Preprint

GSI-2013-00014

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Resonance states in an effective chiral hadronic model

Rau, P. (Corresponding author) ; Steinheimer, J. ; Schramm, S. ; Stöcker, H.GSI*

2012
de Gruyter Berlin

Please use a persistent id in citations: doi:10.2478/s11534-012-0039-6

Abstract: With an effective chiral flavour SU(3) model we show the effect of hadronic resonances on the QCD phase diagram. We state that varying the resonance couplings to the scalar and vector fields affects the order and location of the phase transition, the possible existence of a critical end point (CEP), and the thermodynamic properties. We present (strange) quark number susceptibilities at zero baryochemical potential and at three different points at the phase transition. Comparing results to lattice QCD, we state that reasonable large vector couplings limit the phase transition to a smooth crossover ruling out a CEP.

Note: Talk given at the international conference on Critical Point and Onset of Deconfinement 2011 in Wuhan, PR China

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Contributing Institute(s):

1. Koordination Theorie GSI (THE)
2. Wissenschaftliche Geschäftsführung FAIR & GSI (WGF)

Research Program(s):

1. 532 - Nuclear and Quark Gluon Matter (NQM) (POF2-532) (POF2-532)

Appears in the scientific report 2012

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