Volume 340 - The 39th International Conference on High Energy Physics (ICHEP2018) - Parallel: Heavy Ions
Measurements of strange and non strange beauty production in PbPb collisions at 5.02 TeV with the CMS detector
H. Qiu* on behalf of the CMS collaboration
*corresponding author
Full text: pdf
Published on: August 02, 2019
Abstract
Production yields of strange and non strange beauty particles are measured by the CMS collaboration in proton-proton and PbPb collisions at 5.02 TeV. Consistent suppression of $B^{+}$, nonprompt $J/\psi$ (coming from decays of b hadrons) and nonprompt $D^0$ is observed in PbPb collisions compared to proton-proton collisions. Beauty particles seem to be less suppressed than charm and light flavor particles at transverse momentum around 10 GeV/c, which is in line with expectation from mass ordering of parton energy loss. We also report the first measurement of $B_{s}^{0}$ yield in heavy ion collisions. There is an indication of less suppression of $B_{s}^{0}$ comparing to $B^{+}$, which is consistent with the strangeness enhancement in quark-gluon plasma and the recombination production mechanism of $B_{s}^{0}$.
DOI: https://doi.org/10.22323/1.340.0095
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