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Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCD

Braun-Munzinger, Peter ; Kalweit, Alexander ; Redlich, Krzysztof ; Stachel, Johanna (2022):
Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCD. (Publisher's Version)
In: Physics Letters B, 747, pp. 292-298. Elsevier, ISSN 0370-2693, e-ISSN 1873-2445,
DOI: 10.26083/tuprints-00012827,
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Item Type: Article
Origin: Secondary publication
Status: Publisher's Version
Title: Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCD
Language: English
Abstract:

We construct net baryon number and strangeness susceptibilities as well as correlations between electric charge, strangeness and baryon number from experimental data at midrapidity of the ALICE Collaborationat CERN. The data were taken in central Pb–Pb collisions at √sNN = 2.76 TeV and cover one unit of rapidity. The resulting fluctuations and correlations are consistent with Lattice QCD results at the chiral crossover pseudocritical temperature Tc ≃ 155 MeV. This agreement lends strong support to the assumption that the fireball created in these collisions is of thermal origin and exhibits characteristic properties expected in QCD at the transition from the quark gluon plasma to the hadronic phase. The volume of the fireball for one unit of rapidity at Tc is found to exceed 3000 fm³. A detailed discussion on uncertainties in the temperature and volume of the fireball is presented. The results are linked to pion interferometry measurements and predictions from percolation theory.

Journal or Publication Title: Physics Letters B
Journal volume: 747
Publisher: Elsevier
Classification DDC: 500 Naturwissenschaften und Mathematik > 530 Physik
Divisions: 05 Department of Physics > Institute of Nuclear Physics
Date Deposited: 02 Mar 2022 12:36
Last Modified: 10 Mar 2022 09:41
DOI: 10.26083/tuprints-00012827
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-128275
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/12827
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