Resonance states in an effective chiral hadronic model

• Authors: Philip Rau , Jan Steinheimer , Stefan Schramm , Horst Stöcker
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

effective model; hadronic resonances; QCD phase diagram; susceptibilities

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2012
• Volume: 10
• Issue: 6
• Pages: 1302-1305

Dates

published

1 - 12 - 2012

online

4 - 12 - 2012

Contributors

author

Philip Rau

author

Jan Steinheimer

• Frankfurt Institute for Advanced Studies (FIAS), Ruth-Moufang-Str. 1, 60438, Frankfurt am Main, Germany

author

Stefan Schramm

author

Horst Stöcker

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Identifiers

DOI

10.2478/s11534-012-0039-6