Search results for "AU COLLISIONS"

showing 2 items of 12 documents

Cross section for bb¯ production via dielectrons in d + Au collisions at √sNN = 200 GeV

2015

We report a measurement of e+e− pairs from semileptonic heavy-flavor decays in d + Au collisions at √sNN = 200 GeV. By exploring the mass and transverse-momentum dependence of the yield, the bottom decay contribution can be isolated from charm, and quantified by comparison to PYTHIA and MC@NLO simulations. The resulting bb¯-production cross section is σdAu bb¯ = 1.37 ± 0.28 (stat) ± 0.46 (syst) mb, which is equivalent to a nucleon-nucleon cross section of σ NN bb = 3.4 ± 0.8 (stat) ± 1.1 (syst) μb. peerReviewed

semileptonic heavy-flavor decaysHigh Energy Physics::Phenomenologyd+Au collisions at sNN=200 GeVHigh Energy Physics::ExperimentNuclear Experimentmeasurement of e+e- pairs
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Measurement of dielectron production in central Pb-Pb collisions at √sNN = 2.76 TeV

2019

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. The first measurement of dielectron (e + e −) production in central (0 – 10 %) Pb – Pb collisions at √sNN=2.76TeV at the LHC is presented. The dielectron invariant-mass spectrum is compared to the expected contributions from hadron decays in the invariant-mass range 0 < mee < 3.5 GeV / c2. The ratio of data and the cocktail of hadronic contributions without vacuum ρ0 is measured in the invariant-mass range 0.15 < mee < 0.7 GeV / c2, w…

virtual [photon]:Kjerne- og elementærpartikkelfysikk: 431 [VDP]heavy ion collisionsHadrondielectron productionhiukkasfysiikkaPP01 natural sciencesS-W INTERACTIONSthermalALICEPhysics::Atomic PhysicsNuclear ExperimentBrookhaven RHIC CollPhysicsAU COLLISIONSLarge Hadron Colliderphoton: virtual ; photon: direct production ; heavy ion: scattering ; hadron: decay ; Brookhaven RHIC Coll ; transverse momentum ; CERN LHC Coll ; thermal ; ALICE ; mesonVDP::Kjerne- og elementærpartikkelfysikk: 431DIRECT PHOTON PRODUCTIONddc::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]PRIRODNE ZNANOSTI. Fizika.:Nuclear and elementary particle physics: 431 [VDP]CERN LHC CollVDP::Nuclear and elementary particle physics: 431Transverse momentumNuclear and High Energy PhysicsRho mesondirect production [photon]MesonPAIR PRODUCTIONPhoton lepton & quark productiontransverse momentumFew-body systemsmesonNuclear physicsDIRECT PHOTON PRODUCTION; S-W INTERACTIONS; AU COLLISIONS; RHO-MESON; DIMUON PRODUCTION; PAIR PRODUCTION; PP; J/PSI; ENHANCEMENT; EMISSIONENHANCEMENTscattering [heavy ion]0103 physical sciencesRelativistic heavy-ion collisionsRHO-MESON010306 general physicsParticle & resonance productionNuclear Physicsta114010308 nuclear & particles physics:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]NATURAL SCIENCES. Physics.J/PSIPair productionDIMUON PRODUCTIONQuark–gluon plasmaHigh Energy Physics::ExperimentEMISSIONdecay [hadron]
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