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Impact of baryon resonances on the chiral phase transition at finite temperature and density

D. Zschiesche·G. Zeeb·S. Schramm·H. Stoecker
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Abstract

We study the phase diagram of a generalized chiral SU(3)-flavor model in mean-field approximation. In particular, the influence of the baryon resonances, and their couplings to the scalar and vector fields, on the characteristics of the chiral phase transition as a function of temperature and baryon-chemical potential is investigated. Present and future finite-density lattice calculations might constrain the couplings of the fields to the baryons. The results are compared to recent lattice QCD calculations and it is shown that it is non-trivial to obtain, simultaneously, stable cold nuclear matter.

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D. Zschiesche, G. Zeeb, S. Schramm, H. Stoecker. 2004-08-31. Impact of baryon resonances on the chiral phase transition at finite temperature and density. https://doi.org/10.1088/0954-3899%2F31%2F8%2F022

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