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19912026
Showing 1998 · hep-exShow all

33 papers · 2 filters

hep-ex1998★ 84 cited

Limits on dark matter WIMPs using upward-going muons in the MACRO detector

The MACRO Collaboration, M. Ambrosio et al

We perform an indirect search for Weakly Interacting Massive Particles (WIMPs) using the MACRO detector to look for neutrino-induced upward-going muons resulting from the annihilat…

hep-ex1998★ 356 cited

Measurement of the solar neutrino energy spectrum using neutrino-electron scattering

Kamiokande collaboration

A measurement of the energy spectrum of recoil electrons from solar neutrino scattering in the Super--Kamiokande detector is presented. The results shown here are obtained from 504…

hep-ex1998★ 67 cited

Measurement of the High-Mass Drell-Yan Cross Section and Limits on Quark-Electron Compositeness Scales

B. Abbott

We present a measurement of the Drell-Yan cross section at high dielectron invariant mass using 120/pb of data collected in pbar-p collisions at sqrt(s) = 1.8 TeV by the D0 collabo…

hep-ex1998★ 378 cited

Constraints on neutrino oscillation parameters from the measurement of day-night solar neutrino fluxes at Super-Kamiokande

Kamiokande Collaboration, Y. Fukuda, T. Hayakawa +2

A search for day-night variations in the solar neutrino flux resulting from neutrino oscillations has been carried out using the 504 day sample of solar neutrino data obtained at S…

hep-ex1998★ 581 cited

Measurement of the flux and zenith-angle distribution of upward through-going muons by Super-Kamiokande

Kamiokande Collaboration

A total of 614 upward through-going muons of minimum energy 1.6 GeV are observed by Super-Kamiokande during 537 detector live days. The measured muon flux is 1.74+/-0.07(stat.)+/-0…

hep-ex1998★ 30 cited

Search for High Mass Photon Pairs in p-pbar --> gamma-gamma-jet-jet Events at sqrt(s)=1.8 TeV

D0 Collaboration, B. Abbott

A search has been carried out for events in the channel p-barp --> gamma gamma jet jet. Such a signature can characterize the production of a non-standard Higgs boson together with…

hep-ex1998★ 40 cited

Measurement of the Top Quark Pair Production Cross Section in pbar-p Collisions Using Multijet Final States

B. Abbott

We have studied tbar-t production using multijet final states in pbar-p collisions at a center-of-mass energy of 1.8 TeV, with an integrated luminosity of 110.3 pb(-1). Each of the…

hep-ex1998★ 5.1k cited

Evidence for oscillation of atmospheric neutrinos

Kamiokande Collaboration, Y. Fukuda et al

We present an analysis of atmospheric neutrino data from a 33.0 kiloton-year (535-day) exposure of the Super-Kamiokande detector. The data exhibit a zenith angle dependent deficit…

hep-ex1998★ 98 cited

Measurement of the Top Quark Mass in the Dilepton Channel

B. Abbott

We report a measurement of the top quark mass using six candidate events for the process pbarp->ttbar->l^+ nu l^- nubar b bbar + X, observed in the D0 experiment at the Fermilab pp…

hep-ex1998★ 19 cited

Search for Squarks and Gluinos in Single-Photon Events with Jets and Large Missing Transverse Energy in ppbar Collisions at SQRT(S)=1.8 TeV

B. Abbott

We search for physics beyond the standard model using events with a photon, two or more hadronic jets, and an apparent imbalance in transverse energy, in collisions at t…

hep-ex1998★ 42 cited

The Observation of Up-going Charged Particles Produced by High Energy Muons in Underground Detectors

The MACRO Collaboration, M. Ambrosio et al

An experimental study of the production of up-going charged particles in inelastic interactions of down-going underground muons is reported, using data obtained from the MACRO dete…

hep-ex1998★ 43 cited

Small Angle J/Psi Production in ppbar Collisions at sqrt(s)=1.8TeV

B. Abbott

This paper presents the first measurement of the inclusive J/Psi production cross section in the forward pseudorapidity region 2.5<|eta|<3.7 in ppbar collisions at sqrt(s)=1.8TeV.…

hep-ex1998★ 116 cited

Calibration of Super-Kamiokande Using an Electron Linac

Kamiokande Collaboration

In order to calibrate the Super-Kamiokande experiment for solar neutrino measurements, a linear accelerator (LINAC) for electrons was installed at the detector. LINAC data were tak…

hep-ex1998★ 65 cited

The Dijet Mass Spectrum and a Search for Quark Compositeness in bar{p}p Collisions at sqrt{s} = 1.8 TeV

D0 Collaboration, B. Abbott

Using the DZero detector at the 1.8 TeV pbarp Fermilab Tevatron collider, we have measured the inclusive dijet mass spectrum in the central pseudorapidity region |eta_jet| < 1.0 fo…

hep-ex1998★ 64 cited

The Inclusive Jet Cross Section in pbar-p Collisions at sqrt(s) = 1.8 TeV

D0 Collaboration, B. Abbott

We have made a precise measurement of the central inclusive jet cross section at sqrt(s) = 1.8 TeV. The measurement is based on an integrated luminosity of 92 pb-1 collected at the…

hep-ex1998★ 32 cited

Measurement of the energy spectrum of underground muons at Gran Sasso with a transition radiation detector

The MACRO Collaboration, M. Ambrosio et al

We have measured directly the residual energy of cosmic ray muons crossing the MACRO detector at the Gran Sasso Laboratory. For this measurement we have used a transition radiation…

hep-ex1998★ 23 cited

Observation of the Shadowing of Cosmic Rays by the Moon using a Deep Underground Detector

The MACRO Collaboration, M. Ambrosio et al

Using data collected by the MACRO experiment during the years 1989-1996, we show evidence for the shadow of the moon in the underground cosmic ray flux with a significance of 3.6 s…

hep-ex1998★ 364 cited

Measurement of the atmospheric neutrino-induced upgoing muon flux using MACRO

The MACRO Collaboration, M. Ambrosio et al

We present a measurement of the flux of neutrino-induced upgoing muons (<E_nu>~100 GeV) using the MACRO detector. The ratio of the number of observed to expected events integrated…

hep-ex1998★ 152 cited

Search for Proton Decay via p -> e+ pi0 in a Large Water Cherenkov Detector

Kamiokande Collaboration, M. Shiozawa

We have searched for proton decay via p -> e+ pi0 using data from a 25.5 kton-year exposure of the Super-Kamiokande detector. We find no candidate events with an expected backgroun…

hep-ex1998★ 120 cited

Production of pi+, K+, K0, K*0, phi, p and Lambda-0 in Hadronic Z0 Decays

The SLD Collaboration, K. Abe

We have measured the differential production cross sections as a function of scaled momentum x_p=2p/E_cm of the identified hadron species pi+, K+, K0, K*0, phi, p, Lambda0, and of…

hep-ex1998★ 17 cited

An Improved Test of the Flavor Independence of Strong Interactions

K. Abe et al

We present an improved comparison of the strong coupling of the gluon to light (q_l=u+d+s), c, and b quarks, determined from multijet rates in flavor-tagged samples of hadronic Z0…

hep-ex1998★ 68 cited

Determination of the Absolute Jet Energy Scale in the DZERO Calorimeters

B. Abbott

The DZERO detector is used to study proton-antiproton collisions at the 1800 GeV and 630 GeV center-of-mass energies available at the Fermilab Tevatron. To measure jets, the detect…

hep-ex1998★ 770 cited

Measurements of the Solar Neutrino Flux from Super-Kamiokande's First 300 Days

Kamiokande Collaboration, Y. Fukuda et al

The first results of the solar neutrino flux measurement from Super-Kamiokande are presented. The results shown here are obtained from data taken between the 31st of May, 1996, and…

hep-ex1998★ 466 cited

Study of the atmospheric neutrino flux in the multi-GeV energy range

Kamiokande Collaboration, Y. Fukuda et al

The flavor ratio of the atmospheric neutrino flux and its zenith angle dependence have been studied in the multi-GeV energy range using an exposure of 25.5 kiloton-years of the Sup…