Measurement of Prompt D0 Meson Azimuthal Anisotropy in Pb-Pb Collisions at sNN =5.02 TeV

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Measurement of Prompt D0 Meson Azimuthal Anisotropy in Pb-Pb Collisions at sNN =5.02 TeV. Physical Review Letters, 120 (20). pp. 202301-1. ISSN 0031-9007 E-ISSN 1079-7114

	PDF - Published Version Restricted to Repository staff only Download (562kB) | Request a copy
	PDF (Scopus) - Supplemental Material Restricted to Repository staff only Download (589kB) | Request a copy
Preview	PDF Download (807kB) | Preview

Abstract

The prompt D0 meson azimuthal anisotropy coefficients, v2 and v3, are measured at midrapidity (jyj < 1.0) in Pb-Pb collisions at a center-of-mass energy ffiffiffiffiffiffiffiffi sNN p ¼ 5.02 TeV per nucleon pair with data collected by the CMS experiment. The measurement is performed in the transverse momentum (pT) range of 1 to 40 GeV=c, for central and midcentral collisions. The v2 coefficient is found to be positive throughout the pT range studied. The first measurement of the prompt D0 meson v3 coefficient is performed, and values up to 0.07 are observed for pT around 4 GeV=c. Compared to measurements of charged particles, a similar pT dependence, but smaller magnitude for pT < 6 GeV=c, is found for prompt D0 meson v2 and v3 coefficients. The results are consistent with the presence of collective motion of charm quarks at low pT and a path length dependence of charm quark energy loss at high pT, thereby providing new constraints on the theoretical description of the interactions between charm quarks and the quark-gluon plasma.

Item Type:	Article (Journal)
Additional Information:	7861/65843
Uncontrolled Keywords:	Prompt D0 Meson; Azimuthal Anisotropy; in Pb-Pb Collisions
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 Kulliyyah of Science > Department of Physics
Depositing User:	Dr Mohd Adli MD Ali
Date Deposited:	17 Aug 2018 16:25
Last Modified:	24 Jan 2019 14:52
URI:	http://irep.iium.edu.my/id/eprint/65843

Actions (login required)

View Item