Showing 2001 · hep-exShow all

46 papers · 2 filters

hep-ex2001★ 26 cited

Measurement of the B0-anti-B0-Oscillation Frequency with Inclusive Dilepton Events

B. Aubert

The - oscillation frequency has been measured with a sample of 23 million $\B\bar B$ pairs collected with the BABAR detector at the PEP-II asymmetric B Factory at SL…

hep-ex2001★ 32 cited

Measurement of B0-anti-B0 Flavor Oscillations in Hadronic B0 Decays

B. Aubert

Flavor oscillations of neutral mesons have been studied in annihilation data collected with the BABAR detector at center-of-mass energies near the resonance. T…

hep-ex2001★ 19 cited

Direct CP Violation Searches in Charmless Hadronic B Meson Decays

The BABAR Collaboration, B. Aubert

We search for direct CP violation in charmless hadronic B decays observed in a sample of about 22.7 million pairs collected with the BABAR detector at the PEP-II asymmet…

hep-ex2001★ 8 cited

Search for R-parity Violating Supersymmetry in Dimuon and Four-Jets Channel

D0 collaboration, V. M. Abazov etal

We present results of a search for R-parity-violating decay of the neutralino chi_1^0, taken to be the Lightest Supersymmetric Particle. It is assumed that this decay proceeds thro…

hep-ex2001★ 12 cited

Search for Leptoquark Pairs Decaying to neutrino neutrino + jets in p anti-p Collisions at s**(1/2)=1.8 TeV

D0 Collaboration, V. M. Abazov

We present the results of a search for leptoquark (LQ) pairs in (85.2 +- 3.7) pb^{-1} of p anti-p collider data collected by the D0 experiment at the Fermilab Tevatron. We observe…

hep-ex2001★ 40 cited

Measurement of B-->K*gamma Branching Fractions and Charge Asymmetries

B. Aubert

The branching fractions of the exclusive decays and are measured from a sample of decays collected with th…

hep-ex2001★ 35 cited

The Inclusive Jet Cross Section in ppbar Collisions at sqrt{s}=1.8 TeV using the kT Algorithm

D0 Collaboration, V. M. Abazov

The central inclusive jet cross section has been measured using a successive-combination algorithm for reconstruction of jets. The measurement uses 87.3 pb^{-1} of data collected w…

hep-ex2001★ 6 cited

Measurement of the ratio of differential cross sections for W and Z boson production as a function of transverse momentum in pbar p collisions at sqrt(s)=1.8 TeV

V. M. Abazov

We report on a measurement of the ratio of the differential cross sections for W and Z boson production as a function of transverse momentum in proton-antiproton collisions at sqrt…

hep-ex2001★ 18 cited

A Search forthe Scalar Top Quark in Collisions at 1.8 TeV

D0 Collaboration, V. M. Abazov

We have performed a search for scalar top quark (stop) pair production in the inclusive electron-muon-missing transverse energy final state, using a sample of events co…

hep-ex2001★ 25 cited

Subjet Multiplicity of Gluon and Quark Jets Reconstructed with the Algorithm in Collisions

D0 collaboration, V. M. Abazov

The D0 Collaboration has studied for the first time the properties of hadron-collider jets reconstructed with a successive-combination algorithm based on relative transverse moment…

hep-ex2001★ 49 cited

Measurements of the branching fractions of exclusive charmless B meson decays with or mesons

B. Aubert

We present the results of searches for B decays to charmless two-body final states containing or mesons, based on 20.7 fb of data collected with the BABAR det…

hep-ex2001★ 7 cited

A study of B^+/- --> J/psi pi^+/- and B^+/- --> J/psi K^+/- decays: measurement of the ratio of branching fractions and search for direct CP-violating charge asymmetries

B. Aubert

We have studied the B^+/- --> J/psi pi^+/- and B^+/- --> J/psi K^+/- decays using a 20.7 fb-1 data set collected with the BABAR detector. We observe a signal of 51+/-10 B^+/- --> J…

hep-ex2001★ 9 cited

Single Intermediate Vector Boson Production in e+e- collisions at sqrt(s) = 183 and 189 GeV

DELPHI Collaboration, P. Abreu

The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52 pb^{-1} and 154 pb^{-1} collected b…

hep-ex2001★ 56 cited

Measurement of the B-->J/psi K^*(892) decay amplitudes

B. Aubert, The BABAR Collaboration

We present a measurement of the decay amplitudes in B-->J/psi K^*(892) channels using 20.7 fb-1 of data collected at the Upsilon(4S) resonance with the BABAR detector at PEP-II. We…

hep-ex2001★ 27 cited

Measurement of the B^0 and B^+ meson lifetimes with fully reconstructed hadronic final states

B. Aubert

The B0 and B+ meson lifetimes have been measured in e+e- annihilation data collected in 1999 and 2000 with the BABAR detector at center-of-mass energies near the Upsilon(4S) resona…

hep-ex2001★ 66 cited

Search for Single Top Quark Production at DZero Using Neural Networks

DZero Collaboration, V. M. Abazov et al

We present a search for electroweak production of single top quarks in ~90 pb^-1 of data collected with the DZero detector at the Fermilab Tevatron collider. Using arrays of neural…

hep-ex2001★ 16 cited

Search for New Physics Using Quaero: A General Interface to D0 Event Data

D0 Collaboration

We describe Quaero, a method that i) enables the automatic optimization of searches for physics beyond the standard model, and ii) provides a mechanism for making high energy colli…

hep-ex2001★ 16 cited

Search for First-Generation Scalar and Vector Leptoquarks

D0 Collaboration, V. M. Abazov

We describe a search for the pair production of first-generation scalar and vector leptoquarks in the eejj and enujj channels by the D0 Collaboration. The data are from the 1992--1…

hep-ex2001★ 60 cited

Measurement of production in continuum annihilations near GeV

The BABAR Collaboration, B. Aubert

The production of mesons in continuum annihilations has been studied with the BABAR detector at energies near the resonance, approximately 10.6 GeV. The meso…

hep-ex2001★ 54 cited

Ratio of the Isolated Photon Cross Sections at \sqrt{s} = 630 and 1800 GeV

V. M. Abazov

The inclusive cross section for production of isolated photons has been measured in \pbarp collisions at GeV with the \D0 detector at the Fermilab Tevatron Collide…

hep-ex2001★ 31 cited

Measurement of the anti-B ---> D* pi lepton anti-neutrino(lepton) Branching Fraction

The DELPHI Collaboration, P. Abreu

A study of b semileptonic decays into D, D pi+- and D* pi+- final states is presented. The D0, D+ and D*+ mesons are exclusively reconstructed in Z decay data recorded from 1992 to…

hep-ex2001★ 1.4k cited

The BABAR Detector

The BABAR Collaboration

BABAR, the detector for the SLAC PEP-II asymmetric e+e- B Factory operating at the upsilon 4S resonance, was designed to allow comprehensive studies of CP-violation in B-meson deca…

hep-ex2001★ 33 cited

Measurement of the decays B-->phi K and B-->phi K^*

B. Aubert, BABAR Collaboration

We have observed the decays B-->phi K and phi K^* in a sample of over 45 million B mesons collected with the BABAR detector at the PEP-II collider. The measured branching fractions…

hep-ex2001★ 20 cited

Measurement of the Mass and Width of the W Boson in e+e- Collisions at sqrt(s) = 189 GeV

The DELPHI Collaboration, P. Abreu

A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-…