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

We construct net baryon number and strangeness susceptibilities as well as correlations between electric charge and strangeness from experimental data of the ALICE Collaboration at the CERN LHC. The data were taken in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV. The resulting fluctuations and corre...

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Autores principales: Braun-Munzinger, Peter, Kalweit, Alexander, Redlich, Krzysztof, Stachel, Johanna
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2015.05.077
http://cds.cern.ch/record/1979298
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author Braun-Munzinger, Peter
Kalweit, Alexander
Redlich, Krzysztof
Stachel, Johanna
author_facet Braun-Munzinger, Peter
Kalweit, Alexander
Redlich, Krzysztof
Stachel, Johanna
author_sort Braun-Munzinger, Peter
collection CERN
description We construct net baryon number and strangeness susceptibilities as well as correlations between electric charge and strangeness from experimental data of the ALICE Collaboration at the CERN LHC. The data were taken in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV. The resulting fluctuations and correlations are consistent with Lattice QCD results at the chiral crossover pseudocritical temperature $T_c\simeq 155$ 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 $T_c$ is found to exceed 4000 fm$^3$. 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.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
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spelling cern-19792982022-08-10T13:01:49Zdoi:10.1016/j.physletb.2015.05.077http://cds.cern.ch/record/1979298engBraun-Munzinger, PeterKalweit, AlexanderRedlich, KrzysztofStachel, JohannaConfronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCDParticle Physics - PhenomenologyWe construct net baryon number and strangeness susceptibilities as well as correlations between electric charge and strangeness from experimental data of the ALICE Collaboration at the CERN LHC. The data were taken in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV. The resulting fluctuations and correlations are consistent with Lattice QCD results at the chiral crossover pseudocritical temperature $T_c\simeq 155$ 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 $T_c$ is found to exceed 4000 fm$^3$. 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.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 Collaboration at 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 fm 3 . 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.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 Collaboration at 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 fm 3 . 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.We construct net baryon number and strangeness susceptibilities as well as correlations between electric charge and strangeness from experimental data of the ALICE Collaboration at the CERN LHC. The data were taken in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV. The resulting fluctuations and correlations are consistent with Lattice QCD results at the chiral crossover pseudocritical temperature $T_c\simeq 155$ 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 $T_c$ is found to exceed 4000 fm$^3$. 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.arXiv:1412.8614oai:cds.cern.ch:19792982014-12-30
spellingShingle Particle Physics - Phenomenology
Braun-Munzinger, Peter
Kalweit, Alexander
Redlich, Krzysztof
Stachel, Johanna
Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCD
title Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCD
title_full Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCD
title_fullStr Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCD
title_full_unstemmed Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCD
title_short Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCD
title_sort confronting fluctuations of conserved charges in central nuclear collisions at the lhc with predictions from lattice qcd
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.physletb.2015.05.077
http://cds.cern.ch/record/1979298
work_keys_str_mv AT braunmunzingerpeter confrontingfluctuationsofconservedchargesincentralnuclearcollisionsatthelhcwithpredictionsfromlatticeqcd
AT kalweitalexander confrontingfluctuationsofconservedchargesincentralnuclearcollisionsatthelhcwithpredictionsfromlatticeqcd
AT redlichkrzysztof confrontingfluctuationsofconservedchargesincentralnuclearcollisionsatthelhcwithpredictionsfromlatticeqcd
AT stacheljohanna confrontingfluctuationsofconservedchargesincentralnuclearcollisionsatthelhcwithpredictionsfromlatticeqcd

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