Sirunyan, AM and Tumasyan, A (2019) Observation of prompt J/ψ meson elliptic flow in high-multiplicity pPb collisions at √sNN = 8.16 TeV. In: PHYSICS LETTERS B, 791 . pp. 172-194.
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Abstract
A measurement of the elliptic flow (v(2)) of prompt J/psi mesons in high-multiplicity pPbcollisions is reported using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy root s(NN)= 8.16 TeV. Prompt J/psi mesons decaying into two muons are reconstructed in the rapidity region in the nucleon-nucleon center-of-mass frame (y(cm)), corresponding to either -2.86 < y(cm) < -1.86 or 0.94 < y(cm)< 1.94. The average v(2) result from the two rapidity ranges is reported over the transverse momentum (p(T)) range from 0.2 to 10 GeV. Positive v(2) values are observed for the prompt J/psi meson, as extracted from long-range two-particle correlations with charged hadrons, for 2 < p(T) < 8 GeV. The prompt J/psi results are compared with previous CMS measurements of elliptic flow for open charm mesons (D-0) and strange hadrons. From these measurements, constraints can be obtained on the collective dynamics of charm quarks produced in high-multiplicity events arising from small systems.
| Item Type: | Journal Article |
|---|---|
| Publication: | PHYSICS LETTERS B |
| Publisher: | Elsevier B.V. |
| Additional Information: | The copyright of this article belongs to the Authors. |
| Keywords: | CMS; Correlation; Flow; Heavy flavor; Heavy-ion physics; pPb |
| Department/Centre: | Division of Physical & Mathematical Sciences > Centre for High Energy Physics |
| Date Deposited: | 13 Sep 2022 05:18 |
| Last Modified: | 13 Sep 2022 05:18 |
| URI: | https://eprints.iisc.ac.in/id/eprint/62846 |
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