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, 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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2015-07-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269315004219 |
| _version_ | 1818608188069511168 |
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| author | P. Braun-Munzinger A. Kalweit K. Redlich J. Stachel |
| author_facet | P. Braun-Munzinger A. Kalweit K. Redlich J. Stachel |
| author_sort | P. Braun-Munzinger |
| collection | DOAJ |
| description | 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 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. |
| first_indexed | 2024-12-16T14:38:40Z |
| format | Article |
| id | doaj.art-bbaa71ff3f924dbab0c39550fbe82cf2 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-16T14:38:40Z |
| publishDate | 2015-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-bbaa71ff3f924dbab0c39550fbe82cf22022-12-21T22:28:02ZengElsevierPhysics Letters B0370-26931873-24452015-07-01747C29229810.1016/j.physletb.2015.05.077Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCDP. Braun-Munzinger0A. Kalweit1K. Redlich2J. Stachel3Extreme Matter Institute EMMI, GSI, Planckstr. 1, D-64291 Darmstadt, GermanyEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandInstitute of Theoretical Physics, University of Wroclaw, PL-50204 Wrocław, PolandPhysikalisches Institut, Universität Heidelberg, Heidelberg, GermanyWe 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 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.http://www.sciencedirect.com/science/article/pii/S0370269315004219 |
| spellingShingle | P. Braun-Munzinger A. Kalweit K. Redlich J. Stachel Confronting fluctuations of conserved charges in central nuclear collisions at the LHC with predictions from Lattice QCD Physics Letters B |
| 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 |
| url | http://www.sciencedirect.com/science/article/pii/S0370269315004219 |
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