Showing 2000 · hep-exShow all

20 papers · 2 filters

hep-ex2000

Measurement of sin2phi_1 at Belle

Jorge L. Rodriguez

With 6.2 fb^-1 of data collected on the Upsilon(4S), Belle reports its first measurement of sin 2ϕ_1 = 0.45^{+0.43}_{-0.44}(stat)^{+0.07}_{-0.09}(sys). The result was obtained by f…

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★ 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★ 7 cited

First Measurement of the Branching Fraction of the Decay psi(2S) --> tau tau

J. Z. Bai

The branching fraction of the psi(2S) decay into tau pair has been measured for the first time using the BES detector at the Beijing Electron-Positron Collider. The result is $B_{τ…

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★ 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★ 696 cited

Tau Neutrinos Favored over Sterile Neutrinos in Atmospheric Muon Neutrino Oscillations

Kamiokande Collaboration

The previously published atmospheric neutrino data did not distinguish whether muon neutrinos were oscillating into tau neutrinos or sterile neutrinos, as both hypotheses fit the d…

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★ 14 cited

Measurement of decays to baryon pairs

J. Z. Bai

A sample of 3.95M decays registered in the BES detector are used to study final states containing pairs of octet and decuplet baryons. We report branching fractions for $ψ(…

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★ 23 cited

A Search for

T. E. Browder, CLEO Collaboration

We report results of a search for in a sample of 9.7 million charged meson decays. The search uses both and decay modes of the , and demands exclu…

hep-ex2000★ 24 cited

Search for Decays of B^{0} Mesons into Pairs of Leptons: B{0} -> e^{+}e^{-}, B^{0} -> μ^{+}μ^{-} and B^{0} -> e^{\pm}μ^{\mp}

T. Bergfeld, CLEO Collaboration

We search for the decays of the meson into , pairs in a sample of pairs recorded by CLEO detector. No signal is…

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★ 42 cited

16-N as a calibration source for Super-Kamiokande

Kamiokande Collaboration, E. Blaufuss, G. Guillian

The decay of 16-N is used to cross check the absolute energy scale calibration for solar neutrinos established by the electron linear accelerator (LINAC). A deuterium-tritium neutr…

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…