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Recovering the chiral critical end-point via delocalization of quark interactions (CROSBI ID 210193)

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Benić, Sanjin ; Horvatić, Davor ; Klarić, Juraj Recovering the chiral critical end-point via delocalization of quark interactions // Physical review. D, Particles, fields, gravitation, and cosmology, 89 (2014), 054025-1-054025-7. doi: 10.1103/PhysRevD.89.054025

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

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Fizika

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