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arXiv · 1309.6541

Thermodynamics of the Quark-Gluon Plasma in Terms of Quasiparticles and Polyakov Line Condensates

Lucia Oliva·Paolo Castorina·Vincenzo Greco·Marco Ruggieri
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Abstract

We study a model of quark-gluon plasma of 2+1 flavors Quantum Chromodynamics in terms of quasiparticles propagating in a condensate of Polyakov loops. The Polyakov loop is coupled to quasiparticles by means of a gas-like effective potential. This study is useful to identify the effective degrees of freedom propagating in the medium above the critical temperature. Our finding is that a dominant part of the phase transition dynamics is accounted for by the Polyakov loop, hence the thermodynamics can be described without the need for rapidly increasing quasiparticle masses as $T \rightarrow T_c$, at variance respect to standard quasiparticle models.

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Lucia Oliva, Paolo Castorina, Vincenzo Greco, Marco Ruggieri. 2013-09-25. Thermodynamics of the Quark-Gluon Plasma in Terms of Quasiparticles and Polyakov Line Condensates. https://doi.org/10.1103/physrevd.88.097502

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