Higher moment fluctuations of identified particle distributions from ALICE



Behera, Nirbhay Kumar, Acharya, S, Acosta, FT, Adamova, D, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z
et al (show 1009 more authors) (2019) Higher moment fluctuations of identified particle distributions from ALICE .

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Abstract

Cumulants of conserved charges fluctuations are regarded as a potential tool to study the criticality in the QCD phase diagram and to determine the freeze-out parameters in a model-independent way. At LHC energies, the measurements of the ratio of the net-baryon (net-proton) cumulants can be used to test the lattice QCD predictions. In this work, we present the first measurements of cumulants of the net-proton number distributions up to 4 th order in Pb–Pb collisions at s NN = 2.76 and 5.02 TeV as a function of collision centrality. We compare our cumulant ratios results with the STAR experiment net-proton results measured in the first phase of the Beam Energy Scan program at RHIC. The results can be used to obtain the chemical freeze-out parameters at LHC.

Item Type: Conference Item (Unspecified)
Uncontrolled Keywords: Fluctuations, conserved quantum number, freeze-out parameters, lattice QCD, ALICE, LHC
Depositing User: Symplectic Admin
Date Deposited: 07 May 2019 09:24
Last Modified: 16 Jun 2026 05:49
DOI: 10.1016/j.nuclphysa.2018.11.030
Open Access URL: https://doi.org/10.1016/j.nuclphysa.2018.11.030
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3040019
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