Parton/hadron dynamics in heavy-ion collisions at FAIR energies
Recent STAR data for the directed flow of protons, antiprotons and charged pions obtained within the beam energy scan program are analyzed within the Parton-Hadron-String-Dynamics (PHSD/HSD) transport models. Both versions of the kinetic approach are used to clarify the role of partonic degrees of f...
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doaj-20760f40d8b14060bbe9c03730b8996d2021-08-02T03:06:14ZengEDP SciencesEPJ Web of Conferences2100-014X2015-01-01950100410.1051/epjconf/20149501004epjconf_icnfp2014_01004Parton/hadron dynamics in heavy-ion collisions at FAIR energiesCassing W.0Konchakovski V. P.1Palmese A.2Toneev V. D.3Bratkovskaya E. L.4Institut für Theoretische Physik, University of GiessenInstitut für Theoretische Physik, University of GiessenInstitut für Theoretische Physik, University of GiessenJoint Institute for Nuclear ResearchInstitut für Theoretische Physik, Johann Wolfgang Goethe University Frankfurt/MRecent STAR data for the directed flow of protons, antiprotons and charged pions obtained within the beam energy scan program are analyzed within the Parton-Hadron-String-Dynamics (PHSD/HSD) transport models. Both versions of the kinetic approach are used to clarify the role of partonic degrees of freedom. The PHSD results, simulating a partonic phase and its coexistence with a hadronic one, are roughly consistent with the STAR data. Generally, the semi-qualitative agreement between the measured data and model results supports the idea of a crossover type of quark-hadron transition which softens the nuclear EoS but shows no indication of a first-order phase transition. Furthermore, the directed flow of kaons and antikaons is evaluated in the PHSD/HSD approachesfrom √sNN ≈ 3 - 200 GeV which shows a high sensitivity to hadronic potentials in the FAIR/NICA energy regime √sNN ≤ 8 GeV.http://dx.doi.org/10.1051/epjconf/20149501004 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Cassing W. Konchakovski V. P. Palmese A. Toneev V. D. Bratkovskaya E. L. |
spellingShingle |
Cassing W. Konchakovski V. P. Palmese A. Toneev V. D. Bratkovskaya E. L. Parton/hadron dynamics in heavy-ion collisions at FAIR energies EPJ Web of Conferences |
author_facet |
Cassing W. Konchakovski V. P. Palmese A. Toneev V. D. Bratkovskaya E. L. |
author_sort |
Cassing W. |
title |
Parton/hadron dynamics in heavy-ion collisions at FAIR energies |
title_short |
Parton/hadron dynamics in heavy-ion collisions at FAIR energies |
title_full |
Parton/hadron dynamics in heavy-ion collisions at FAIR energies |
title_fullStr |
Parton/hadron dynamics in heavy-ion collisions at FAIR energies |
title_full_unstemmed |
Parton/hadron dynamics in heavy-ion collisions at FAIR energies |
title_sort |
parton/hadron dynamics in heavy-ion collisions at fair energies |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2015-01-01 |
description |
Recent STAR data for the directed flow of protons, antiprotons and charged pions obtained within the beam energy scan program are analyzed within the Parton-Hadron-String-Dynamics (PHSD/HSD) transport models. Both versions of the kinetic approach are used to clarify the role of partonic degrees of freedom. The PHSD results, simulating a partonic phase and its coexistence with a hadronic one, are roughly consistent with the STAR data. Generally, the semi-qualitative agreement between the measured data and model results supports the idea of a crossover type of quark-hadron transition which softens the nuclear EoS but shows no indication of a first-order phase transition. Furthermore, the directed flow of kaons and antikaons is evaluated in the PHSD/HSD approachesfrom √sNN ≈ 3 - 200 GeV which shows a high sensitivity to hadronic potentials in the FAIR/NICA energy regime √sNN ≤ 8 GeV. |
url |
http://dx.doi.org/10.1051/epjconf/20149501004 |
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