Measurement of B${}_{\mathrm{s}}^0$ meson production in pp and PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV

Abstract

The production cross sections of B${}_{\mathrm{s}}^0$ mesons and charge conjugates are measured in proton-proton (pp) and PbPb collisions via the exclusive decay channel B${}_{\mathrm{s}}^0$ $\to$ ${\mu }^{+}{\mu }^{-}$K${}^{+}$K${}^{-}$ at a centre-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 (p${}_{\mathrm{T}}$) of the B${}_{\mathrm{s}}^0$ meson in the range of 7 to 50 GeV/$c$ and is compared to the predictions of perturbative QCD calculations. The B${}_{\mathrm{s}}^0$ production yield in PbPb collisions is measured in two p${}_{\mathrm{T}}$ 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 ($R_{\mathrm{AA}}$) is found to be 1.5 $\pm$ 0.6 (stat) $\pm$ 0.5 (syst) for 7-15 GeV/$c$, and 0.87 $\pm$ 0.30 (stat) $\pm$ 0.17 (syst) for 15-50 GeV/$c$, respectively. Within current uncertainties, the results are consistent with models of strangeness enhancement and a suppression as observed for the B${}^{+}$ mesons.

arXiv commentReplaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIN-17-008 (CMS Public Pages)

References in corpus (42)

• An Introduction to PYTHIA 8.2
• Glauber Modeling in High Energy Nuclear Collisions
• TMVA - Toolkit for Multivariate Data Analysis
• The p_T Spectrum in Heavy-Flavour Hadroproduction
• Description and performance of track and primary-vertex reconstruction with the CMS tracker
• Observation of a Centrality-Dependent Dijet Asymmetry in Lead-Lead Collisions at sqrt(S(NN))= 2.76 TeV with the ATLAS Detector at the LHC
• Observation and studies of jet quenching in PbPb collisions at nucleon-nucleon center-of-mass energy = 2.76 TeV
• Enhanced production of multi-strange hadrons in high-multiplicity proton-proton collisions
• Event generator tunes obtained from underlying event and multiparton scattering measurements
• Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV
• Theoretical predictions for charm and bottom production at the LHC
• Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions
• Energy loss in perturbative QCD
• Elliptic flow at large transverse momenta from quark coalescence
• Parton coalescence at RHIC
• A model of jet quenching in ultrarelativistic heavy ion collisions and high-pt hadron spectra at RHIC
• Quark Coalescence for Charmed Mesons in Ultrarelativistic Heavy-Ion Collisions
• K${}_{\mathrm{S}}^0$ and $\mathrm{\Lambda }$ production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Transverse momentum and pseudorapidity distributions of charged hadrons in pp collisions at sqrt(s) = 0.9 and 2.36 TeV
• Measurements of Inclusive W and Z Cross Sections in pp Collisions at sqrt(s)=7 TeV
• Multi-strange baryon production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Charged-particle nuclear modification factors in PbPb and pPb collisions at sqrt(s[NN]) = 5.02 TeV
• Heavy-Quark Diffusion and Hadronization in Quark-Gluon Plasma
• Heavy Flavor at the Large Hadron Collider in a Strong Coupling Approach
• Multi-Strange Baryon Production in Au-Au collisions at sqrt(s_NN) = 130 GeV
• Collision Energy Dependence of Moments of Net-Kaon Multiplicity Distributions at RHIC
• Strangeness Enhancement in Cu+Cu and Au+Au Collisions at \sqrt{s_{NN}} = 200 GeV
• Bridging Soft-Hard Transport Properties of Quark-Gluon Plasmas with CUJET3.0
• Search for the ${\Lambda }_b\to \Lambda {\eta }^{\prime }$ and ${\Lambda }_b\to \Lambda \eta$ decays with the LHCb detector
• Strange and Multi-strange Particle Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 62.4 GeV
• Charm Cross Sections for the Tevatron Run II
• Measurement of D${}^0$, D${}^{+}$, D${}^{\ast +}$ and D${}_{\mathrm{s}}^{+}$ production in Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}=5.02$ TeV
• Measurement of the B+/- meson nuclear modification factor in PbPb collisions at sqrt(s[NN]) = 5.02 TeV
• Energy and system size dependence of ϕmeson production in Cu+Cu and Au+Au collisions
• Consistency of Perfect Fluidity and Jet Quenching in semi-Quark-Gluon Monopole Plasmas
• Kaon Production and Kaon to Pion Ratio in Au+Au Collisions at $\snn=130$ GeV
• Azimuthal jet flavor tomography with CUJET2.0 of nuclear collisions at RHIC and LHC
• Measurement of the Strange B Meson Production Cross Section with J/Psi phi Decays in pp Collisions at sqrt(s) = 7 TeV
• Measurement of D${}_s^{+}$ production and nuclear modification factor in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Study of B meson production in pPb collisions at sqrt(s_NN) = 5.02 TeV using exclusive hadronic decays
• Kaon and Pion Production in Central Au+Au Collisions at \sqrt{s_{NN}}=62.4 GeV
• $\varphi$ meson production in the forward/backward rapidity region in Cu$+$Au collisions at $\sqrt{s_{NN}}=200$ GeV

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