What question did this study set out to answer?

This study aims to derive an expression for the entropy of QCD plasma by isolating contributions from elementary excitations.

October 11, 1999Physical Review Letters215 citationsOpen Access

Entropy of the QCD Plasma

JBJean-Paul BlaizotCentre National de la Recherche Scientifique EIEdmond IancuCentre National de la Recherche Scientifique ARAnton RebhanTU Wien

Key Points

This study aims to derive an expression for the entropy of QCD plasma by isolating contributions from elementary excitations.
Utilized self-consistent approximations with fully dressed propagators.
Checked validity on a soluble model involving a scalar field.
Compared results to lattice data for purely gluonic QCD.
Accurate entropy description for QCD plasma down to temperatures twice the transition temperature.
Confirmed results align closely with lattice data predictions.

Abstract

Self-consistent approximations in terms of fully dressed propagators provide a simple expression for the entropy of an ultrarelativistic plasma, which isolates the contribution of the elementary excitations as a leading contribution. Further approximations, whose validity is checked on a soluble model involving a scalar field, allow us to calculate the entropy of the QCD plasma. We obtain an accurate description of lattice data for purely gluonic QCD, down to temperatures of about twice the transition temperature.

问 AI

Bookmark

View Full Paper