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Volume 345 - International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions (HardProbes2018) - Heavy Flavours & Quarkonia
$B_s$ and $B^+$ meson nuclear modification factors in PbPb collisions at 5.02 TeV with the CMS detector
G. Falmagne
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Pre-published on: 2019 January 11
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Beauty quark production in heavy-ion collisions is considered to be one of the key measurements to address the flavour-dependence of in-medium energy loss in heavy-ion collisions. On the other hand, the measurement of the production of strange beauty mesons can provide fundamental insights into the relevance of mechanisms of beauty recombination in the quark-gluon plasma. In this talk, CMS results on the nuclear modification factor, $R_{AA}$, of fully reconstructed $\mathrm{B}_{s}$ and $\mathrm{B}^{+}$ mesons as a function of transverse momentum at $\sqrt{s_{NN}}=$ 5.02 TeV in PbPb collisions will be presented for the first time. The $R_{AA}$ double ratio between $\mathrm{B}_{s}$ and $\mathrm{B}^{+}$ will also be presented.
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