Lu, Y (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
文章类型:
Article
英文摘要:
We investigate the dynamical chiral symmetry breaking and its restoration at finite density and temperature within the two-flavor Nambu-Jona-Lasinio model, and mainly focus on the critical behaviors near the critical end point (CEP) and tricritical point (TCP) of quantum chromodynamics. The multi-solution region of the Nambu and Wigner ones is determined in the phase diagram for the massive and massless current quark, respectively. We use the various susceptibilities to locate the CEP/TCP and then extract the critical exponents near them. Our calculations reveal that the various susceptibilities share the same critical behaviors for the physical current quarkmass, while they showdifferent features in the chiral limit.
类目[WOS]:
Physics, Particles & Fields
关键词[WOS]:
CHIRAL PHASE-TRANSITION
; JONA-LASINIO MODEL
; COLOR SUPERCONDUCTIVITY
; BARYON DENSITY
; QUARK MATTER
; PNJL MODEL
; SUSCEPTIBILITIES
; CHROMODYNAMICS
; TEMPERATURE
; EQUATION
Lu, Y,Du, YL,Cui, ZF,et al. Critical behaviors near the (tri-)critical end point of QCD within the NJL model[J]. EUROPEAN PHYSICAL JOURNAL C,2015,75(10):495.
