IIUM Repository

Studies of beauty suppression via nonprompt D-0 mesons in Pb-Pb collisions at root s(NN)=5.02 TeV

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2019) Studies of beauty suppression via nonprompt D-0 mesons in Pb-Pb collisions at root s(NN)=5.02 TeV. Physical Review Letters, 123. pp. 1-17. ISSN 0031-9007

[img] PDF - Published Version
Restricted to Repository staff only

Download (548kB) | Request a copy
[img]
Preview
PDF (Scopus) - Supplemental Material
Download (343kB) | Preview
[img]
Preview
PDF (wos) - Supplemental Material
Download (984kB) | Preview

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.

Item Type: Article (Journal)
Additional Information: 7861/79625
Uncontrolled Keywords: Studies of beauty suppression; Via nonprompt D-0 mesons; Pb-Pb collisions at root s(NN)=5.02 TeV
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Science > Department of Physics
Depositing User: Dr Mohd Adli MD Ali
Date Deposited: 18 Mar 2020 19:09
Last Modified: 18 Mar 2020 19:09
URI: http://irep.iium.edu.my/id/eprint/79625

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year