Measurement of Bs0 meson production in pp and PbPb collisions at SNN=√5.02 TeV
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Date
2019
Authors
Karapınar, Güler
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier B.V.
Open Access Color
GOLD
Green Open Access
Yes
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263
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55
Publicly Funded
Yes
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Top 10%
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Abstract
The production cross sections of Bs 0 mesons and charge conjugates are measured in proton-proton (pp) and PbPb collisions via the exclusive decay channel Bs 0→J/ψϕ→μ+μ−K+K− at a center-of-mass energy of 5.02 TeV per nucleon pair and within the rapidity range |y|<2.4 using the CMS detector at the LHC. The pp measurement is performed as a function of transverse momentum (pT) of the Bs 0 mesons in the range of 7 to 50 GeV/c and is compared to the predictions of perturbative QCD calculations. The Bs 0 production yield in PbPb collisions is measured in two pT intervals, 7 to 15 and 15 to 50 GeV/c, and compared to the yield in pp collisions in the same kinematic region. The nuclear modification factor (RAA) is found to be 1.5±0.6(stat)±0.5(syst) for 7–15 GeV/c, and 0.87±0.30(stat)±0.17(syst) for 15–50 GeV/c, respectively. Within current uncertainties, the Bs 0 results are consistent with models of strangeness enhancement, and suppression by parton energy loss, as observed for the B+ mesons. © 2019
Description
Keywords
B meson, Open heavy-flavor, Physics, Quark gluon plasma, B meson; Open heavy-flavor; Physics; Quark gluon plasma, optical detector readout concepts, KAON, B meson, nucl-ex, High Energy Physics - Experiment, Physics, Particles & Fields, high energy physics, high energy physics ; experimental particle physics ; LHC ; CMS ; physics ; beyond two generations ; excited top quark ; hadron-hadron scattering (experiments) ; supersymmetry ; beyond standard model ; lepton production ; data acquisition concepts ; detector control systems (detector and experiment monitoring and slow-control systems, architecture, hardware, algorithms, databases) ; modular electronics ; optical detector readout concepts ; particle physics experiments ; data ; Higgs ; muon, ENERGY, Particle and Plasma Physics, DEPENDENCE, Physic, hardware, info:eu-repo/classification/ddc/530, Nuclear Experiment, 0105 Mathematical Physics, CMS, Physics, ddc:530, B Meson, B meson, Open heavy-flavor, Physics, Quark gluon plasma, hadron-hadron scattering (experiments), 320, Nuclear & Particles Physics, Physics, Nuclear, Top physics, data, Physical Sciences, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, modular electronics, Physique des particules élémentaires, Centre for High Energy Physics, detector control systems (detector and experiment monitoring and slow-control systems, PARTICLE PHYSICS, LHC, databases), physics, beyond standard model, Open Heavy-Flavor, architecture, QC1-999, Particles & Fields, Astronomy & Astrophysics, Quark gluon plasma, algorithms, 530, lepton production, beyond two generations, muon, 0201 Astronomical and Space Sciences, Nuclear, ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика, data acquisition concepts, experimental particle physics, Science & Technology, PARTICLE PHYSICS;LARGE HADRON COLLIDER;CMS, hep-ex, Molecular, Física, LARGE HADRON COLLIDER, 620, Open heavy-flavor, particle physics experiments, 0202 Atomic, Physics; Quark gluon plasma; B meson; Open heavy-flavor; ENERGY; DEPENDENCE; KAON, B meson; Open heavy-flavor; Physics; Quark gluon plasma;, Quark Gluon Plasma, excited top quark, supersymmetry, Higgs
Fields of Science
01 natural sciences, 06 humanities and the arts, 0103 physical sciences, 0105 earth and related environmental sciences, 0604 arts
Citation
WoS Q
Q1
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Q1
OpenCitations Citation Count
N/A
Source
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume
796
Issue
Start Page
168
End Page
190
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