Studies of Strange and Non-Strange Beauty Productions in PbPb Collisions with the CMS Detector

Abstract

Beauty quarks are considered as one of the best probes of the strongly interacting medium created in relativistic heavy-ion collisions because they are predominantly produced via initial hard scatterings. Our measurements of B mesons productions provide information on the diffusion of beauty quarks and the flavor dependence of in-medium energy loss. In these studies, clarifying the hadronization mechanism is crucial for understanding the transport properties of beauty quarks. We propose to show our experimental results on three sets of particles: nonprompt $J/\psi$ and $D^0$, $B_s^0$ and $B^{+}$, and prompt $D_s^{+}$ and $D^0$. Our measurements of $B_s^0$ production can shed light on the mechanisms of beauty recombination in the medium. In addition, the measurements of mesons productions containing both strange and beauty quarks can provide more information about strangeness enhancement in the quark-gluon plasma. The ratio of $B_s^0$ over $B^{+}$ nuclear modification factors at a nucleon-nucleon center-of-mass energy of 5.02 TeV, using fully reconstructed B mesons with the CMS detector, are presented. We will also show the nonprompt $J/\psi$ and $D^0$ from the partial B mesons decay chains as well as our precise measurement the prompt $D_s^{+}$ to $D^0$ ratio in pp and PbPb collisions.

arXiv commentSubmitted for Publication in Quark Matter 2019 Conference Proceedings, Nuclear Physics A

References in corpus (19)

• An Introduction to PYTHIA 8.2
• Heavy quark colorimetry of QCD matter
• Extraction of Heavy-Flavor Transport Coefficients in QCD Matter
• Heavy Flavor at the Large Hadron Collider in a Strong Coupling Approach
• Nuclear modification factor of D${}^0$ mesons in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Tomography of the Quark-Gluon-Plasma by Charm Quarks
• Open Heavy Flavor in QCD Matter and in Nuclear Collisions
• Charm production in Pb+Pb collisions at the Large Hadron Collider energy
• Heavy baryon/meson ratios in relativistic heavy ion collisions
• Charm-Baryon Production in Proton-Proton Collisions
• Measurement of prompt and nonprompt charmonium suppression in PbPb collisions at 5.02 TeV
• Bridging Soft-Hard Transport Properties of Quark-Gluon Plasmas with CUJET3.0
• Measurement of the B+/- meson nuclear modification factor in PbPb collisions at sqrt(s[NN]) = 5.02 TeV
• Studies of beauty suppression via nonprompt D${}^0$ mesons in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Fluctuating Heavy Quark Energy Loss in Strongly-Coupled Quark-Gluon Plasma
• Collisional energy loss of heavy quarks
• Measurement of B${}_{\mathrm{s}}^0$ meson production in pp and PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Mass tomography at different momentum ranges in quark-gluon plasma
• Gluon radiation by heavy quarks at intermediate energies and consequences for the mass hierarchy of energy loss