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arXiv 0904.0866hep-ph
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Nambu-JonaLasinio模型中的中性夸克物质

Neutral quark matter in a Nambu-Jona Lasinio model with vector interaction

H. Abuki, R. Gatto, M. Ruggieri

摘要:

本文研究了零温有限密度下中性夸克物质的三味Nambu-JonaLasinio模型,考虑了标量、赝标量、Kobayashi-Maskawa-'tHooft相互作用以及排斥矢量加轴矢量相互作用项(以下简称矢量扩展NJL、VENJL).我们着重研究了中性物质中矢量相互作用对有限密度下手征恢复的影响。我们还研究了带电赝标介子能量随夸克化学势的演化。

英文摘要:

We investigate the three flavor Nambu-Jona Lasinio model of neutral quark matter at zero temperature and finite density, keeping into account the scalar, the pseudoscalar and the Kobayashi-Maskawa-'t Hooft interactions as well as the repulsive vector plus axial-vector interaction terms (vector extended NJL, VENJL in the following). We focus on the effect of the vector interaction on the chiral restoration at finite density in neutral matter. We also study the evolution of the charged pseudoscalar meson energies as a function of the quark chemical potential.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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