Measurement of anisotropic flow in XeXe collisions at 5.44 TeV with the CMS experiment

Stojanovic, Milan and Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Md. Ali, Mohd. Adli (2019) Measurement of anisotropic flow in XeXe collisions at 5.44 TeV with the CMS experiment. Nuclear Physics A, 982. pp. 395-398. ISSN 0375-9474

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Abstract

New measurements of anisotropic flow in XeXe collisions at a center-of-mass energy of 5.44 TeV per nucleon pair, collected by the CMS experiment at the LHC, are presented. The v2, v3 and v4 Fourier coefficients of the anisotropic azimuthal distribution are obtained employing three different analysis techniques: two-particle correlations, the scalar product method, and multiparticle cumulants, which have different sensitivities to non-flow and flow fluctuation effects. The results are shown as a function of transverse momentum (pT ) for various centrality selections, and compared with corresponding results from PbPb collisions. These new measurements in a smaller nucleus-nucleus system than PbPb provide additional insights into the system-size dependence of the collective flow induced by the dominant collision geometry and its fluctuations. In particular, these results, compared to theoretical predictions and Monte Carlo generators, will provide important details on the system size dependence of the medium response in heavy ion collisions. They also offer a unique opportunity to study the onset of flow from small to large systems.

Item Type:	Article (Journal)
Additional Information:	7861/71936
Uncontrolled Keywords:	Flow, collectivity, system size, correlations
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:	02 May 2019 15:52
Last Modified:	12 Jul 2019 10:13
URI:	http://irep.iium.edu.my/id/eprint/71936

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