Recovering the chiral critical endpoint via delocalization of quark interactions

Benić, Sanjin and Horvatić, Davor and Klarić, Juraj (2014) Recovering the chiral critical endpoint via delocalization of quark interactions. Physical Review D, 89 (5). pp. 54025-7. ISSN 1550-7998

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Abstract

We show that for the lower branch of the quark condensate and values higher than approximately −(250  MeV)^3 the chiral critical endpoint in the Nambu–Jona-Lasinio model does not occur in the phase diagram. By using lattice motivated nonlocal quark interactions, we demonstrate that the critical endpoint can be recovered. We study this behavior for a range of condensate values and find that the variation in the position of the critical endpoint is more pronounced as the condensate is increased.

Item Type: Article
Date: March 2014
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2014) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 26 Aug 2014 12:17
Last Modified: 26 Aug 2014 12:17
URI: http://digre.pmf.unizg.hr/id/eprint/2385

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