactions at Pn=5.20 GeV/c in the 1-m HBC of LHE
JINR by using the criterion cos(teta)[c.m.c.] p>0. Such effects were not found
in pi-pi0 - combinations from the reaction np->pppi-pi0. Therefore, it is
necessary to attribute the value of isotopic spin I = 0 to the resonances found
in the mass spectrum of the pi+pi- -system. The spin was estimated for the most
statistically provided resonances. We determine with a high degree of
confidence that J = 0 for the resonances at MR = 757 MeV/c^2 and MR = 418
MeV/c^2. Therefore, it can be affirmed that at least 3 states with quantum
numbers of sigma0-meson 0+(0++) have been found at masses of 418, 511 and 757
MeV/c^2. The fact low-mass sigma0-mesons are glueballs is one of the possible
interpretations. The comparison with the data of other papers has also been
made. The investigation has been performed at the Veksler and Baldin Laboratory
of High Energies,JINR.


title:
Observation of a threshold enhancement in the p \bar{Lambda} invariant
  mass spectrum

abstract:
  An enhancement near the m_p + M_{\Lambda} mass threshold is observed in the
combined p \bar{\Lambda} and \bar{p}\Lambda invariant mass spectrum from J/\psi
--> p K^- \bar{Lambda} + c.c. decays. It can be fit with an S-wave Breit-Wigner
resonance with a mass m = 2075 +- 12 (stat) +- 5 (syst) MeV and a width of
\Gamma = 90 +- 35 (stat) +- 9 (syst) MeV; it can also be fit with a P-wave
Breit-Wigner resonance. Evidence for a similar enhancement is also observed in
\psi' --> p K^- \bar{\Lambda} + c.c. decays. The analysis is based on samples
of 5.8 X 10^7 J/\psi and 1.4 X 10^7 \psi' decays accumulated in the BES II
detector at the Beijing Electron-Positron Collider.


title:
Charm production in ep interaction at HERA and evidence for a narrow
  anti-charmed baryon state at H1

abstract:
  Recent results on open charm production at HERA are presented. Charm quarks
are identified via the reconstruction of D-mesons. The charm contribution to
the proton structure function is shown. Evidence for an exotic anti-charmed
baryon state observed by H1 is presented. The data show a narrow resonance in
the D*p invariant mass combination at 3099+-3(stat)+-5(syst) MeV. The resonance
is interpreted as an anti-charmed baryon with minimal constituent quark content
uuddcbar together with its charge conjugate. Such a signal is not observed in a
similar preliminary ZEUS analysis.


title:
Recent results from NA57 on strangeness production in p-A and Pb-Pb
  collisions at 40 and 158 A GeV/c

abstract:
  The production of hyperons in Pb-Pb and p-Be interaction at 40 $A$ GeV/$c$\
beam momentum has been measured by the NA57 experiment. Strange particle
enhancements at 40 $A$ GeV/$c$ are presented and compared to those measured at
158 $A$ GeV/$c$. Their transverse mass spectra have been studied in the
framework of the blast-wave model. The multiplicity of charged particles as a
function of the energy is also discussed.


title:
On the Importance of Isospin Effects for the Interpretation of Nuclear
  Collisions

abstract:
  It is demonstrated that many aspects of nuclear collisions, as for instance
the evolution of $\pi^{+}/\pi^{-}$ and $K/\pi$ ratios with $x_F$ and
$\sqrt{s}$, are influenced by isospin effects already present in elementary
nucleon--nucleon collisions.


title: Studies of event shape observables with the OPAL detector at LEP

abstract:
  In quark-antiquark pair production at LEP, many features of the hadronic
final state can be predicted by QCD. Using data collected by the OPAL
experiment, we present the statistical distributions of fourteen "event shape
observables," which describe the inclusive kinematic properties of events
producing three or more jets. For six of these observables, we compare the
measured distributions with those calculated in perturbative QCD. By optimising
the agreement between theory and data, we measure the strong coupling
$\alpha_s$ at a range of energy scales. We also test the predictions of three
Monte Carlo event generators, for all fourteen observables. Over the years
since the LEP experiments began operating, many similar analyses have been
published, and have contributed to the world average measurements of
$\alpha_s$. However, several improvements have now been made, both in the
theoretical calculations and in the experimental analysis techniques. We
therefore present a complete reanalysis of the OPAL data, over the full range
of LEP collision energies. Particular attention is given to the estimation of
uncertainties, including the large contribution due to uncalculated
higher-order terms of the theory predictions. In collaboration with the LEP QCD
Working Group, we have combined the $\alpha_s$ measurements obtained from event
shape observables by all four experiments. Detailed investigations were
undertaken to ensure consistent implementation of the theoretical predictions
and uncertainty estimates, and to take account of correlations between
measurements.


title: QCD Jet Results from the Tevatron

abstract:
  Early Run II QCD jet results from D0 and CDF are presented. Inclusive and
dijet cross sections have been measured and underlying events have been studied
by two different means. While the results to date are consistent with the
standard model both experiments are working hard to spot any deviations that
may emerge.


title: Results on $\psi'$ production in nucleus-nucleus collisions at CERN-SPS

abstract:
  We report results on $\psi'$ production as a function of centrality as
measured by experiment NA50, at the CERN/SPS, in Pb-Pb collisions at an
incident energy of 158 GeV per nucleon.


title: Fermi-Dirac Correlations in Z^{0} \to ppX at LEP

abstract:
  The DELPHI and ALEPH experiments have released new results of the Fermi-Dirac
correlations for pp (\bar{p} \bar{p}) and Bose-Einstein correlations for K^0_s
K^0_s. Both experiments measure very small source radius for protons R \sim 0.1
fm. The source dimension for K^0_s K^0_s is in agreement with the previous
measurements for K^+ K^-, K^0_s K^0_s. These results, together with earlier LEP
measurements, establish the dependence of the correlation radius on the hadron
mass. This paper discusses some of the attempts to describe this phenomenon.


title: Open and Hidden Charm Production with the HERA-B Experiment

abstract:
  Measurements of the suppression of the yield per nucleon and differential
distributions of $J / \psi$ production for 920 GeV/c protons incident on heavy
nuclear targets have been made with broad coverage in $p_T$ and negative
coverage in $x_F$ of produced meson. Production ratios of $\psi(2S)$ to $J /
\psi$ and $\chi_c$ to $J / \psi$ have been measured with a high accuracy. The
$D^+$ and $D^0$ production cross sections as well as $D^+$ to $D^0$ ratio have
been obtained on one of the highest statistics available in proton nucleus
experiments.


title:
Search for the Flavor-Changing Neutral Current Decay $D^0 \to
  \mu^+\mu^-$ with the HERA-B Detector

abstract:
  We report on a search for the flavor-changing neutral current decay $D^0 \to
\mu^+\mu^-$ using $50 \times 10^6$ events recorded with a dimuon trigger in
interactions of 920 GeV protons with nuclei by the HERA-B experiment. We find
no evidence for such decays and set a 90% confidence level upper limit on the
branching fraction $Br(D^0 \to \mu^+\mu^-) <2.0 \times 10^{-6}$.


title: Electroweak Physics Results at CDF Run II

abstract:
  The Run II physics program of CDF is proceeding with approximately 200 pb-1
of analysis quality data collected at the center-of-mass energy of 1.96 TeV.
The Electroweak measurements are among the first and most important benchmarks
towards the best understanding of the detector and testing of the Standard
Model. We present precision measurements of the W and Z inclusive cross
sections and decay asymmetries, recent results in di-boson physics and their
sensitivity to new physics, and preliminary studies for the W mass measurement.


title: Production of double hypernuclei with high energy antiprotons at PANDA

abstract:
  The data available in literature, concerning the binding energy of double
hypernuclei and their production techniques are briefly reviewed. Then, a new
technique for producing double hypernuclei with antiprotons in flight and
measuring their binding energy, proposed for the PANDA experiment at GSI, is
investigated. Furthermore, preliminary results of the calculations for
evaluating the double hypernuclei production and detection rates at the
antiproton beam intensity foreseen at HESR are reported.


title: Testing Time Reversal Invariance with Cold Neutrons

abstract:
  The neutron is a well-suited system to search for a violation of time
reversal invariance beyond the Standard Model. Recent experiments and projects
searching for time reversal violation in the neutron decay and in the neutron
electric dipole moment will be presented.


title:
Inclusive Search for Anomalous Production of High-pT Like-Sign Lepton
  Pairs in Proton-Antiproton Collisions at sqrt{s}=1.8 TeV

abstract:
  We report on a search for anomalous production of events with at least two
charged, isolated, like-sign leptons with pT > 11 GeV/c using a 107 pb^-1
sample of 1.8 TeV ppbar collisions collected by the CDF detector. We define a
signal region containing low background from Standard Model processes. To avoid
bias, we fix the final cuts before examining the event yield in the signal
region using control regions to test the Monte Carlo predictions. We observe no
events in the signal region, consistent with an expectation of
0.63^(+0.84)_(-0.07) events. We present 95% confidence level limits on new
physics processes in both a signature-based context as well as within a
representative minimal supergravity (tanbeta = 3) model.


title: Proton source size measurements in the eA->e'ppX reaction

abstract:
  Two-proton correlations at small relative momentum q were studied in the
eA(3He, 4He, C, Fe)-> e'ppX reaction at E_0 = 4.46 GeV using the CLAS detector
at Jefferson Lab. The enhancement of the correlation function at small q was
found to be in accordance with theoretical expectation. Emission region sizes
were extracted and proved to be dependent on A and proton momentum. The size of
the two-proton emission region on the lightest possible nucleus, He, was
measured for the first time.


title:
Substructure dependence of jet cross sections at HERA and determination
  of alphas

abstract:
  Jet substructure and differential cross sections for jets produced in the
photoproduction and deep inelastic ep scattering regimes have been measured
with the ZEUS detector at HERA using an integrated luminosity of 82.2 pb-1. The
substructure of jets has been studied in terms of the jet shape and subjet
multiplicity for jets with transverse energies Et(jet) > 17 GeV. The data are
well described by the QCD calculations. The jet shape and subjet multiplicity
are used to tag gluon- and quark-initiated jets. Jet cross sections as
functions of Et(jet), jet pseudorapidity, the jet-jet scattering angle, dijet
invariant mass and the fraction of the photon energy carried by the dijet
system are presented for gluon- and quark-tagged jets. The data exhibit the
behaviour expected from the underlying parton dynamics. A value of alphas(Mz)
of alphas(Mz) = 0.1176 +-0.0009(stat.) -0.0026 +0.0009 (exp.) -0.0072 +0.0091
(th.) was extracted from the measurements of jet shapes in deep inelastic
scattering.


title: Semileptonic B Decays in Babar

abstract:
  BaBar measurements involving semileptonic decays of B mesons are reviewed.
Attention is focused on the extraction of |Vub| and |Vcb| elements of the
Cabibbo-Kobayashi-Maskawa quark mixing matrix. Recent results of inclusive and
exclusive approaches are presented.


title: W and Z (plus Jets) Cross Sections at 1.96 TeV

abstract:
  We present an update on the status of the W and Z cross sections in
proton-antiproton collisions at 1.96 TeV on behalf of the DZero and CDF
collaborations. Preliminary studies of the differential cross sections with
different jet multiplicities and as a function of jet transverse energy are
also presented.


title: Evidence of B0 --> rho0 pi0

abstract:
  We present the first evidence of the decay B0 --> rho0 pi0, using 140fb^-1 of
data collected at the Upsilon(4S) resonance with the Belle detector at the KEKB
asymmetric e+e- collider. We detect a signal with a significance of 3.5
standard deviations, and measure the branching fraction to be Br(B0 ->- rho0
pi0) = (5.1 +/- 1.6(stat) +/- 0.9(syst))*10^-6.


title: Measurement of beauty production in deep inelastic scattering at HERA

abstract:
  The beauty production cross section for deep inelastic scattering events with
at least one hard jet in the Breit frame together with a muon has been
measured, for photon virtualities Q^2 > 2 GeV^2, with the ZEUS detector at HERA
using integrated luminosity of 72 pb^-1. The total visible cross section is
sigma_b-bbar (ep -> e jet mu X) = 40.9 +- 5.7 (stat.) +6.0 -4.4 (syst.) pb. The
next-to-leading order QCD prediction lies about 2.5 standard deviations below
the data. The differential cross sections are in general consistent with the
NLO QCD predictions; however at low values of Q^2, Bjorken x, and muon
transverse momentum, and high values of jet transverse energy and muon
pseudorapidity, the prediction is about two standard deviations below the data.


title:
Search for bosonic stop decays in R-parity violating supersymmetry in
  e^+ p collisions at HERA

abstract:
  A search for scalar top quarks in R-parity violating supersymmetry is
performed in e^+ p collisions at HERA using the H1 detector. The data, taken at
sqrt{s}=319 GeV and 301 GeV, correspond to an integrated luminosity of 106
pb^-1. The resonant production of scalar top quarks \tilde{t} in positron quark
fusion via an R-parity violating Yukawa coupling lambda' is considered with the
subsequent bosonic stop decay \tilde{t} -> \tilde{b} W. The R-parity violating
decay of the sbottom quark tilde{b} -> d \bar{nu_e} and leptonic and hadronic W
decays are considered. No evidence for stop production is found in the search
for bosonic stop decays nor in a search for the direct R-parity violating decay
\tilde{t} -> eq. Mass dependent limits on lambda' are obtained in the framework
of the Minimal Supersymmetric Standard Model. Stop quarks with masses up to 275
GeV can be excluded at the 95% confidence level for a Yukawa coupling of
electromagnetic strength.


title: Search for B0 Decays to Invisible Final States and to nu nubar gamma

abstract:
  We establish upper limits on branching fractions for B0 decays to final
states where the decay products are purely invisible (i.e., no observable final
state particles) and for B0 decays to nu nubar gamma. Within the Standard
Model, these decays have branching fractions that are below current
experimental sensitivity, but various models of physics beyond the Standard
Model predict significant contributions from these channels. Using 88.5 million
B Bbar pairs collected at the Y(4S) resonance by the BaBar experiment at the
PEP-II e+e- storage ring at the Stanford Linear Accelerator Center, we
establish upper limits at the 90% confidence level of 22 x 10^-5 for the
branching fraction of B0 -> invisible and 4.7 x 10^-5 for the branching
fraction of B0 -> nu nubar gamma.


title:
Computation of Confidence Levels for Exclusion or Discovery of a Signal
  with the Method of Fractional Event Counting

abstract:
  A method is described, which computes from an observed sample of events upper
limits for production rates of particles, or, in case of appearance of a
signal, the probability for an upwards fluctuation of the background. For any
candidate, a weight is defined, and the computation is based on the sum of
observed weights. Candidates may be distributed over many decay channels with
different detection efficiencies, physical observables and different or poorly
known background. Systematic errors with any possible correlations are taken
into account and they are incorporated into the weight definition. It is
investigated, under which conditions a Bayesian treatment of systematic errors
is correct. Some numerical examples are given and compared with the results of
other methods. Simple approximate formulas for observed and expected confidence
levels are given for the limiting case of high count rates. A special procedure
is introduced, which analyses input data in terms of polynomial distributions.
It extracts confidence levels for a signal or background hypothesis on the
basis of spectral shapes only, normalizing the total rate to the number of
observed events.


title: The gluon polarization $\Delta G/G$ at COMPASS

abstract:
  The COMPASS experiment will determine the gluon polarization in the nucleon
$\Delta G/G$ from the double helicity asymmetry measured in the scattering of a
160 GeV muon beam on a longitudinally polarized deuteron target, by selecting
the photon-gluon fusion reaction. This reaction can be tagged either by the
production of open charm, or by the production of high $p_T$ hadron pairs. The
first asymmetry obtained with the latter method is presented.


title: Online monitoring system and data management for KamLAND

abstract:
  In January 22, 2002, KamLAND started the data-taking. The KamLAND detector is
a complicated system which consists of liquid scintillator, buffer oil,
spherical balloon and so on. In order to maintain the detector safety, we
constructed monitoring system which collect detector status information such as
balloon weight, liquid scintillator oil level and so on. In addition, we
constructed continuous Rn monitoring system for the $^7$Be solar neutrino
detection. The KamLAND monitoring system consists of various network, LON,
1-Wire, and TCP/IP, and these are indispensable for continuous experimental
data acquisition.


title: Search for Higgs, Leptoquarks, and Exotics at Tevatron

abstract:
  This paper reviews some of the most recent results from the CDF and DZERO
experiments on the searches for Standard Model and Non-Standard Model Higgs
bosons, and other new phenomena at the Tevatron. Both experiments examine data
from proton anti-proton collision at sqrt{s} = 1.96 TeV, of integrated
luminosity ~200$ pb**-1 (per experiment), to search for Higgs predicted in the
Standard Model and beyond Standard Model, supersymmetric particles in the Gauge
Mediated Symmetry Breaking scenario, leptoquarks, and excited electrons. No
signal was observed, and limits on the signatures and models are derived.


title:
A study of the nuclear medium influence on neutral strange particle
  production in deep inelastic neutrino scattering

abstract:
  The influence of nuclear effects on the production of neutral strange
particles ($V^{\circ}$) is investigated using the data obtained with SKAT
propane-freon bubble chamber irradiated in the neutrino beam (with $E_{\nu}$ =
3-30 GeV) at Serpukhov accelerator. The measured mean multiplicity of
$V^{\circ}$ particles in nuclear interactions, ${<n_{V^{\circ}}>}_A$ =
0.096$\pm$0.011, is found to exceed significantly that in 'quasinucleon'
interactions, ${<n_{V^{\circ}}>}_N$ = 0.059$\pm$0.012. The ratio of
${\rho}_{V^{\circ}}$ =${<n_{V^{\circ}}>}_A/{<n_{V^{\circ}}>}_N$ =1.61$\pm$0.23
is larger than that for $\pi^{-}$ mesons, ${\rho}_{\pi^-}$ = 1.10$\pm$0.03. It
is shown that a dominant part of the multiplicity gain of $V^{\circ}$ particles
can be explained by intranuclear interactions of produced pions.


title: Top Quark Physics Results from D0

abstract:
  We describe recent measurements of the ttbar production cross section and the
mass of the top quark from the D0 Collaboration.


title: Exclusive pi^+ production at HERMES

abstract:
  Hard exclusive production in deep inelastic lepton scattering provides access
to the unknown Generalized Parton Distributions (GPDs) of the nucleon. At
HERMES, different observables for hard exclusive pi^+ production have been
measured with a 27.6 GeV positron beam on an internal hydrogen gas target.
First preliminary results for the unpolarized ep->enpi^+ total cross section
for 1.5<Q^2<10.5 GeV^2 and for 0.02<x<0.8 are presented and compared to GPD
calculations. The final result for the single-spin asymmetry using a
longitudinal polarized target is also reported.


title: Recent Tevatron Searches

abstract:
  Here I present some recent results of the D0 and CDF collaborations on Large
Extra Dimensions, Z', and SUSY searches. The experiments examine events
produced by proton-antiproton collisions, with an integrated luminosity of
approximately 200 events/pb per experiment. Unfortunately, despite careful
searches, no new signals of physics beyond the standard model were observed.
Therefore, I present the limits derived from the observations


title: New QCD results from LEP

abstract:
  I review recent QCD results from LEP. The emphasis is on results that
represent new studies and on puzzling disagreements of theory and experiment.
Further results are nevertheless mentioned by reference. The new studies
discussed in more detail are the most precise measurement of unbiased gluon
jets to date, strong evidence of color coherence in 3-jet events, and an,
albeit unsuccessful, search for penta-quarks. As yet unexplained disagreements
are observed in photon-photon collisions for high momentum charged particle and
single jet production, and for the total cross section of b-quark production.


title: B Decays to Charm States at BaBar

abstract:
  In this paper recent results in the field of B meson decays to states
containing charm are presented. These analyses are based on the 1999-2003
dataset collected by the BaBar experiment at the PEP-II e+e- storage ring at
the Stanford Linear Accelerator Center. Special attention is devoted to B
decays to final states containing D mesons. In addition a few new results from
B decays to charmonium states are reported.


title:
Measurement of Time-dependent CP-violating Asymmetries in B0 -> K*0
  gamma (K*0 -> K0_S pi0) Decays

abstract:
  We present a measurement of the time-dependent CP-violating asymmetries in
$B^0 \to K^{*0}\gamma (K^{*0}\to K_S^0 \pi^0)$ decays based on 124 million
$\Upsilon(4S)\to B^0\bar{B}^0$ decays collected with the BaBar detector at the
PEP-II asymmetric-energy $B$ Factory at the Stanford Linear Accelerator Center.
In a sample containing $105\pm 14$ signal decays, we measure $S_{K^{*0}} = 0.25
\pm 0.63 \pm 0.14$ and $S_{K^{*0}} = -0.57 \pm 0.32 \pm 0.09$, where the first
error is statistical and the second systematic.


title: A Determination of the CKM Parameter |Vus|

abstract:
  We present a determination of the CKM parameter |Vus| based on new
measurements of the six largest KL branching fractions and semileptonic form
factors by the KTeV (E832) experiment at Fermilab. We find |Vus| = 0.2252 +-
0.0008(KTeV) +- 0.0021(ext), where the errors are from KTeV measurements and
from external sources. We also use the measured branching fractions to
determine the CP violation parameter |eta+-| = [2.228 +- 0.005(KTeV) +-
0.009(ext)]E-3.


title:
Measurements of KL Branching Fractions and the CP Violation Parameter
  |eta+-|

abstract:
  We present new measurements of the six largest branching fractions of the KL
using data collected in 1997 by the KTeV experiment (E832) at Fermilab. The
results are B(KL -> pi e nu) = 0.4067 +- 0.0011 B(KL -> pi mu nu) = 0.2701 +-
0.0009 B(KL -> pi+ pi- pi0) = 0.1252 +- 0.0007 B(KL -> pi0 pi0 pi0) = 0.1945 +-
0.0018 B(KL -> pi+ pi-) = (1.975 +- 0.012)E-3, and B(KL -> pi0 pi0) = (0.865 +-
0.010)E-3, where statistical and systematic errors have been summed in
quadrature. We also determine the CP violation parameter |eta+-| to be (2.228
+- 0.010)E-3. Several of these results are not in good agreement with averages
of previous measurements.


title: Measurements of Semileptonic KL Decay Form Factors

abstract:
  We present new measurements of KL semileptonic form factors using data
collected in 1997 by the KTeV (E832) experiment at Fermilab. The measurements
are based 1.9 million KL->pi e nu and 1.5 million KL->pi mu nu decays. For
f+(t), we measure both a linear and quadratic term lambda+' = (20.64 +-
1.75)E-3 and lambda+'' = (3.20 +- 0.69)E-3. For f0(t), we find lambda0 = (13.72
+- 1.31)E-3. These form factors are consistent with K+- form factors,
suggesting that isospin symmetry breaking effects are small. We use our
measured values of the form factors to evaluate the decay phase space
integrals, IK(e) = 0.15350 +- 0.00105 and IK(mu) =0.10165 +- 0.00080, where
errors include uncertainties arising from the form factor parametrizations.


title: Multiplicity of charged particles in Pb-Pb collisions at SPS energies

abstract:
  The multiplicity of charged particles in the central rapidity region has been
measured by the NA57 experiment in Pb--Pb collisions at the CERN SPS at two
beam momenta: 158 A GeV/{\it c} and 40 A GeV/{\it c}. The value of
$dN_{ch}/d\eta$ at the maximum has been determined and its behaviour as a
function of centrality has been studied in the centrality range covered by NA57
(about 50% of the inelastic cross section). The multiplicity increases
approximately logarithmically with the centre of mass energy.


title:
Branching Fractions and CP Asymmetries in B0 --> K+ K- K0S and B+ --> K+
  K0S K0S

abstract:
  We measure the branching fractions and CP asymmetries in the decays B0 -->
K+K-K0S and B+ --> K+K0S K0S using a sample of approximately 122 million BBbar
pairs collected by the BaBar detector. From a time-dependent analysis of the K+
K- K0S sample that excludes phi K0S, the values of the CP-violation parameters
are S = -0.56 +/- 0.25 +/- 0.04 and C = -0.10 +/- 0.19 +/- 0.10, where the
first uncertainty is statistical, the second is systematic. We confirm that the
final state is nearly purely CP-even. Using this result and setting C=0, we
extract the Standard Model parameter sin2beta = 0.57 +/- 0.26 +/- 0.04 +0.17/-0
where the last error is due to uncertainty on the CP content. We present the
first measurement of the CP-violating charge asymmetry ACP(B+ --> K+K0S K0S) =
-0.04 +/- 0.11 +/- 0.02, with a 90% confidence-level interval of [-0.23, 0.15].
The branching fractions are BF(B0 --> K+K-K0) = (23.8 +/- 2.0 +/- 1.6) x
10^{-6} and BF(B+ --> K+K0S K0S) = (10.7 +/- 1.2 +/- 1.0) x 10^{-6}.


title: Measurement of Branching Fraction and CP Asymmetry in B+ ->rho+ pi0

abstract:
  We report a measurement of the branching fraction for the decay $B^+ \to
\rho^+\pi^0$ based on a 140 ${\rm fb}^{-1}$ data sample collected with the
Belle detector at the KEKB asymmetric $e^+e^-$ collider. We measure the
branching fraction ${\cal B}(B^+ \to \rho^+\pi^0)=(13.2\pm 2.3({\rm
stat.})^{+1.4}_{-1.9}({\rm sys.}))\times 10^{-6}$, and the CP-violating
asymmetry ${\cal A}_{CP}(B^\mp \to \rho^\mp\pi^0)=0.06\pm0.19({\rm
stat.})^{+0.04}_{-0.06}({\rm sys.})$.


title: Measurement of the Strange Spectral Function in Hadronic tau Decays

abstract:
  Tau lepton decays with open strangeness in the final state are measured with
the OPAL detector at LEP to determine the strange hadronic spectral function of
the tau lepton. The decays T- ->(Kpi)-nu tau, (Kpipi)-nu tau and (Kpipipi) -nu
tau with final states consisting of neutral and charged kaons and pions have
been studied. The invariant mass distributions of 93.4% of these final states
have been experimentally determined. Monte Carlo simulations have been used for
the remaining 6.6% and for the strange final states including eta mesons. The
reconstructed strange final states, corrected for resolution effects and
detection efficiencies, yield the strange spectral function of the tau lepton.
The moments of the spectral function and the ration of strange to non-strange
moments, which are important input parameters for theoretical analysis, are
determined. Furthermore, the branching fractions B(tau- -> K-pi0nu
tau)=(0.471+-0.064stat+_0.022sys)% and B(tau- -> K-pi+pi-nu
tau)=(0.415+-0.059stat+-0.031sys)% have been measured.


title:
Measurements of the Charge Asymmetry of the Dalitz Plot Parameters for
  $K^{\pm}\to\pi^{\pm}\pi^0\pi^0$ Decays

abstract:
  The charge asymmetry of the g, h, and k Dalitz plot parameters for
$K^{\pm}\to\pi^{\pm}\pi^0\pi^0$ decays has been measured with 35 GeV/c hadron
beams at the 70 GeV IHEP accelerator. The g, h and k values obtained appear to
be identical for $K^{\pm}\to\pi^{\pm}\pi^0\pi^0$ decays within the errors
quoted. In particular, the charge asymmetry $A_g = (g^+ - g^-)/(g^+ + g^-)$ of
the slope g is equal to $(0.2 \pm 1.9)\cdot 10^{-3}$.


title:
Search for supersymmetric particles assuming R-parity non-conservation
  in e+e- collisions at sqrt{s} = 192 to 208 GeV

abstract:
  Searches for pair-production of supersymmetric particles under the assumption
of non-conservation of R-parity with a dominant LLEbar or UbarDbarDbar term
have been performed using the data collected by the DELPHI experiment at LEP in
e+e- collisions at centre-of-mass energies from 192 up to 208 GeV. No excess of
data above Standard Model expectations was observed. The results were used to
constrain the MSSM parameter space and to derive limits on the masses of
supersymmetric particles.


title:
Study of Tau-pair Production in Photon-Photon Collisions at LEP and
  Limits on the Anomalous Electromagnetic Moments of the Tau Lepton

abstract:
  Tau-pair production in the process e+e- -> e+e-tau+tau- was studied using
data collected by the DELPHI experiment at LEP2 during the years 1997 - 2000.
The corresponding integrated luminosity is 650 pb^{-1}. The values of the
cross-section obtained are found to be in agreement with QED predictions.
Limits on the anomalous magnetic and electric dipole moments of the tau lepton
are deduced.


title:
The measurement of alpha_s from event shapes with the DELPHI detector at
  the highest LEP energies

abstract:
  Hadronic event shape distributions are determined from data in e+e-
collisions between 183 and 207 GeV. From these the strong coupling alpha_s is
extracted in O(alpha_s^2), NLLA and matched O(alpha_s^2)+NLLA theory.
Hadronisation corrections evaluated with fragmentation model generators as well
as an analytical power ansatz are applied. Comparing these measurements to
those obtained at and around M_Z allows a combined measurement of alpha_s from
all DELPHI data and a test of the energy dependence of the strong coupling.


title:
Search for fermiophobic Higgs bosons in final states with photons at LEP
  2

abstract:
  Higgs boson production with subsequent decay to photons was searched for in
the data collected by the DELPHI detector at centre-of-mass energies between
183 GeV and 209 GeV, corresponding to a total integrated luminosity of nearly
650 pb^{-1}. No evidence for a signal was found, and limits were set on h0Z0
and h0A0 production with h0 decay to photons. These results were used to
exclude regions in the parameter space of fermiophobic scenarios of Two Higgs
Doublet Models.


title: Tevatron Collider Operations and Plans

abstract:
  Run II of the Tevatron Collider is reviewed, emphasizing operations through
March 15, 2004. The Run II Luminosity Upgrade plans and luminosity projections
through 2009 are discussed.


title: Latest QCD results from LEP

abstract:
  We summarise the latest experimental QCD studies based on data from LEP.
Measurements of the quark and gluon jet fragmentation functions are discussed,
including a new algorithm to infer the properties of unbiased gluon jets. We
describe a new test for destructive interference in the radiation of soft
gluons from a three-parton system. Finally, we report the latest combined value
of the strong coupling, measured using event shape observables.


title: QCD Physics at the Tevatron

abstract:
  Results on recent QCD measurements performed at the Tevatron ppbar Collider
at sqrt{s} = 1.96 TeV are here reported. The inclusive jet and dijet mass cross
sections are compared to NLO pQCD calculations and to Run I results. The
production rates and kinematic properties of W + jets production processes are
compared to ``enhanced'' LO theoretical predictions. Non-perturbative ``soft''
interactions leading to the underlying event are studied and compared to QCD
Monte Carlo phenomenological models.


title: Results in Charm Physics from Babar Experiment

abstract:
  Recent measurements in the charm sector at BaBar are reviewed. The scope of
the presentation includes the observation of two new narrow mesons in the
D+(s)pi0 and D+(s)pi0gamma final states as well as the measurement of D0-D0bar
mixing parameters by means of two methods: using the doubly-Cabibbo-suppressed
D0 decay to K+pi- and using the ratios of lifetimes extracted from samples of
D0 mesons decaying to K-pi+, K-K+, and pi-pi+.


title:
Initial State Radiation and Inclusive Hadron Production Measurements at
  BABAR

abstract:
  The status of analysis of processes with hard photon emitted from the initial
state (ISR) at BABAR is presented.
  We tag events by the presence of a hard photon in the detector, then
reconstruct mu+mu- and several exclusive hadronic final states. The invariant
mass of the final state determines an effective collision center of mass energy
at which these measurements can be compared with results from direct e+e-
annihilation process. The first results on e+e- --> 2h+2h-, where h=pi,K and on
e+e- --> J/psi, obtained with a sample of 89.3/fb, are presented.
  Measurements of inclusive eta, pi+, K+ and p/anti-p production cross sections
below the Y(4S) resonance are also presented. These measurements have nearly
complete momentum coverage and precision comparable to the best measurements at
higher energies. They therefore allow for precise tests of QCD predictions and
fragmentation models at 10.54 GeV and of their scaling properties.


title:
Search for the Lepton Flavor Violation Processes $J/\psi \to$ $\mu\tau$
  and $e\tau$

abstract:
  The lepton flavor violation processes $J/\psi \to \mu\tau$ and $e\tau$ are
searched for using a sample of 5.8$\times 10^7$ $J/\psi$ events collected with
the BESII detector. Zero and one candidate events, consistent with the
estimated background, are observed in $J/\psi \to \mu\tau, \tau\to
e\bar\nu_e\nu_{\tau}$ and $J/\psi\to e\tau, \tau\to\mu\bar\nu_{\mu}\nu_{\tau}$
decays, respectively. Upper limits on the branching ratios are determined to be
$Br(J/\psi\to\mu\tau)<2.0 \times 10^{-6}$ and $Br(J/\psi \to e\tau) < 8.3
\times10^{-6}$ at the 90% confidence level (C.L.).


title:
Photon Events with Missing Energy in e+e- Collisions at sqrt{s} = 130 to
  209 GeV

abstract:
  The production of single- and multi-photon events has been studied in the
reaction e+e- -> gamma (gamma) + invisible particles. The data collected with
the DELPHI detector during the years 1999 and 2000 at centre-of-mass energies
between 191 GeV and 209 GeV was combined with earlier data to search for
phenomena beyond the Standard Model. The measured number of light neutrino
families was consistent with three and the absence of an excess of events
beyond that predicted by the Standard Model processes was used to set limits on
new physics. Both model-independent searches and searches for new processes
predicted by supersymmetric and extra-dimensional models have been made. Limits
on new non-standard model interactions between neutrinos and electrons were
also determined.


title: Sparticle Reconstruction at LHC

abstract:
  In this report a review of recent studies made to understand the capability
to discover and measure properties of SUSY particles at LHC is discussed. The
expected resolution on sparticle masses is discussed on the basis of studies
performed by the ATLAS and CMS collaborations.


title: B Physics at CDF

abstract:
  Due to the large b-bbar cross section at 1.96 TeV p-pbar collisions, the
Tevatron is currently the most copious source of B hadrons. Recent detector
upgrades for Run II have made these more accessible, allowing for a wide range
of B and CP violation physics with B hadrons of all flavours. In this paper we
present B-physics results, and, using the versatile hadronic Two Track Trigger,
a search for Xi(1860), from up to 240/pb of data.


title:
Study of the B- --> J/psi K- pi+ pi- Decay and Measurement of the B- -->
  X(3872) K- Branching Fraction

abstract:
  We study the decay B- --> J/psi K- pi+ pi- using 117 million BBbar events
collected at the Y(4S) resonance with the BaBar detector at the PEP-II e+ e-
asymmetric-energy storage ring. We measure the branching fractions Br(B- -->
J/psi K- pi+ pi-) = (116 +- 7 (stat.) +- 9(syst.))* 10-5 and Br(B- -->
X(3872)K-)* Br (X(3872) --> J/psi pi+ pi-) =(1.28+- 0.41)* 10-5 and find the
mass of the X(3872) to be 3873.4 +- 1.4 MeV/c2. We search for the h_c narrow
state in the decay B- --> h_c K-, h_c --> J/psi pi+ pi- and for the decay B-
--> J/psi D0 pi-, with D0 --> K- pi+. We set the 90% C.L. limits Br(B- --> h_c
K-)* Br (h_c --> J/psi pi+ pi-) <3.4 * 10-6 and Br(B- --> J/psi D0 pi-) <5.2 *
10-5.


title: The K2K SciBar Detector

abstract:
  A new near detector, SciBar, for the K2K long-baseline neutrino oscillation
expe riment was installed to improve the measurement of neutrino energy
spectrum and to study neutrino interactions in the energy region around 1 GeV.
SciBar is a 'fully active' tracking detector with fine segmentation consisting
of plastic scintillator bars. The detector was constructed in summer 2003 and
is taking data since October 2003. The basic design and initial performance is
presented.


title: Two characteristic volumes in thermal nuclear multifragmentation

abstract:
  The paper is devoted to the experimental determination of the space-time
characteristics for the target multifragmentation in p(8.1GeV) + Au collisions.
The experimental data on the fragment charge distribution and kinetic energy
spectra are analyzed within the framework of the statistical multifragmentation
model. It is found that the partition of hot nuclei is specified after
expansion of the target spectator to a volume equal to Vt = (2.9 +- 0.2) Vo,
with Vo as the volume at normal density. However, the freeze-out volume is
found to be Vf = (11 +- 3) Vo. At freeze-out, all the fragments are well
separated and only the Coulomb force should be taken into account. The results
are in accordance with a scenario of spinodal disintegration of hot nuclei.


title:
Result of T-violating muon polarization measurement in the $K^+ \to
  \pi^0 \mu^+ \nu$ decay

abstract:
  A search for T-violating muon polarization in the $K^+ \to \pi^0 \mu^+\nu$
decay has been performed at KEK using stopped kaons. A new improved limit was
obtained, $P_T= -0.0017 \pm 0.0023 (stat) \pm 0.0011 (syst)$, corresponding to
a 90 % confidence limit of $| P_T| < 0.0050$. The T-violating parameter was
also determined to be Im$\xi = -0.0053 \pm 0.0071 (stat) \pm 0.0036 (syst)$,
and $|{rm Im}\xi| < 0.016$ (90 % CL).


title:
Measurement of Coherent Emission and Linear Polarization of Photons by
  Electrons in the Strong Fields of Aligned Crystals

abstract:
  We present new results regarding the features of high energy photon emission
by an electron beam of 178 GeV penetrating a 1.5 cm thick single Si crystal
aligned at the Strings-Of-Strings (SOS) orientation. This concerns a special
case of coherent bremsstrahlung where the electron interacts with the strong
fields of successive atomic strings in a plane and for which the largest
enhancement of the highest energy photons is expected. The polarization of the
resulting photon beam was measured by the asymmetry of electron-positron pair
production in an aligned diamond crystal analyzer. By the selection of a single
pair the energy and the polarization of individual photons could be measured in
an the environment of multiple photons produced in the radiator crystal.
Photons in the high energy region show less than 20% linear polarization at the
90% confidence level.


title: Recent Bes Results on psi(3770) and D Meson Production and Decay

abstract:
  Using a data sample of 17.7 $\rm pb^{-1}$ collected at 3.773 GeV with the
BES-II detector at the BEPC, the cross sections for $D^0 \bar D^{0}$ and
$D^+D^-$ productions at 3.773 GeV have been measured. From the data sample
about 33 $\rm pb^{-1}$ taken around 3.773 GeV, 3 purely leptonic decay events
of $D^+ \to \mu^+\nu$ are observed. The branching fraction and the decay
constant are measured to be $BF(D^+ \to
\mu^+\nu)=(0.120^{+0.092+0.010}_{-0.063-0.009}) %$ and
$f_D=(365^{+121+32}_{-113-28})$ MeV. The semileptonic decay branching fractions
for $D^0 \to K^-e^+\nu$, $D^0 \to \pi^-e^+\nu$ and $D^+ \to \bar K^0 e^+\nu$
are measured to be $BF(D^0 \to K^-e^+\nu_e)=(3.52 \pm 0.36\pm 0.25)%$, $BF(D^0
\to \pi^-e^+\nu_e)=(0.36 \pm 0.14\pm 0.03)%$ and $BF(D^+ \to \bar K^0
e^+\nu_e)=(8.64 \pm 1.51\pm 0.72)%$. The vector form factors are determined to
be $|f^K_+(0)| = 0.75 \pm 0.04 \pm 0.03$ and $|f^{\pi}_+(0)| = 0.76 \pm 0.15
\pm 0.06$. The ratio of the two form factors is extracted to be
$|f^{\pi}_+(0)/f^K_+(0)|= 1.01 \pm 0.20 \pm 0.08$. The ratio of the decay
widths is measured to be $\Gamma(D^0 \to K^-e^+\nu)/\Gamma(D^+ \to \bar K^0
e^+\nu) =1.04\pm 0.21 \pm 0.08$. From the data sample of about 27 $\rm
pb^{-1}$, the evidence of $\psi(3770) \to J/\psi \pi^+\pi^-$ non-${D \bar D}$
decay is observed. The branching fraction is determined to be $BF(\psi(3770)
\to J/\psi \pi^+\pi^-)=(0.34\pm 0.14 \pm 0.08)%$, corresponding to the partial
width of $\Gamma(\psi(3770) \to J/\psi \pi^+\pi^-) = (80 \pm 32 \pm 21)$ keV.


title:
Direct Measurements of the Branching Fractions for $D^0 \to K^-e^+\nu_e$
  and $D^0 \to \pi^-e^+\nu_e$ and Determinations of the Form Factors
  $f_{+}^{K}(0)$ and $f^{\pi}_{+}(0)$

abstract:
  The absolute branching fractions for the decays $D^0 \to K^-e ^+\nu_e$ and
$D^0 \to \pi^-e^+\nu_e$ are determined using $7584\pm 198 \pm 341$ singly
tagged $\bar D^0$ sample from the data collected around 3.773 GeV with the
BES-II detector at the BEPC. In the system recoiling against the singly tagged
$\bar D^0$ meson, $104.0\pm 10.9$ events for $D^0 \to K^-e ^+\nu_e$ and $9.0
\pm 3.6$ events for $D^0 \to \pi^-e^+\nu_e$ decays are observed. Those yield
the absolute branching fractions to be $BF(D^0 \to K^-e^+\nu_e)=(3.82 \pm
0.40\pm 0.27)%$ and $BF(D^0 \to \pi^-e^+\nu_e)=(0.33 \pm 0.13\pm 0.03)%$. The
vector form factors are determined to be $|f^K_+(0)| = 0.78 \pm 0.04 \pm 0.03$
and $|f^{\pi}_+(0)| = 0.73 \pm 0.14 \pm 0.06$. The ratio of the two form
factors is measured to be $|f^{\pi}_+(0)/f^K_+(0)|= 0.93 \pm 0.19 \pm 0.07$.


title:
Measurement of the Proton Structure Function F_2 at low Q^2 in QED
  Compton Scattering at HERA

abstract:
  The proton structure function F_2(x,Q^2) is measured in inelastic QED Compton
scattering using data collected with the H1 detector at HERA. QED Compton
events are used to access the kinematic range of very low virtualities of the
exchanged photon, Q^2, down to 0.5 GeV^2, and Bjorken x up to \sim 0.06, a
region which has not been covered previously by inclusive measurements at HERA.
The results are in agreement with the measurements from fixed target
lepton-nucleon scattering experiments.


title:
Jets in Deep-Inelastic Scattering at HERA and determinations of
  $\alpha_s$

abstract:
  Several methods to extract the strong coupling constant $\alpha_s$ by means
of highly energetic jets in Deep-Inelastic Scattering are presented. The
results from the various methods agree with one another and with the world
average. The errors are competetive to those achieved in $\alpha_s$
determinations in other processes such as proton--anti-proton scattering.


title: A Precision Measurement of the Mass of the Top Quark

abstract:
  The Standard Model of particle physics contains about two dozen parameters -
such as particle masses - whose origins are still unknown and cannot be
predicted, but whose values are constrained through their interactions. In
particular, the masses of the top (t) quark (M_t) and W boson constrain the
mass of the long-hypothesized, but thus far not observed, Higgs boson. A
precise measurement of the top-quark mass can therefore point to where to look
for the Higgs, and indeed whether the hypothesis of a SM Higgs is consistent
with experimental data. Since top quarks are produced in pairs and decay in
only ~10^-24 s into various final states, reconstructing their mass from their
decay products is very challenging. Here we report a technique that extracts
far more information from each top-quark event and yields a greatly improved
precision on the top mass of 5.3 GeV/c^2, compared to previous measurements.
When our new result is combined with our published measurement in a
complementary decay mode and with the only other measurements available, the
new world average for M_t becomes 178.0 +- 4.3 GeV/c^2. As a result, the most
likely Higgs mass increases from the experimentally excluded value of 96
GeV/c^2 to 117 GeV/c^2, which is beyond current experimental sensitivity. The
upper limit on the Higgs mass at 95% confidence level is raised from 219
GeV/c^2 to 251 GeV/c^2.


title: Exotic particle searches with STAR at RHIC

abstract:
  We present preliminary results of the STAR experiment at RHIC on exotic
particle searches in minimum bias Au+Au collisions at $\sqrt{s_{NN}}$ = 200
GeV. We observe a narrow peak at 1734 $\pm$ 0.5 $\pm$ 5 MeV in the $\Lambda
K^0_s$ invariant mass with width consistent with the experimental resolution of
about 6 MeV within the errors. The statistical significance can be quantified
between 3 and 6 $\sigma$ depending on cuts and methods. If this peak
corresponds to a real particle state it would be a candidate for the $N^0$ or
the $\Xi^0$ I=1/2 pentaquark states.


title: Confirmation of the Double Charm Baryon Xi_cc+ via its Decay to p D+ K-

abstract:
  We observes a signal for the double charm baryon Xi_cc+ in the charged decay
mode Xi_cc+ -> p D+ K- to complement the previously reported decay Xi_cc+ ->
Lambda_c K- pi+ in data from SELEX, the charm hadro-production experiment
(E781) at Fermilab. In this new decay mode we observe an excess of 5.62 events
over an expected background estimated by event mixing to be 1.38+/-0.13 events.
The Poisson probability that a background fluctuation can produce the apparent
signal is less than 6.4E-4. The observed mass of this state is
(3518+/-3)MeV/c^2, consistent with the published result. Averaging the two
results gives a mass of (3518.7+/-1.7)MeV/c^2. The observation of this new weak
decay mode confirms the previous SELEX suggestion that this state is a double
charm baryon. The relative branching ratio Gamma(Xi_cc+ -> pD+K-)/Gamma(Xi_cc+
-> Lambda_c K- pi+) = 0.36+/-0.21.


title: The Observation of Multi-Quark Strange Metastable and Stable States

abstract:
  In the metastable state sector the $\Lambda p$, $\Lambda\pi\pi$ and $\Lambda
p \pi$ resonances found in n+$^{12}C$- collisions at 7 GeV/c. Preliminary
results show that the predicted peaks has been confirmed in $p^{12}C$ collision
at 10 GeV/c. In the stable state sector candidates for S=-2 light and heavy
dibaryons observed in p+$^{12}C$ collision at 10 GeV/c.


title:
Measurement of Neutrino Oscillation with KamLAND: Evidence of Spectral
  Distortion

abstract:
  We present results of a study of neutrino oscillation based on a 766 ton-year
exposure of KamLAND to reactor anti-neutrinos. We observe 258 \nuebar\
candidate events with energies above 3.4 MeV compared to 365.2 events expected
in the absence of neutrino oscillation. Accounting for 17.8 expected background
events, the statistical significance for reactor \nuebar disappearance is
99.998%. The observed energy spectrum disagrees with the expected spectral
shape in the absence of neutrino oscillation at 99.6% significance and prefers
the distortion expected from \nuebar oscillation effects. A two-neutrino
oscillation analysis of the KamLAND data gives \DeltaMSq =
7.9$^{+0.6}_{-0.5}\times10^{-5}$ eV$^2$. A global analysis of data from KamLAND
and solar neutrino experiments yields \DeltaMSq =
7.9$^{+0.6}_{-0.5}\times10^{-5}$ eV$^2$ and \ThetaParam =
0.40$^{+0.10}_{-0.07}$, the most precise determination to date.


title: Recent Electroweak Measurements from the H1 and ZEUS Experiments

abstract:
  Neutral-current ({NC}) and charged-current ({CC}) deep inelastic scattering
({DIS}) reactions have been studied in $e^+p$ and $e^-p$ collisions using the
{H1} and {ZEUS} detectors at {HERA I}. Following the upgrade of the {HERA}
accelerator, the {HERA II} program recently started with the first data in
$e^+p$ scattering with longitudinally polarised positrons. In this paper, a
summary of the electroweak results from {HERA I} and the first measurement of
the cross section for $e^+p$ CC {DIS} at a longitudinal polarisation value of
33% from the {ZEUS} collaboration are presented.


title: MACRO results on atmospheric neutrino oscillations

abstract:
  The final results of the MACRO experiment on atmospheric neutrino
oscillations are presented. The data concern different event topologies with
average neutrino energies of ~ 3 and ~ 50 GeV. Multiple Coulomb Scattering of
the high energy muons was used to estimate the neutrino energy event by event.
The angular distributions, the L/E_nu distribution, the particle ratios and the
absolute fluxes all favour nu_mu --> nu_tau oscillations with maximal mixing
and Delta m^2 ~ 0.0023 eV^2. Emphasis is given to measured ratios which are not
affected by Monte Carlo (MC) absolute normalization; a discussion is made on MC
uncertainties.


title: The $\sigma $ pole in $J/\psi \to \omega \pi^+ \pi^-$

abstract:
  Using a sample of 58 million $J/\psi$ events recorded in the BESII detector,
the decay $J/\psi \to \omega \pi^+ \pi^-$ is studied. There are conspicuous
$\omega f_2(1270)$ and $b_1(1235)\pi$ signals. At low $\pi \pi$ mass, a large
broad peak due to the $\sigma$ is observed, and its pole position is determined
to be $(541 \pm 39) $ - $i$ $(252 \pm 42)$ MeV from the mean of six analyses.
The errors are dominated by the systematic errors.


title:
Measurement of the radiative decay width \Gamma[\Lambda(1520) -->
  \Lambda \gamma] with the SPHINX spectrometer

abstract:
  The radiative decay \Lambda(1520) --> \Lambda \gamma was measured directly in
the study of exclusive diffractive-like reaction p + N --> \Lambda(1520) K^+ +
N, \Lambda(1520) --> \Lambda \gamma with the SPHINX spectrometer. The values of
the branching and partial width of this radiative decay were obtained:
BR[\Lambda(1520) --> \Lambda \gamma] = (1.02+/-0.21(stat)+/-0.15(syst))x10^{-2}
and \Gamma[\Lambda(1520) --> \Lambda \gamma] = 159+/-33(stat)+/-26(syst) keV.


title:
Measurements of the Branching Fraction and CP-Violation Asymmetries in
  B^0-->f0(980)Ks

abstract:
  We present measurements of the branching fraction and CP-violating
asymmetries in the decay $B^0 \to f_0(980)K^0_S$. The results are obtained from
a data sample of $123\times10^6$ $\Upsilon(4S) \to B\bar{B}$ decays. From a
time-dependent maximum likelihood fit we measure the branching fraction ${\cal
B}(\Bz\to f_0(980)(\to\pi^+\pi^-)K^0)=(6.0\pm0.9\pm0.6\pm1.2)\times 10^{-6}$,
the mixing-induced CP violation parameter $S=-1.62^{+0.56}_{-0.51} \pm 0.09\pm
0.04$ and the direct CP violation parameter $C=0.27\pm 0.36\pm 0.10 \pm 0.07 $,
where the first errors are statistical, the second systematic and the third due
to model uncertainties. We measure the $f_0(980)$ mass and width to be
$m_{f_0(980)}=(980.6 \pm 4.1 \pm 0.5\pm 4.0){\rm MeV}/c^2$ and
$\Gamma_{f_0(980)}=(43^{+12}_{-9} \pm 3 \pm 9){\rm MeV}/c^2$, respectively.


title:
Search for Single Top Quark Production and Measurements of Top Quark
  Decay Properties at the Tevatron

abstract:
  We present preliminary results on the search for single top quark production
and measurements of top quark decay properties by the CDF and D0 collaborations
of the Fermilab Tevatron collider, using datasets of 108-164 pb^-1 of
proton-antiproton collisions.


title: Hidden and Open Beauty Production in 920 GeV Proton-Nucleus Collisions

abstract:
  The b-barb and Upsilon production cross section has been measured in
collisions of 920 GeV protons on different nuclear targets using the HERA-B
detector. On the invariant mass spectra of e+e- or mu+mu- events originating
from common vertex, the Upsilon search was performed. The identification of
b-barb events was done using the same sample via inclusive bottom quark decays
into J/psi by exploiting the longitudinal separation of the J/psi -> l+l- decay
vertices from the primary proton nucleus interaction. For both hidden and open
beauty decays, the mu+mu- and the e+e- decay channels have been reconstructed.
The most recent measurement, using data collected in 2002/2003, yields a
preliminary cross section in the combined analysis of sigma(b-barb) =
(12.3(+3.5)(-3.2)) nb/nucleon and for the hidden beauty production the
preliminary measurement of BR(Upsilon -> l+l-) x d sigma(Upsilon ->
l+l-)/dy|_(y=0) = (3.4 +-0.8) pb/nucleon.


title: Recent QCD results from OPAL

abstract:
  Some recent QCD results from the OPAL Collaboration are summarized. In
particular: a test of color reconnection models and a search for glueballs
using gluon jets with a rapidity gap; a study of unbiased gluon jet properties
using a new technique called jet boost algorithm; a measurement of the strong
coupling constant from radiative events.


title: Charmed hadron spectroscopy from FOCUS

abstract:
  We present charmed hadron spectroscopy results from the photoproduction
experiment FOCUS (FNAL-E831). We report new, precise measurements of the masses
and widths of the $\dmeson_2^{*+}$ and $\dmeson_2^{*0}$ mesons, evidence for
the
  $\dmeson_0^{*+}$ and $\dmeson_0^{*0}$ broad states (the first such evidence
in
  $\dzero \piplus$), and confirmation of the recently observed
  $\dmeson_s^+(2317)$ charmed-strange state.


title:
First observation of a narrow charm-strange meson DsJ(2632) -> Ds eta
  and D0 K+

abstract:
  We report the first observation of a charm-strange meson DsJ(2632) at a mass
of 2632.6+/-1.6 MeV/c^2 in data from SELEX, the charm hadro-production
experiment E781 at Fermilab. This state is seen in two decay modes, Ds eta and
D0 K+. In the Ds eta decay mode we observe an excess of 49.3 events with a
significance of 7.2sigma at a mass of 2635.9+/-2.9 MeV/c^2. There is a
corresponding peak of 14 events with a significance of 5.3sigma at 2631.5+/-1.9
MeV/c^2 in the decay mode D0 K+. The decay width of this state is <17 MeV/c^2
at 90% confidence level. The relative branching ratio Gamma(D0K+)/Gamma(Dseta)
is 0.16+/-0.06. The mechanism which keeps this state narrow is unclear. Its
decay pattern is also unusual, being dominated by the Ds eta decay mode.