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From cold to hot nuclear matter
Author(s) -
Bratkovskaya E. L.,
Cassing W.,
Konchakovski V. P.,
Toneev V. D.
Publication year - 2015
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.201512231
Subject(s) - physics , hadronization , parton , hadron , nuclear physics , particle physics , large hadron collider , elliptic flow , nuclear matter , covariant transformation , nucleon , mathematical physics , quantum mechanics , ion , heavy ion
The dynamics of partons and hadrons in relativistic nucleus‐nucleus collisions is analyzed within the Parton‐HadronString Dynamics (PHSD) transport approach which is based on a dynamical quasiparticle model for the partonic phase (DQPM) including a dynamical hadronization scheme with covariant transition rates. The PHSD approach is applied to nucleus‐nucleus collisions from FAIR/NICA to LHC energies. The traces of partonic interactions are found in particular in the directed and elliptic flow of hadrons and in their transverse mass spectra. Whereas at RHIC and LHC energies the dynamics is dominated by partonic degrees‐of‐freedom in the hot QGP, we find at FAIR/NICA energies a moderately hot but dense matter where chiral symmetry restoration and hadronic potentials appear to play a major role. (© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)