Charged-particle angular correlations in XeXe collisions at root s(NN)=5.44 TeV

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The CMS Collaboration , Van Remortel , N , Eerola , P , Kirschenmann , H , Pekkanen , J , Voutilainen , M , Havukainen , J , Heikkila , J K , Jarvinen , T , Kinnunen , R , Lampen , T , Lassila-Perini , K , Laurila , S , Lehti , S , Linden , T , Luukka , P , Maenpaa , T , Siikonen , H , Tuominen , E , Tuominiemi , J , Sirunyan , A M , Karimäki , V & Tuuva , T 2019 , ' Charged-particle angular correlations in XeXe collisions at root s(NN)=5.44 TeV ' , Physical Review C , vol. 100 , no. 4 , 044902 . https://doi.org/10.1103/PhysRevC.100.044902

Title: Charged-particle angular correlations in XeXe collisions at root s(NN)=5.44 TeV
Author: Van Remortel, N.; Wang, Q.; Chen, H. S.; Chen, Y.; Liu, Z.; Wang, Z.; Zhang, H.; Zhao, J.; Wang, Y.; Raidal, M.; Eerola, P.; Kirschenmann, H.; Pekkanen, J.; Voutilainen, M.; Havukainen, J.; Heikkila, J. K.; Jarvinen, T.; Kinnunen, R.; Lampen, T.; Lassila-Perini, K.; Laurila, S.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Siikonen, H.; Tuominen, E.; Tuominiemi, J.; Bloch, D.; Schroeder, M.; Weber, M.; Czellar, S.; Kaur, S.; Sharma, S.; Bhattacharya, S.; Banerjee, S.; Das, P.; Rossi, A.; Fedi, G.; Lee, H.; Kim, J. H.; Ahmad, A.; Stojanovic, M.; Orsini, L.; Taylor, D.; Zhang, F.; Wang, L.; Wei, H.; Wang, S.; Zhang, Z.; Wagner, S. R.; Kortelainen, M. J.; Liu, M.; Liu, T.; Wang, J.; Chen, X.; Wang, H.; Wang, X.; Wu, Z.; Zhang, J.; Moeller, A.; Shin, Y. H.; Hu, M.; Lee, Y-J; Wang, T. W.; Evans, A.; Hansen, P.; Li, W.; Smith, G.; Wolf, M.; Han, J.; Li, H.; Savin, A.; Smith, W. H.; Sirunyan, A. M.; Karimäki, V.; Tuuva, T.
Contributor: University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Eija Tuominen / Principal Investigator
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
Date: 2019-10-03
Number of pages: 22
Belongs to series: Physical Review C
ISSN: 2469-9985
URI: http://hdl.handle.net/10138/310571
Abstract: Azimuthal correlations of charged particles in xenon-xenon collisions at a center-of-mass energy per nucleon pair of root s(NN) = 5.44 TeV are studied. The data were collected by the CMS experiment at the LHC with a total integrated luminosity of 3.42 mu b(-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 v(2), v(3), and v(4) 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 xenon-xenon 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.
Subject: QUARK-GLUON PLASMA
ANISOTROPIC FLOW
PERSPECTIVE
114 Physical sciences
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