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Title: Aspects of isentropic trajectories in chiral effective models
Authors: Stiele, Rainer 
Alberico, Wanda Maria
Beraudo, Andrea
Pereira, Renan Câmara 
Costa, Pedro 
Hansen, Hubert
Motta, Mario
Issue Date: 2020
Publisher: IOP Publishing Ltd
Project: INFN Post Doctoral Fellowship (competition INFN notice n. 18372/2016, RS) 
STSM Grants from the COST Action CA15213 “Theory of hot matter and relativistic heavy-ion collisions” (THOR) 
Serial title, monograph or event: Journal of Physics: Conference Series
Volume: 1667
Issue: 1
Abstract: The evolution of the fireball in heavy ion collisions is an isentropic process, meaning that it follows a trajectory of constant entropy per baryon in the phase diagram of the strong interaction. The collective acceleration of the system is determined by the speed of sound, while fluctuations of conserved charges are encoded in quark-number susceptibilities: together, they leave their imprint in final observables. Here, this isentropic evolution will be analysed within chiral effective models that account for both chiral and center symmetry breaking, two central aspects of QCD. Our discussion focusses on the impact on the isentropic trajectories of the treatment of high-momentum modes, of the meson contribution to thermodynamics and of the number of quark flavours.
ISSN: 1742-6588
DOI: 10.1088/1742-6596/1667/1/012043
Rights: openAccess
Appears in Collections:I&D CFis - Artigos em Revistas Internacionais

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