Hot and dense matter in quark-hadron models

Details Hot and dense matter in quark-hadron models Hot and dense matter in quark-hadron models

2011-02-11

arxiv.org/abs/1102.2327v1

Physics

Nuclear Physics

Nuclear Theory

proceedings, ICPAQGP 2010, Goa

Scientific paper

We present a general approach to incorporate hadronic as well as quark degrees of freedom in a unified approach. This approach implements the correct degrees of freedom at high as well as low temperatures and densities. An effective Polyakov loop field serves as the order parameter for deconfinement. We employ a well-tested hadronic flavor-SU(3) model based on a chirally symmetric formulation that reproduces properties of ground state nuclear matter and yields good descriptions of nuclei and hypernuclei. Excluded volume effects simulating the finite size of the hadrons drive the transition to quarks at high temperatures and densities. We study the phase structure of the model and the transition to the quark gluon plasma and compare results to lattice gauge calculations.

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