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19922026
Showing 2000 · hep-exShow all

19 papers · 2 filters

hep-ex2000★ 14 cited

A Measurement of the Branching Ratio and Asymmetry of the Decay Cascade^0-->Sigma^0/gamma

A. Alavi-Harti

We have studied the rare weak radiative hyperon decay Cascade0-->Sigma0/gamma in the KTeV experiment at Fermilab. We have identified 4045 signal events over a background of 804 eve…

hep-ex2000★ 8 cited

First Observation of the decay KL -> pi0 e e gamma

The KTeV Collaboration

We report on the first observation of the decay KL -> pi0 ee gamma by the KTeV E799 experiment at Fermilab. Based upon a sample of 48 events with an estimated background of 3.6 +/-…

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★ 26 cited

Search for the Decay Kl -> pi0 e+ e-

A. Alavi-Harati

We report on a search for the decay Kl -> pi0 e+ e- carried out by the KTeV/E799 experiment at Fermilab. This decay is expected to have a significant CP violating contribution and…

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★ 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★ 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…

hep-ex2000★ 7 cited

Observation of the Decay

A. Alavi-Harati

We have observed the decay at the KTeV experiment at Fermilab. This decay presents a formidable background to the search for new physics in . Th…