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First-Order Quark-Hadron Phase-Transition in a NJL-Type Model for Nuclear and Quark Matter - The Case of Symmetric Nuclear Matter -

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

Ref.: PROGRESS OF THEORETICAL PHYSICS 123, 1013-1028 (2010)

Abstract: 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 the 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.