Transverse 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. (C) 2018 The Author. Published by Elsevier B.V.
|Titolo:||Transverse momentum spectra and nuclear modification factors of charged particles in Xe–Xe collisions at sNN=5.44TeV|
|Data di pubblicazione:||2019|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.physletb.2018.10.052|
|Appare nelle tipologie:||1.1 Articolo in rivista|
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|chargedpart_XeXe_544TeV.pdf||Transverse momentum spectra and nuclear modification factors of charged particles in Xe-Xe collisions at root s(NN)=5.44 TeV||2a Post-print versione editoriale / Version of Record||Visibile a tuttiVisualizza/Apri|
|chargedpart_XeXe_544TeV-arxiv.pdf||Transverse momentum spectra and nuclear modification factors of charged particles in Xe-Xe collisions at root s(NN)=5.44 TeV - arxiv||2. Post-print / Author's Accepted Manuscript||Visibile a tuttiVisualizza/Apri|