Showing 1999 · hep-exShow all

30 papers · 2 filters

hep-ex1999★ 27 cited

Hard Single Diffraction in pbarp Collisions at root-s = 630 and 1800 GeV

The D0 Collaboration, B. Abbott

Using the D0 detector, we have studied events produced in proton-antiproton collisions that contain large forward regions with very little energy deposition (``rapidity gaps'') and…

hep-ex1999★ 67 cited

Precise measurement of the b-quark fragmentation function in Z0 boson decays

The SLD Collaboration, Kenji Abe

We have developed a new technique for inclusive reconstruction of the energy of B hadrons. The excellent efficiency and resolution of this technique allow us to make the most preci…

hep-ex1999★ 78 cited

The Isolated Photon Cross Section in p pbar Collisions at sqrt(s) = 1.8 TeV

D0 Collaboration, B. Abbott

We report a new measurement of the cross section for the production of isolated photons, with transverse energies (ET) above 10 GeV and pseudorapidities |eta| < 2.5, in p pbar coll…

hep-ex1999★ 22 cited

A Measurement of the W to tau+nu Production Cross Section in p-pbar Collisions at sqrt(s) = 1.8 TeV

D0 Collaboration, B. Abbott

We report on a measurement of sigma(p-pbar to W+X) times B(W to tau+nu) in p-pbar collisions at sqrt(s) = 1.8 TeV at the Fermilab Tevatron. The measurement is based on an integrate…

hep-ex1999★ 22 cited

Limits on Anomalous WWgamma and WWZ Couplings from WW/WZ->enujj Production

D0 collaboration, B. Abbott, M. Abolins

Limits on anomalous WWgamma and WWZ couplings are presented from a study of WW/WZ->enujj events in ppbar collisions at sqrt{s}=1.8 TeV. Results from the analysis of data collected…

hep-ex1999★ 37 cited

Probing BFKL Dynamics in the Dijet Cross Section at Large Rapidity Intervals in ppbar Collisions at sqrt{s}=1800 and 630 GeV

D0 Collaboration, B. Abbott

Inclusive dijet production at large pseudorapidity intervals (delta_eta) between the two jets has been suggested as a regime for observing BFKL dynamics. We have measured the dijet…

hep-ex1999★ 12 cited

Limits on Quark Compositeness from High Energy Jets in PbarP Collisions at 1.8 TeV

D0 collaboration, B. Abbott

Events in PbarP collisions at sqrt(s)=1.8 TeV with total transverse energy exceeding 500 GeV are used to set limits on quark substructure. The data are consistent with next-to-lead…

hep-ex1999★ 30 cited

Search for Second Generation Leptoquark Pairs in pbar-p Collisions at sqrt(s) = 1.8 TeV

B. Abbott

We have searched for second generation leptoquark (LQ) pairs in the μμ+jets channel using 94+-5 pb^{-1} of pbar-p collider data collected by the D0 experiment at the Fermilab Tevat…

hep-ex1999★ 13 cited

Search for Charmless Hadronic Decays of B Mesons with the SLD Detector

SLD Collaboration

Based on a sample of approximately 500,000 hadronic Z0 decays accumulated between 1993 and 1998, the SLD experiment has set limits on 24 fully charged two-body and quasi two-body e…

hep-ex1999★ 41 cited

Differential Production Cross Section of Z Bosons as a Function of Transverse Momentum at sqrt{s}=1.8 TeV

D0 Collaboration

We present a measurement of the transverse momentum distribution of Z bosons produced in ppbar collisions at sqrt{s}=1.8 TeV using data collected by the D0 experiment at the Fermil…

hep-ex1999★ 32 cited

A Measurement of the W Boson Mass Using Electrons at Large Rapidities

D0 collaboration, B. Abbott

We report a measurement of the W boson mass based on an integrated luminosity of 82/pb from p-pbar collisions at sqrt(s) = 1.8 TeV recorded in 1994-1995 by the D0 detector at the F…

hep-ex1999★ 10 cited

Evidence of Color Coherence Effects in W+jets Events from ppbar Collisions at sqrt(s) = 1.8 TeV

D0 Collaboration, B. Abbott

We report the results of a study of color coherence effects in ppbar collisions based on data collected by the D0 detector during the 1994-1995 run of the Fermilab Tevatron Collide…

hep-ex1999★ 64 cited

A measurement of the W boson mass using large rapidity electrons

D0 collaboration, B. Abbott

We present a measurement of the W boson mass using data collected by the D0 experiment at the Fermilab Tevatron during 1994--1995. We identify W bosons by their decays to e-nu fina…

hep-ex1999★ 69 cited

Measurement of the inclusive differential cross section for Z bosons as a function of transverse momentum in pbarp collisions at sqrt{s}=1.8 TeV

D0 Collaboration

We present a measurement of the differential cross section as a function of transverse momentum of the Z boson in ppbar collisions at sqrt{s}=1.8 TeV using data collected by the D0…

hep-ex1999★ 23 cited

Study of the radiative decay with CMD-2 detector

CMD2 Collaboration

Using the of data collected with the CMD-2 detector at VEPP-2M the decay mode , has been studied. The obtained branching ratio is B($ϕ\to ηγ…

hep-ex1999★ 42 cited

Small Angle Muon and Bottom Quark Production in pbarp Collisions at sqrt(s) = 1.8 TeV

D0 collaboration, B. Abbott

This Letter describes a measurement of the muon cross section originating from b quark decay in the forward rapidity range 2.4 < y(mu) < 3.2 in pbarp collisions at sqrt(s) = 1.8 Te…

hep-ex1999★ 29 cited

Search for R-parity Violating Supersymmetry in the Dielectron Channel

D0 collaboration, B. Abbott

We report on a search for R-parity violating supersymmetry in p-pbar collisions at sqrt(s) = 1.8 TeV using the D0 detector at Fermilab. Events with at least two electrons and four…

hep-ex1999★ 107 cited

Extraction of the Width of the W Boson from Measurements of sigma(ppbar->W+X)B(W->e nu) and sigma(ppbar->Z+X)B(Z->e e) and their Ratio

D0 Collaboration

We report on measurements of inclusive cross sections times branching fractions into electrons for W and Z bosons produced in ppbar collisions at sqrts=1.8 TeV.From an integrated l…

hep-ex1999★ 124 cited

The b-bbar Production Cross Section and Angular Correlations in p-pbar Collisions at sqrt(s) = 1.8 TeV

D0 Collaboration, B. Abbott

We present measurements of the b-bbar production cross section and angular correlations using the D0 detector at the Fermilab Tevatron p-pbar Collider operating at sqrt(s) = 1.8 Te…

hep-ex1999★ 15 cited

Search for Second Generation Leptoquark Pairs Decaying to μν+ jets in p-pbar Collisions at sqrt{s} = 1.8 TeV

D0 Collaboration, B. Abbott et al

We report on a search for second generation leptoquarks (LQ) produced in collisions at sqrt{s} = 1.8 TeV using the D0 detector at Fermilab. Second generation leptoquarks…

hep-ex1999★ 111 cited

Search for proton decay through p->\barν K^+ in a large water Cherenkov detector

Kamiokande Collaboration, Y. Hayato, M. Earl

We present results of a search for proton decays, , using data from a 33 ktonyear exposure of the Super-Kamiokande detector. Two decay modes of the kaon, $K…

hep-ex1999★ 26 cited

Search for bottom squarks in pbarp collisions at sqrt(s)=1.8 TeV

B. Abbott

We report on a search for bottom squarks produced in pbarp collisions at sqrt(s) = 1.8 TeV using the D0 detector at Fermilab. Bottom squarks are assumed to be produced in pairs and…

hep-ex1999★ 37 cited

Measurement of radon concentrations at Super-Kamiokande

Kamiokade Collaboration, Y. Takeuchi et al

Radioactivity from radon is a major background for observing solar neutrinos at Super-Kamiokande. In this paper, we describe the measurement of radon concentrations at Super-Kamiok…

hep-ex1999★ 43 cited

Tests of the Equivalence Principle with Neutral Kaons

CPLEAR Collaboration, J. Ellis, N. E. Mavromatos +1

We test the Principle of Equivalence for particles and antiparticles, using CPLEAR data on tagged K0 and K0bar decays into pi^+ pi^-. For the first time, we search for possible ann…