TY  - CONF
A1  - Herold, Christoph
A1  - Nahrgang, Marlene
A1  - Mishustin, Igor N.
A1  - Bleicher, Marcus
T1  - Dynamic enhancement of fluctuation signals at the QCD phase transition
T2  - Proceedings of Science
N2  - We study the impact of nonequilibrium effects on the relevant signals within a chiral fluid dynamics model including explicit propagation of the Polyakov loop. An expanding heat bath of quarks is coupled to the Langevin dynamics of the order parameter fields. The model is able to describe relaxational processes, including critical slowing down and the enhancement of soft modes near the critical point. At the first-order phase transition we observe domain formation and phase coexistence in the sigma and Polyakov loop field leading to a significant amount of clumping in the energy density. This effect gets even more pronounced if we go to systems at finite baryon density. Here the formation of high-density clusters could provide an important observable signal for upcoming experiments at FAIR and NICA.We conclude that improving our understanding of dynamical symmetry breaking is important to give realistic estimates for experimental observables connected to the QCD phase transition.
Y1  - 2013
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/36535
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-365353
UR  - http://pos.sissa.it/archive/conferences/185/052/CPOD%202013_021.pdf
SN  - 1824-8039
N1  - (c) Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
N1  - 8th International Workshop on Critical Point and Onset of Deconfinement, March 11 to 15, 2013 Napa, California, USA
VL  - 2013
IS  - PoS(CPOD 2013)021
SP  - 1
EP  - 8
PB  - SISSA
CY  - Trieste
ER  -