5-11 February 2017
Hyatt Regency Chicago
America/Chicago timezone

Open beauty production and modifications in PbPb collisions at 5.02 TeV with CMS

8 Feb 2017, 16:50
Regency D

Regency D


Ta-Wei Wang (Massachusetts Inst. of Technology (US))


Beauty production and phenomena in heavy-ion collisions are considered to be one of the key measurements to address the flavour-dependence of in-medium energy loss in PbPb collisions at the LHC. The CMS experiment has excellent capabilities for measuring b-quark production thanks to the excellent performances of its muon and tracker system, allowing the measurement of $D^{0}$ and J/$\Psi$ mesons from B meson decays, separately from prompt production, as well as fully reconstructed B mesons. In this talk, CMS will present the first measurement of the $v_{2}$ Fourier harmonic and the $R_{AA}$ down to $p_{T} > 3$ GeV/c, for J/$\Psi$ produced in B meson decays, in PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV, as a function of transverse momentum, rapidity and event centrality. New measurements of the $R_{AA}$ of non-prompt J/$\Psi$ and $D^{0}$ from $B$ decay in PbPb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV will also be reported. Finally, the measurement of $R_{AA}$ for fully reconstructed B mesons will be shown, for the first time, in PbPb collisions at 5.02 TeV. The results are compared to various model calculations.

Collaboration CMS
Preferred Track Open Heavy Flavors

Primary author

Ta-Wei Wang (Massachusetts Inst. of Technology (US))

Presentation materials