QCD phase diagram using PNJL model with eight-quark interactions

被引：3

作者：

Deb, Paramita ^{[1
]}

Bhattacharyya, Abhijit ^{[1
]}

Ghosh, Sanjay K. ^{[2
]}

Ray, Rajarshi ^{[2
]}

Lahiri, Anirban ^{[2
]}

机构：

[1] Univ Calcutta, Dept Phys, Kolkata 700009, India

[2] Bose Inst, Ctr Astroparticle Phys & Space Sci, Kolkata 700091, India

来源：

NUCLEAR PHYSICS A | 2011年 / 862-63卷

关键词：

Phase Diagram; CEP; Fluctuations; Kurtosis;

D O I：

10.1016/j.nuclphysa.2011.05.068

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We present the phase diagram and the fluctuations of different conserved charges like quark number, charge and strangeness at vanishing chemical potential for the 2+1 flavor Polyakov Loop extended Nambu-Jona-Lasinio model with eight-quark interaction terms using three-momentum cutoff regularisation. The main effect of the higher order interaction term is to shift the critical end point to the lower value of the chemical potential and higher value of the temperature. The fluctuations show good qualitative agreement with the lattice data.

引用

页码：267 / 270

页数：4

共 17 条

[1]

BHATTACHARYYA A, 2001, PHYS REV D, V82, P4028

[2]

BHATTACHARYYA A, ARXIV10102394HEPPH

[3] Investigation of the phase diagram and bulk thermodynamic properties using the Polyakov-Nambu-Jona-Lasinio model with eight-quark interactions [J].

Bhattacharyya, Abhijit ;

Deb, Paramita ;

Ghosh, Sanjay K. ;

Ray, Rajarshi .

PHYSICAL REVIEW D, 2010, 82 (01)

[4]

BORSANYI S, HEPLAT10072580V1

[5] QCD equation of state with almost physical quark masses [J].

Cheng, M. ;

Christ, N. H. ;

Datta, S. ;

Van der Heide, J. ;

Jung, C. ;

Karsch, F. ;

Kaczmarek, O. ;

Laermann, E. ;

Mawhinney, R. D. ;

Miao, C. ;

Petreczky, P. ;

Petrov, K. ;

Schmidt, C. ;

Soeldner, W. ;

Umeda, T. .

PHYSICAL REVIEW D, 2008, 77 (01)

[6] Baryon number, strangeness, and electric charge fluctuations in QCD at high temperature [J].

Cheng, M. ;

Hegde, P. ;

Jung, C. ;

Karsch, F. ;

Kaczmarek, O. ;

Laermann, E. ;

Mawhinney, R. D. ;

Miao, C. ;

Petreczky, P. ;

Schmidt, C. ;

Soeldner, W. .

PHYSICAL REVIEW D, 2009, 79 (07)

[7] Mesonic excitations of QGP: Study with an effective model [J].

Deb, Paramita ;

Bhattacharyya, Abhijit ;

Datta, Saumen ;

Ghosh, Sanjay K. .

PHYSICAL REVIEW C, 2009, 79 (05)

[8]

EJIRI S, ARXIV07100653HEPLAT

[9]

EJIRI S, ARXIV07063549HEPLAT

[10]

Fodor Z, 2004, PROG THEOR PHYS SUPP, P86, DOI 10.1143/PTPS.153.86

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