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Heidelberg 2015 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 65: Heavy Ion Collisions and QCD Phases 9

HK 65.2: Talk

Thursday, March 26, 2015, 17:15–17:30, T/SR14

Generalizations of the excluded-volume mechanism — •Stefan Typel — GSI, Darmstadt, Germany

The excluded-volume mechanism is a simple approach in order to take the finite size of particles and their short-range repulsive interaction into account in models for the nuclear matter equation of state. It can also be used to simulate the suppression of cluster formation with increasing density that is caused by the action of the Pauli principle. The excluded-volume mechanism can be seen more generally as a means to describe a change in the number of effective degrees of freedom. Thermodynamic consistency requires the occurrence of particular rearrangement contributions in a generalized formulation. Examples for the application of this extended approach to hadron and quark matter are discussed.

This work is supported by the Helmholtz Association (HGF) through the Nuclear Astrophysics Virtual Institute (NAVI, VH-VI-417)

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