Transverse momentum spectra and nuclear modification factors of charged particles in Xe-Xe collisions at root s(NN)=5.44 TeV

0501149 - ÚJF 2020 RIV NL eng J - Journal Article
Acharya, S. - Acosta, F. T. - Adamová, Dagmar - Bielčík, J. - Bielčíková, Jana - Broz, M. - Contreras, J. G. - Horák, D. - Křížek, Filip - Kučera, Vít - Kushpil, Svetlana - Lavička, R. - Mareš, Jiří A. - Petráček, V. - Šumbera, Michal - Závada, Petr … Total 1005 authors
Transverse momentum spectra and nuclear modification factors of charged particles in Xe-Xe collisions at root s(NN)=5.44 TeV.
Physics Letters. B. Roč. 788, č. 1 (2019), s. 166-179. ISSN 0370-2693. E-ISSN 1873-2445
R&D Projects: GA MŠMT(CZ) LTT17018
Research Infrastructure: CERN-CZ - 90058
Institutional support: RVO:68378271 ; RVO:61389005
Keywords : ALICE experiment * heavy ion collisions
OECD category: 1.3 Physical sciences; Particles and field physics (FZU-D)
Impact factor: 4.384, year: 2019
Method of publishing: Open access
https://doi.org/10.1016/j.physletb.2018.10.052

ransverse momentum (p(T)) spectra of charged particles at mid-pseudorapidity in Xe-Xe collisions at root s(NN) = 5.44 TeV measured with the ALICE apparatus at the Large Hadron Collider are reported. The kinematic range 0.15 < p(T) < 50 GeV/c and vertical bar eta vertical bar < 0.8 is covered. Results are presented in nine classes of collision centrality in the 0-80% range. For comparison, a pp reference at the collision energy of root s = 5.44 TeV is obtained by interpolating between existing pp measurements at root s= 5.02 and 7 TeV. The nuclear modification factors in central Xe-Xe collisions and Pb-Pb collisions at a similar center-of-mass energy of root s(NN) = 5.02 TeV, and in addition at 2.76 TeV, at analogous ranges of charged particle multiplicity density < dN(ch)/d eta > show a remarkable similarity at p T > 10 GeV/c. The centrality dependence of the ratio of the average transverse momentum PT in Xe-Xe collisions over Pb-Pb collision at root s= 5.02 TeV is compared to hydrodynamical model calculations.
Permanent Link: http://hdl.handle.net/11104/0293549