Studies of Beauty Suppression Via Nonprompt D0 Mesons in Pb-Pb Collisions at Snn =5.02 Tev
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Open Access Color
HYBRID
Green Open Access
Yes
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60
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58
Publicly Funded
Yes
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Top 10%
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Top 10%
Abstract
The transverse momentum spectra of D0 mesons from b hadron decays are measured at midrapidity (|y|<1) in pp and Pb-Pb collisions at a nucleon-nucleon center of mass energy of 5.02 TeV with the CMS detector at the LHC. The D0 mesons from b hadron decays are distinguished from prompt D0 mesons by their decay topologies. In Pb-Pb collisions, the B?D0 yield is found to be suppressed in the measured pT range from 2 to 100 GeV/c as compared to pp collisions. The suppression is weaker than that of prompt D0 mesons and charged hadrons for pT around 10 GeV/c. While theoretical calculations incorporating partonic energy loss in the quark-gluon plasma can successfully describe the measured B?D0 suppression at higher pT, the data show an indication of larger suppression than the model predictions in the range of 2<pT<5 GeV/c. © 2019 CERN.
Description
Keywords
550, Muon, LHC; CMS; Physics, nucl-ex, High Energy Physics - Experiment, QUARK-GLUON PLASMA, Hadron-Hadron scattering (experiments), Physical Sciences and Mathematics, hardware, Particle Physics Experiments, Modular electronics, PERSPECTIVE, Nuclear Experiment, Fisica delle particelle. Particle Physics., [Anahtar Kelime Yok], Data, 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, Multidisciplinary, 02 Physical Sciences, CMS, Physics, Lepton production, Beyond two generations, quark gluon plasma, Physical Sciences, Physique des particules élémentaires, Centre for High Energy Physics, PARTICLE PHYSICS, LHC, databases), General Physics, architecture, Physics, Multidisciplinary, Particle Physics; LHC; Pb-Pb collisions; Beauty Suppression; CMS, Fizik, algorithms, 530, LARGE TRANSVERSE-MOMENTA, Excited top quark, Optical detector readout concepts, High energy physics, ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика, Physics, LHC, CMS, Science & Technology, PARTICLE PHYSICS;LARGE HADRON COLLIDER;CMS, hep-ex, Detector control systems (detector and experiment monitoring and slow-control systems, Data acquisition concepts, Física, LARGE HADRON COLLIDER, ionic collision, LARGE TRANSVERSE-MOMENTA; QUARK-GLUON PLASMA; PERSPECTIVE; MATTER, Hadron, Beyond Standard Model, Supersymmetry, Experimental particle physics, MATTER, 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
Scopus Q
Q1
Source
Physical Review Letters
Volume
123
Issue
2
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