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arXiv 2005.12037nucl-thhep-ph
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Nambu-Jona-Lasinio模型中手性分子解离和扩散的有限尺寸效应

Finite size effect on Dissociation and Diffusion of chiral partners in Nambu-Jona-Lasinio model

Paramita Deb, Sabyasachi Ghosh, Jai Prakash, Santosh Kumar Das, Raghava Varma

摘要:

随着π介子和σ介子模的质量,它们分解成夸克介质提供了手征伙伴的详细光谱结构。本文在Nambu-Jona-Lasinio模型框架下,研究了有限尺寸效应对手性分子细节结构的影响。通过这种解离机制,研究了它们的扩散和传导。在手征对称性的恢复阶段,不同温度下手征伙伴的质量、宽度、扩散系数、电导率都发生了合并,但在较低温度下,当引入有限尺寸效应时,所有手征伙伴的合并点都发生了移动。由于有限尺寸的考虑,扩散和传导的强度也降低了。

英文摘要:

Along with masses of pion and sigma meson modes, their dissociation into quark medium provide a detail spectral structures of the chiral partners. Present article has studied a finite size effect on that detail structure of chiral partners by using the framework of Nambu-Jona-Lasinio model. Through this dissociation mechanism, their diffusions and conductions are also studied. The masses, widths, diffusion coefficients, conductivities of chiral partners are merged at different temperatures in restore phase of chiral symmetry, but merging points of all are shifted in lower temperature, when one introduce finite size effect into the picture. The strengths of diffusions and conductions are also reduced due to finite size consideration.

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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