Showing 2002 · hep-exShow all

23 papers · 2 filters

hep-ex2002★ 889 cited

Indications of Neutrino Oscillation in a 250 km Long-baseline Experiment

K2K Collaboration, M. H. Ahn

The K2K experiment observes indications of neutrino oscillation: a reduction of flux together with a distortion of the energy spectrum. Fifty-six beam neutrino events are obs…

hep-ex2002★ 59 cited

Search for anti-electron-neutrinos from the Sun at Super-Kamiokande-I

Kamiokande collaboration, Y. Gando

We present the results of a search for low energy from the Sun using 1496 days of data from Super-Kamiokande-I. We observe no significant excess of events and set an uppe…

hep-ex2002★ 1 cited

Recent Results from the K2K Experiment

C. W. Walter

The K2K experiment has collected approximately half of its allocated protons on target between June of 1999 and July of 2001. These proceedings give a short introduction to the exp…

hep-ex2002★ 5 cited

News from the Muon (g-2) Experiment at BNL

M. Deile

The magnetic moment anomaly a_mu = (g_mu - 2) / 2 of the positive muon has been measured at the Brookhaven Alternating Gradient Synchrotron with an uncertainty of 0.7 ppm. The new…

hep-ex2002★ 44 cited

Study of the Process in the C.M.Energy Range 1.05-1.38 GeV with CMD-2

R. R. Akhmetshin

The process has been studied with the CMD-2 detector using about 950 events detected in the center-of-mass energy range from 1.05 to 1.38 GeV. The cross se…

hep-ex2002★ 216 cited

Search for Supernova Relic Neutrinos at Super-Kamiokande

Kamiokande Collaboration

A search for the relic neutrinos from all past core-collapse supernovae was conducted using 1496 days of data from the Super-Kamiokande detector. This analysis looked for electron-…

hep-ex2002★ 10 cited

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

K. Abe

We report a search for B0s - B0s-bar oscillations using a sample of 400,000 hadronic Z0 decays collected by the SLD experiment. The analysis takes advantage of the electron beam po…

hep-ex2002★ 395 cited

Measurement of the Positive Muon Anomalous Magnetic Moment to 0.7 ppm

G. W. Bennett

A higher precision measurement of the anomalous g value, a_mu = (g-2)/2, for the positive muon has been made at the Brookhaven Alternating Gradient Synchrotron, based on data colle…

hep-ex2002★ 4 cited

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

SLD Collaboration, Kenji Abe

We present an improved direct measurement of the parity-violation parameter A_b in the Z boson-b quark coupling using a self-calibrating track-charge technique applied to a sample…

hep-ex2002★ 9 cited

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

D0 collaboration, V. M. Abazov

We report the first search for supersymmetric particles via s-channel production and decay of smuons or muon sneutrinos at hadronic colliders. The data for the two-muon and two-jet…

hep-ex2002★ 6 cited

A Search for Time-Dependent B0s-B0sbar Oscillations Using Exclusively Reconstructed Ds+/- Mesons

SLD Collaboration

A search for Bs0-Bs0bar oscillations is performed using a sample of 400,000 hadronic Z0 decays collected by the SLD experiment. The Bs0 candidates are reconstructed in the Bs0 to D…

hep-ex2002★ 36 cited

Measurement of the residual energy of muons in the Gran Sasso underground Laboratories

The MACRO Collaboration, M. Ambrosio

The MACRO detector was located in the Hall B of the Gran Sasso underground Laboratories under an average rock overburden of 3700 hg/cm^2. A transition radiation detector composed o…

hep-ex2002★ 34 cited

Search for Nucleon Decays induced by GUT Magnetic Monopoles with the MACRO Experiment

The MACRO Collaboration

The interaction of a Grand Unification Magnetic Monopole with a nucleon can lead to a barion-number violating process in which the nucleon decays into a lepton and one or more meso…

hep-ex2002★ 15 cited

Multiple Jet Production at Low Transverse Energies in p-pbar Collisions at Root(s) = 1.8 TeV

D0 collaboration, V. M. Abazov

We present data on multiple production of jets with transverse energies near 20 GeV in p-pbar collisions at Root(s) = 1.8 TeV. QCD calculations in the parton-shower approximation o…

hep-ex2002★ 180 cited

Recent Progress in Neutrino Factory and Muon Collider Research within the Muon Collaboration

M. M. Alsharo'a

We describe the status of our effort to realize a first neutrino factory and the progress made in understanding the problems associated with the collection and cooling of muons tow…

hep-ex2002★ 11 cited

Tracking Performance of the Scintillating Fiber Detector in the K2K Experiment

B. J. Kim, T. Iwashita, T. Ishida +39

The K2K long-baseline neutrino oscillation experiment uses a Scintillating Fiber Detector (SciFi) to reconstruct charged particles produced in neutrino interactions in the near det…

hep-ex2002★ 746 cited

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

Kamiokande Collaboration

A number of different fits to solar neutrino mixing and mass square difference were performed using 1496 days of Super-Kamiokande-I's solar neutrino data. These data select two all…

hep-ex2002

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

Koya Abe etal

The structure of three-jet e+e- -> b bbar g events has been studied using hadronic Z0 decays recorded in the SLD experiment at SLAC. Three-jet final states were selected and the CC…

hep-ex2002★ 40 cited

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

Dzero Collaboration

Results are presented on a measurement of the ttbar pair production cross section in ppbar collisions at sqrt{s} = 1.8 TeV from nine independent decay channels. The data were colle…

hep-ex2002★ 2 cited

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

V. M. Abazov

We describe a search for evidence of minimal supergravity (mSUGRA) in 92.7 pb^(-1) of data collected with the DØdetector at the Fermilab Tevatron ppbar collider at center of mass e…

hep-ex2002★ 53 cited

Improved W boson mass measurement with the D0 detector

The D0 Collaboration, V. M. Abazov

We have measured the W boson mass using the D0 detector and a data sample of 82 pb^-1 from the Tevatron collider. This measurement used W -> e nu decays, where the electron is clos…

hep-ex2002★ 23 cited

A direct measurement of W boson decay width

Dzero Collaboration

Based on 85 pb data of \ppbar collisions at \tev\ collected using the DØdetector at Fermilab during the 1994-1995 run of the Tevatron, we present a direct mea…

hep-ex2002★ 109 cited

Measurement of the b-quark fragmentation function in Z0 decays

Koya Abe

We present a measurement of the b-quark inclusive fragmentation function in Z0 decays using a novel kinematic B-hadron energy reconstruction technique. The measurement was performe…