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Impact of different extended components of mean field models on transport coefficients of quark matter and their causal aspects

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arxiv 1901.09543 v3 pith:PUDELH3T submitted 2019-01-28 nucl-th hep-ph

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keywords coefficientstransportdifferentextendedmodelsanalyzedcausalcomponents
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Role of different extensions of Nambu\textendash Jona-Lasinio (NJL) model like addition of vector interaction, Polyakov loop extended version (PNJL) and the entangled PNJL (EPNJL) models on transport coefficients like shear viscosity, bulk viscosity, electrical conductivity and thermal conductivity are critically analyzed. We have considered the standard expressions of transport coefficients, obtained in relaxation time approximation of kinetic theory. Influence of temperature dependent order parameters on temperature profile of transport coefficients are analyzed. Causal aspect of massless case to these different extended components of mean field models are also picturized, where an approximated lower and upper bound are drawn for shear relaxation time.

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  1. From Non-interacting to Interacting Picture of Thermodynamics and Transport Coefficients for Quark Gluon Plasma

    hep-ph 2019-08 conditional novelty 3.0 of 10

    Three temperature dependent quasi-particle parameterizations fitted to LQCD entropy density all reduce transport coefficients, but only the thermal width model lowers eta/s.

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