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

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...

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Bibliographic Details
Published in:arXiv.org 2020-05
Main Authors: Deb, Paramita, Ghosh, Sabyasachi, Prakash, Jai, Das, Santosh Kumar, Varma, Raghava
Format: Article
Language:English
Subjects:
Diffusion effects
Pions
Sigma-mesons
Size effects
Online Access:Get full text
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.2005.12037