Correlation between conserved charges in Polyakov–Nambu–Jona-Lasinio model with multiquark interactions

2010/10/31 by Abhijit Bhattacharyya, Paramita Deb, Anirban Lahiri +1 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.83.014011

published as Phys.Rev.D83:014011,2011

openalex publication_date 2011/01/20 · arxiv created 2011/01/27 · arxiv updated 2015/03/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We present a study of correlations among conserved charges like baryon number, electric charge and strangeness in the framework of 2+1 flavor Polyakov loop extended Nambu--Jona-Lasinio model at vanishing chemical potentials, up to fourth order. Correlations up to second order have been measured in lattice QCD, which compares well with our estimates given the inherent difference in the pion masses in the two systems. Possible physical implications of these correlations and their importance in understanding the matter obtained in heavy-ion collisions are discussed. We also present a comparison of the results with the commonly used unbound effective potential in the quark sector of this model.

Citations

• Susceptibilities and speed of sound from the Polyakov-Nambu-Jona-Lasinio model
• Baryon-Strangeness Correlations: A Diagnostic of Strongly Interacting Matter
• Chiral effective model with the Polyakov loop
• Fluctuations, strangeness, and quasiquarks in heavy-ion collisions from lattice QCD
• Polyakov loop in chiral quark models at finite temperature
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• QCD equation of state with almost physical quark masses
• Mesonic correlation functions at finite temperature and density in the Nambu–Jona-Lasinio model with a Polyakov loop
• Mesonic excitations of QGP: Study with an effective model
• QCD thermal phase transition in the presence of a small chemical potential
• Polyakov loop, diquarks, and the two-flavor phase diagram
• Phase diagram for the Nambu–Jona-Lasinio model with ’t Hooft and eight-quark interactions

Cited by

• Quark number fluctuations at finite temperature and finite chemical potential via the Dyson-Schwinger equation approach