A new treatment of the in-medium chiral condensates

Abstract

A new formalism to calculate the in-medium chiral condensate is presented. At lower densities, this approach leads to a linear expression. If we demand a compatibility with the famous model-independent result, then the pion-nucleon sigma term should be six times the average current mass of light quarks. QCD-like interactions may slow the decreasing behavior of the condensate with increasing densities, compared with the linear extrapolation, if densities are lower than twice the nuclear saturation density. At higher densities, the condensate vanishes inevitably.

arXiv commentcontribution to the QCD 2003 conference in Montpellier

References in corpus (6)

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Cited by in corpus (4)

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• Thermodynamics with density and temperature dependent particle masses and properties of bulk strange quark matter and strangelets
• Two-flavor condensates in chiral dynamics: temperature and isospin density effects
• Chiral dynamics and pion properties at finite temperature and isospin chemical potential