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arXiv 0704.3207hep-ph
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胶子凝聚体在填充费米球时的行为

Gluon condensate behaviour at filling the Fermi sphere up

A. E. Dorokhov, S. V. Molodtsov, G. M. Zinovjev

摘要:

研究了在有限温度和重子/夸克数密度下,夸克在瞬子液体中动态产生质量,填充费米球对费米球的影响。它表明,特别是,手征对称性恢复相变的边界被转移到更大(约100 MeV以上)的夸克化学势值相比,在Nambu-Jona-Lasinio模型中固有的幅度。

英文摘要:

The impact of filling up the Fermi sphere with the quarks, which dynamically generated their masses on the instanton liquid at finite temperature and baryonic/quark number density, is investigated. It is demonstrated, in particular, that the boundary of chiral symmetry restoration phase transition is shifted to the larger (about 100 MeV more) value of quark chemical potential compared to the magnitude inherent in the Nambu-Jona-Lasinio model.

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