Charged-particle angular correlations in XeXe collisions at √sNN = 5.44 TeV

Sirunyan, A.M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2019) Charged-particle angular correlations in XeXe collisions at √sNN = 5.44 TeV. PHYSICAL REVIEW C, 100 (4). pp. 1-22. ISSN 2469-9985 E-ISSN 2469-9993

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Abstract

Azimuthal correlations of charged particles in xenon-xenon collisions at a center-of-mass energy per nucleon pair of √sNN = 5.44 TeV are studied. The data were collected by the CMS experiment at the LHC with a total integrated luminosity of 3.42 μb−1 . The collective motion of the system formed in the collision is parametrized by a Fourier expansion of the azimuthal particle density distribution. The azimuthal anisotropy coefficients v2, v3, and v4 are obtained by the scalar-product, two-particle correlation, and multiparticle correlation methods. Within a hydrodynamic picture, these methods have different sensitivities to noncollective and fluctuation effects. The dependence of the Fourier coefficients on the size of the colliding system is explored by comparing the xenonxenon results with equivalent lead-lead data. Model calculations that include initial-state fluctuation effects are also compared to the experimental results. The observed angular correlations provide new constraints on the hydrodynamic description of heavy ion collisions.

Item Type:	Article (Journal)
Additional Information:	7861/79293
Uncontrolled Keywords:	Charged-particle angular; Correlations; XeXe 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 > Department of Physics
Depositing User:	Dr Mohd Adli MD Ali
Date Deposited:	28 Feb 2020 17:36
Last Modified:	28 Feb 2020 17:36
URI:	http://irep.iium.edu.my/id/eprint/79293

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