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

Stojanovic, Milan and Sirunyan, AM and Tumasyan, A (2019) Measurement of anisotropic flow in XeXe collisions at 5.44 TeV with the CMS experiment. In: NUCLEAR PHYSICS A, 982 . pp. 395-398.

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Official URL: https://doi.org/10.1016/j.nuclphysa.2018.09.085

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 v(2), v(3) and v(4) 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 (P-T) 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: Journal Article
Publication: NUCLEAR PHYSICS A
Publisher: ELSEVIER SCIENCE BV
Additional Information: copyright of this article s belongs to ELSEVIER SCIENCE BV
Keywords: flow; collectivity; system size; correlations
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited: 20 Mar 2019 05:52
Last Modified: 20 Mar 2019 05:52
URI: http://eprints.iisc.ac.in/id/eprint/61980

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