Showing 2001 · hep-exShow all

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hep-ex2001

Elastic Vector Meson Production at HERA

B. Mellado

The H1 and ZEUS Collaborations report new results on elastic VM cross-section and trajectory determination. Elastic VM production appears to be independent of the photon polarizati…

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★ 607 cited

A Precise Determination of Electroweak Parameters in Neutrino-Nucleon Scattering

NuTeV Collaboration, G. P. Zeller, K. S. McFarland +43

The NuTeV collaboration has extracted sin^2theta_W from the ratios of neutral current to charged current neutrino and anti-neutrino cross-sections. Our value, sin^2theta_W(on-shell…

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★ 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★ 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★ 38 cited

Hadron Energy Reconstruction for the ATLAS Calorimetry in the Framework of the Non-parametrical Method

ATLAS Collaboration

This paper discusses hadron energy reconstruction for the ATLAS barrel prototype combined calorimeter (consisting of a lead-liquid argon electromagnetic part and an iron-scintillat…

hep-ex2001★ 31 cited

Observation of an Anomalous Number of Dimuon Events in a High Energy Neutrino Beam

NuTeV Collaboration, T. Adams, A. Alton +43

A search for long-lived neutral particles (N^0's) with masses above 2.2 GeV/c^2 that decay into at least one muon has been performed using an instrumented decay channel at the NuTe…

hep-ex2001★ 8 cited

Search for the Lepton Number Violating Process nu_mu-bar e^- -> mu^- nu_e-bar

NuTeV Collaboration, J. A. Formaggio, J. Yu

The NuTeV experiment at Fermilab has used a sign-selected neutrino beam to perform a search for the lepton number violating process nu_mu-bar e^- -> mu^- nu_e-bar, and to measure t…

hep-ex2001★ 28 cited

Extraction of R = sigma_L/sigma_T from CCFR nu_mu-Fe and nubar_mu-Fe differential cross sections

U. K. Yang, T. Adams, A. Alton +7

We report on the extraction of R=sigma_L/sigma_T from CCFR nu_mu-Fe and nubar_mu-Fe differential cross sections. The CCFR differential cross sections do not show the deviations fro…

hep-ex2001★ 30 cited

Search for heavy particles decaying into electron-positron pairs in p-pbar collisions

D0 Collaboration, V. M. Abazov

We present results of searches for technirho, techniomega, and Z' particles, using the decay channels technirho, techniomega, Z' -> e+e-. The search is based on 124.8 pb-1 of data…

hep-ex2001★ 259 cited

Precise Measurement of Dimuon Production Cross-Sections in muon neutrino Fe and muon antineutrino Fe Deep Inelastic Scattering at the Tevatron

NuTeV Collaboration, M. Goncharov, P. Spentzouris

We present measurements of the semi-inclusive cross-sections for muon neutrino and muon antineutrino-nucleon deep inelastic scattering interactions with two oppositely charged muon…

hep-ex2001★ 50 cited

Direct Search for Charged Higgs Bosons in Decays of Top Quarks

D0 Collaboration, V. M. Abazov

We present a search for charged Higgs bosons in decays of pair-produced top quarks in pbar p collisions at sqrt(s) = 1.8 TeV using 62.2 pb^-1 of data recorded by the D0 detector at…

hep-ex2001★ 75 cited

High-p_T Jets in pbarp Collisions at sqrt{s} = 630 and 1800 GeV

D0 collaboration, B. Abbott

Results are presented from analyses of jet data produced in pbarp collisions at sqrt{s} = 630 and 1800 GeV collected with the DO detector during the 1994-95 Fermilab Tevatron Colli…