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19912026
Showing 2000 · hep-exShow all

23 papers · 2 filters

hep-ex2000★ 45 cited

A Quasi-Model-Independent Search for New High p_T Physics at DZero

DZero Collaboration

We apply a quasi-model-independent strategy ("Sleuth") to search for new high p_T physics in approximately 100 pb^-1 of ppbar collisions at sqrt(s) = 1.8 TeV collected by the DZero…

hep-ex2000★ 56 cited

A Quasi-Model-Independent Search for New Physics at Large Transverse Momentum

DZero Collaboration

We apply a quasi-model-independent strategy ("Sleuth") to search for new high p_T physics in approximately 100 pb^-1 of ppbar collisions at sqrt(s) = 1.8 TeV collected by the DZero…

hep-ex2000★ 115 cited

The e p -> e' p eta reaction at and above the S11(1535) baryon resonance

The CLAS Collaboration, R. Thompson

New cross sections for the reaction e p -> ep eta are reported for total center of mass energy W = 1.5--1.86 GeV and invariant momentum transfer Q^2 = 0.25--1.5 GeV^2. This large k…

hep-ex2000★ 85 cited

Inclusive Jet Production in pbar p Collisions

D0 Collaboration, B. Abbott

We report a new measurement of the pseudorapidity (eta) and transverse-energy (Et) dependence of the inclusive jet production cross section in pbar b collisions at sqrt(s) = 1.8 Te…

hep-ex2000★ 31 cited

Differential cross section for W boson production as a function of transverse momentum in proton-antiproton collisions at 1.8 TeV

D0 collaboration, V. M. Abazov

We report a measurement of the differential cross section for W boson production as a function of its transverse momentum in proton-antiproton collisions at sqrt{s} = 1.8 TeV. The…

hep-ex2000★ 10 cited

Measurement of the Angular Distribution of Electrons from W->e nu Decays Observed in ppbar Collisions at sqrt(s)=1.8 TeV

D0 collaboration, B. Abbott

We present the first measurement of the electron angular distribution parameter alpha_2 in W to e nu events produced in proton-antiproton collisions as a function of the W boson tr…

hep-ex2000★ 31 cited

Low-background applications of MICROMEGAS detector technology

J. I. Collar, Y. Giomataris

The MICROMEGAS detector concept, generally optimized for use in accelerator experiments, displays a peculiar combination of features that can be advantageous in several astropartic…

hep-ex2000★ 15 cited

Ratios of Multijet Cross Sections in p-pbar Collisions at sqrt(s)=1.8 TeV

B. Abbott

We report on a study of the ratio of inclusive three-jet to inclusive two-jet production cross sections as a function of total transverse energy in p-pbar collisions at a center-of…

hep-ex2000★ 75 cited

Search for Large Extra Dimensions in Dielectron and Diphoton Production

D0 Collaboration

We report a search for effects of large extra spatial dimensions in ppbar collisions at a center-of-mass energy of 1.8 TeV with the DZero detector, using events containing a pair o…

hep-ex2000★ 72 cited

Cross Section for b Jet Production in pbar-p Collisions at sqrt(s) = 1.8 TeV

D0 collaboration, B. Abbott

Bottom quark production in pbar-p collisions at sqrt(s)=1.8 TeV is studied with 5 inverse picobarns of data collected in 1995 by the DO detector at the Fermilab Tevatron Collider.…

hep-ex2000★ 15 cited

The Ratio of Jet Cross Sections at s**(1/2)=630 GeV and 1800 GeV

D0 Collaboration

The DO Collaboration has measured the inclusive jet cross section in proton-antiproton collisions at s**2 = 630 GeV. The results for pseudorapidities -0.5 to 0.5 are combined with…

hep-ex2000★ 42 cited

Search for Electroweak Production of Single Top Quarks in ppbar Collisions

DZero Collaboration, B. Abbott

We present a search for electroweak production of single top quarks in the electron+jets and muon+jets decay channels. The measurements use ~90 pb^-1 of data from Run 1 of the Ferm…

hep-ex2000★ 70 cited

The first determination of Generalized Polarizabilities of the proton by a Virtual Compton Scattering experiment

The VCS, A1 collaboration

Absolute differential cross sections for the reaction (e+p -> e+p+gamma) have been measured at a four-momentum transfer with virtuality Q^2=0.33 GeV^2 and polarization ε= 0.62 in t…

hep-ex2000★ 6 cited

Measurement of the K_L -> e+ e- e+ e- Decay Rate

A. Lai

The decay rate of the neutral long-lived K meson into the e+ e- e+ e- final state has been measured with the NA48 detector at the CERN SPS. Using data collected in 1999, a total of…

hep-ex2000★ 524 cited

GNO Solar Neutrino Observations: Results for GNOI

GNO Collaboration, M. Altmann, M. Balata +28

We report the first GNO solar neutrino results for the measuring period GNOI, solar exposure time May 20, 1998 till January 12, 2000. In the present analysis, counting results for…

hep-ex2000★ 73 cited

Photoproduction of phi(1020) mesons on the proton at large momentum transfer

Te CLAS Collaboration, E. Anciant

The cross section for meson photoproduction on the proton has been measured for the first time up to a four-momentum transfer -t = 4 GeV^2, using the CLAS detector at the Thoma…

hep-ex2000★ 65 cited

Search for New Physics in e mu X Data at D0 Using Sleuth: A Quasi-Model-Independent Search Strategy for New Physics

D0 Collaboration

We present a quasi-model-independent search for the physics responsible for electroweak symmetry breaking. We define final states to be studied, and construct a rule that identifie…

hep-ex2000★ 11 cited

Search for R-parity Violation in Multilepton Final States in p-barp Collisions at sqrt{s}=1.8 TeV

The D0 Collaboration

The result of a search for gaugino pair production with a trilepton signature is reinterpreted in the framework of minimal supergravity (mSUGRA) with R-parity violation via leptoni…

hep-ex2000★ 70 cited

Measurement of elastic electroproduction of phi mesons at HERA

H1 Collaboration, C. Adloff

The elastic electroproduction of phi mesons is studied at HERA with the H1 detector for photon virtualities 1 < Q^2 < 15 GeV^2 and hadronic centre of mass energies 40 < W < 130 GeV…

hep-ex2000★ 46 cited

Search for Compositeness, Leptoquarks and Large Extra Dimensions in eq Contact Interactions at HERA

H1 Collaboration, C. Adloff

The reaction e+p --> e+X is studied with the H1 detector at Hera. The data cover momentum transfers Q^2 between 200 GeV^2 and 30,000 GeV^2 and correspond to an integrated luminosit…

hep-ex2000★ 188 cited

Elastic Photoproduction of J/psi and Upsilon Mesons at HERA

H1 Collaboration, C. Adloff

Cross sections for elastic photoproduction of J/Psi and Upsilon mesons are presented. For J/Psi mesons the dependence on the photon-proton centre-of-mass energy W_gammap is analyse…

hep-ex2000★ 28 cited

Measurement of Di-jet Cross-Sections in Photoproduction and Photon Structure

H1 Collaboration, C. Adloff

The production of hard di-jet events in photoproduction at HERA is dominated by resolved photon processes in which a parton in the photon with momentum fraction x_gamma is scattere…

hep-ex2000★ 46 cited

Spin Correlation in tt-bar Production from pp-bar Collisions at sqrt(s)=1.8 TeV

D0 Collaboration, B. Abbott

The D0 collaboration has performed a study of spin correlation in tt-bar production for the process tt-bar to bb-bar W^+W^-, where the W bosons decay to e-nu or mu-nu. A sample of…