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arXiv 1003.2843hep-ph
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NJL型核和夸克模型中的一级夸克-强子相变

First Order Quark-Hadron Phase Transition in the NJL-Type Nuclear and Quark Model

Y. Tsue, J. da Providencia, C. Providencia, M. Yamamura

摘要:

在包含标量-矢量八点相互作用的扩展Nambu-Jona-Lasinio模型中,研究了有限重子化学势下夸克-强子的相变,该模型保持了手征对称性.通过比较对称核物质与夸克物质的压强,确定了在给定重子密度下的实相。结果表明,在该模型中,当手征对称性恢复后,夸克-强子的一级相变发生在退禁闭相变处。

英文摘要:

The quark-hadron phase transition at finite baryon chemical potential is investigated in the extended Nambu-Jona-Lasinio model in which the scalar-vector eight-point interaction is included holding the chiral symmetry. By comparing a pressure of the symmetric nuclear matter with that of the quark matter, the realized phase at given baryon density is determined. As a result, the first order quark-hadron phase transition is derived where the deconfinement transition occurs after the chiral symmetry restoration in this model.

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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