Showing 2002 · hep-exShow all

21 papers · 2 filters

hep-ex2002★ 13 cited

Simultaneous Measurement of the B0 Meson Lifetime and Mixing Frequency with B0 --> D*- l+ nu Decays

the BABAR Collaboration, B. Aubert

We measure the B0 lifetime τ_{B0} and the B0-B0bar oscillation frequency Δm_d with a sample of approximately 14,000 exclusively reconstructed B0 --> D*- l+ nu signal events, select…

hep-ex2002★ 7 cited

Measurement of the B0 meson lifetime with partial reconstruction of B0 --> D*- pi+ and B0 --> D*- rho+ decays

The BABAR Collaboration, B. Aubert

The neutral meson lifetime is measured with the data collected by the BaBar detector at the PEP-II storage ring during the years 1999 and 2000, with a total integrated luminosi…

hep-ex2002★ 13 cited

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

B. Aubert

We present a measurement of the branching fraction for the decay of the neutral meson into the final state . The data set contains approximately 56 million $B\bar{B}…

hep-ex2002★ 27 cited

Measurement of the Branching Fraction for Inclusive Semileptonic B Meson Decays

B. Aubert

A largely model-independent measurement of the inclusive electron momentum spectrum and branching fraction for semileptonic decays of B mesons is presented based on data recorded a…

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★ 13 cited

Simultaneous Measurement of the B0 Meson Lifetime and Mixing Frequency with B0 --> D*- l+ nu_l Decays

B. Aubert, The BABAR Collaboration

We measure the B0 lifetime tau_B0 and the B-Bbar oscillation frequency Deltam_d with a sample of approximately 14,000 exclusively reconstructed B0 -> D*- l+ nu_l signal events, sel…

hep-ex2002★ 121 cited

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

The BABAR Collaboration, B. Aubert

We present measurements of branching fractions and CP-violating asymmetries for neutral B meson decays to two-body final states of charged pions and kaons based on a sample of abou…

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★ 266 cited

Measurement of the CP-Violating Asymmetry Amplitude sin2beta

B. Aubert

We present results on time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 88 million Y(4S) --> B Bbar…

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★ 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★ 2 cited

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

The DELPHI Collaboration, J. Abdallah

Observation is made of rapidity-alignment of K+K- and ppbar pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to a…

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★ 7 cited

Measurement of the Branching Fraction and CP Content for the Decay B0 --> D*+ D*-

The BaBar Collaboration, B. Aubert

We report a measurement of the branching fraction of the decay B^0 --> D^{*+} D^{*-} and of the CP-odd component of its final state using the BaBar detector. With data correspondin…

hep-ex2002★ 27 cited

Search for T and CP Violation in B0-anti-B0 Mixing with Inclusive Dilepton Events

B. Aubert

We report the results of a search for T and CP violation in B0-anti-B0 mixing using an inclusive dilepton sample collected by the BaBar experiment at the PEP-II B Factory. The asym…

hep-ex2002★ 13 cited

Measurement of the B0 Lifetime with Partially Reconstructed B0 --> D*- l+ nu Decays

The BABAR Collaboration, B. Aubert

The B0 lifetime has been measured with a sample of 23 million BBbar pairs collected by the BaBar detector at the PEP-II e+e- storage ring during 1999 and 2000. Events from the semi…

hep-ex2002★ 33 cited

Evidence for hadronic deconfinement in -p collisions at 1.8 TeV

T. Alexopoulos, E. W. Anderson, A. T. Bujak +13

We have measured deconfined hadronic volumes, fm, produced by a one dimensional (1D) expansion. These volumes are directly proportional to the charged partic…

hep-ex2002★ 18 cited

Search for Charged Higgs Bosons in e+e- Collisions at sqrt(s)=189-202 GeV

The DELPHI Collaboration, J. Abdallah

A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189 GeV to 202 GeV.…

hep-ex2002★ 29 cited

Search for the Rare Decays B --> Kl^+l^- and B --> K^*l^+l^-

B. Aubert et al

We present results from a search for the flavor-changing neutral current decays and , where is either an or $μ^+μ…