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Phase diagram of Nambu-Jona-Lasinio model with dimensional regularization

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arxiv 1202.5220 v1 pith:GIZKAIHK submitted 2012-02-23 hep-ph

Phase diagram of Nambu-Jona-Lasinio model with dimensional regularization

classification hep-ph
keywords diagramregularizationdimensionalphasemodelnambu-jona-lasiniocutoffdifference
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We investigate the phase diagram on temperature-chemical potential plane in the Nambu-Jona-Lasinio model with the dimensional regularization. While the structure of the resulting diagram shows resemblance to the one in the frequently used cutoff regularization, some results of our study indicate striking difference between these regularizations. The diagram in the dimensional regularization exhibits strong tendency of the first order phase transition.

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