Determination of QCD phase diagram from the imaginary chemical potential region

被引：57

作者：

Sakai, Yuji ^{[1
]}

Kashiwa, Kouji ^{[1
]}

Kouno, Hiroaki ^{[2
]}

Matsuzaki, Masayuki ^{[3
]}

Yahiro, Masanobu ^{[1
]}

机构：

[1] Kyushu Univ, Grad Sch Sci, Dept Phys, Fukuoka 8128581, Japan

[2] Saga Univ, Dept Phys, Saga 8408502, Japan

[3] Fukuoka Univ Educ, Dept Phys, Fukuoka 8114192, Japan

来源：

PHYSICAL REVIEW D | 2009年 / 79卷 / 09期

关键词：

CHIRAL-SYMMETRY RESTORATION; DYNAMICAL MODEL; POLYAKOV-LOOP; LATTICE QCD; TEMPERATURE; DENSITY; THERMODYNAMICS; TRANSITION; ANALOGY; VECTOR;

D O I：

10.1103/PhysRevD.79.096001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We test the reliability of the Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model, comparing the model result with the lattice data at nonzero imaginary chemical potential. The PNJL model with the vector-type four-quark and scalar-type eight-quark interactions reproduces the lattice data on the pseudocritical temperatures of the deconfinement and chiral phase transitions. The QCD phase diagram in the real chemical potential region is predicted by the PNJL model. The critical end point survives, even if the vector-type four-quark interaction is taken into account.

引用

页数：9

共 67 条

[11] Three flavor Nambu-Jona-Lasinio model with Polyakov loop and competition with nuclear matter [J].

Ciminale, M. ;

Gatto, R. ;

Ippolito, N. D. ;

Nardulli, G. ;

Ruggieri, M. .

PHYSICAL REVIEW D, 2008, 77 (05)

[12]

COSTA P, ARXIV08072134

[13]

COSTA P, ARXIV08013616

[14] QCD thermodynamics from an imaginary μB:: Results on the four flavor lattice model -: art. no. 074509 [J].

D'Elia, M ;

Lombardo, MP .

PHYSICAL REVIEW D, 2004, 70 (07)

[15] Finite density QCD via an imaginary chemical potential [J].

D'Elia, M ;

Lombardo, MP .

PHYSICAL REVIEW D, 2003, 67 (01)

[16] Strongly interacting quark-gluon plasma, and the critical behavior of QCD at imaginary μ [J].

D'Elia, Massimo ;

Di Renzo, Francesco ;

Lombardo, Maria Paola .

PHYSICAL REVIEW D, 2007, 76 (11)

[17] The QCD phase diagram for three degenerate flavors and small baryon density [J].

de Forcrand, P ;

Philipsen, O .

NUCLEAR PHYSICS B, 2003, 673 (1-2) :170-186

[18] The QCD phase diagram for small densities from imaginary chemical potential [J].

de Forcrand, P ;

Philipsen, O .

NUCLEAR PHYSICS B, 2002, 642 (1-2) :290-306

[19] Dense quarks, and the fermion sign problem, in a SU(N) matrix model -: art. no. 065008 [J].

Dumitru, A ;

Pisarski, RD ;

Zschiesche, D .

PHYSICAL REVIEW D, 2005, 72 (06)

[20] Deconfining phase transition as a matrix model of renormalized Polyakov loops [J].

Dumitru, A ;

Hatta, Y ;

Lenaghan, J ;

Orginos, K ;

Pisarski, RD .

PHYSICAL REVIEW D, 2004, 70 (03)

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