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arXiv · hep-ph/0412298

The role of quark mass in cold and dense perturbative QCD

Eduardo S. Fraga·Paul Romatschke
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Abstract

We consider the equation of state of QCD at high density and zero temperature in perturbation theory to first order in the coupling constant $α_s$. We compute the thermodynamic potential including the effect of a non-vanishing mass for the strange quark and show that corrections are sizable. Renormalization group running of the coupling and the strange quark mass plays a crucial role. The structure of quark stars is dramatically modified.

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Eduardo S. Fraga, Paul Romatschke. 2005-05-27. The role of quark mass in cold and dense perturbative QCD. https://doi.org/10.1103/physrevd.71.105014

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