Recovering the chiral critical end-point via delocalization of quark interactions (CROSBI ID 210193)
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Podaci o odgovornosti
Benić, Sanjin ; Horvatić, Davor ; Klarić, Juraj
engleski
Recovering the chiral critical end-point via delocalization of quark interactions
We show that for the lower branch of the quark condensate and values higher than approximately −(250 MeV)^3 the chiral critical end-point in the Nambu--Jona-Lasinio model does not occur in the phase diagram. By using lattice motivated non-local quark interactions, we demonstrate that the critical end-point can be recovered. We study this behavior for a range of condensate values and find that the variation in the position of the critical end-point is more pronounced as the condensate is increased.
chiral phase transition; critical end-point; non-local interactions
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Podaci o izdanju
89
2014.
054025-1-054025-7
objavljeno
1550-7998
10.1103/PhysRevD.89.054025