Studies of Beauty Suppression via Nonprompt D0 Mesons in Pb-Pb Collisions at √s NN = 5.02 TeV

Please use this identifier to cite or link to this item: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3788

Title:	Studies of Beauty Suppression via Nonprompt D0 Mesons in Pb-Pb Collisions at √s NN = 5.02 TeV
Authors:	CMS Collaboration Sirunyan, A. M. CHAUHAN, S. DUBE, SOURABH HEGDE, V. KAPOOR, A. KOTHEKAR, K. PANDEY, S. RANE, A. SHARMA, SEEMA et al. Dept. of Physics
Keywords:	Large transverse-momenta Quark-gluon plasma Perspective Matter TOC-JUL-2019 2019
Issue Date:	Jul-2019
Publisher:	American Physical Society
Citation:	Physical Review Letters, 123(2).
Abstract:	The transverse momentum spectra of D0 mesons from b hadron decays are measured at midrapidity (jyj < 1) in pp and Pb-Pb collisions at a nucleon-nucleon center of mass energy of 5.02 TeV with the CMS detector at the LHC. The D0 mesons from b hadron decays are distinguished from prompt D0 mesons by their decay topologies. In Pb-Pb collisions, the B ? D0 yield is found to be suppressed in the measured pT range from 2 to 100 GeV=c as compared to pp collisions. The suppression is weaker than that of prompt D0 mesons and charged hadrons for pT around 10 GeV=c. While theoretical calculations incorporating partonic energy loss in the quark-gluon plasma can successfully describe the measured B ? D0 suppression at higher pT, the data show an indication of larger suppression than the model predictions in the range of 2 < pT < 5 GeV=c.
URI:	http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3788 https://doi.org/10.1103/PhysRevLett.123.022001
ISSN:	0031-9007 1079-7114
Appears in Collections:	JOURNAL ARTICLES

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