Susceptibilities with multiquark interactions in the Polyakov–Nambu–Jona-Lasinio model

Bhattacharyya, Abhijit; Deb, Paramita; Lahiri, Anirban; Ray, Rajarshi

doi:10.1103/physrevd.82.114028

Cited by 54 publications

(54 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The differences between Θ µµ and C V obtained in the PNJL model and those on the lattice indicate that the crossover in the model is somewhat sharper than that on the lattice. However the size of the peak obtained here is substantially reduced compared to what was obtained with the earlier parametrizations [50], and remains below the SB limit..…”

Section: Thermodynamicscontrasting

confidence: 57%

Reparametrizing the Polyakov–Nambu–Jona-Lasinio model

et al. 2017

Self Cite

View full text Add to dashboard Cite

The Polyakov−Nambu−Jona-Lasinio model has been quite successful in describing various qualitative features of observables for strongly interacting matter, that are measurable in heavy-ion collision experiments. The question still remains on the quantitative uncertainties in the model results. Such an estimation is possible only by contrasting these results with those obtained from first principles using the lattice QCD framework. Recently a variety of lattice QCD data were reported in the realistic continuum limit. Here we make a first attempt at reparametrizing the model so as to reproduce these lattice data. We find excellent quantitative agreement for the equation of state. Certain discrepancies in the charge and strangeness susceptibilities as well as baryon-charge correlation still remain. We discuss their causes and outline possible directions to remove them.

show abstract

Section: Thermodynamicscontrasting

confidence: 57%

Reparametrizing the Polyakov–Nambu–Jona-Lasinio model

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…Similar features for diagonal correlators were discussed by us in Ref. [49]. For c BS 13 the strange sector completely overwhelms the light quark sector as expected, and so there is only one peak at 1.5T c .…”

Section: Resultssupporting

confidence: 58%

“…For 2+1 flavors, fluctuations have been recently measured in LQCD [44][45][46] as well as in PNJL model both with the usual unbound effective potential (UEP) [18,47,48] and with the bound effective potential (BEP) [49]. Similar calculations have been carried out in Polyakov loop coupled quark-meson (PQM) model [50][51][52][53] and its renormalization group improved version [54].…”

Section: Introductionmentioning

confidence: 63%

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

et al. 2011

Self Cite

View full text Add to dashboard Cite

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 comparison of the results with the commonly used unbound effective potential in the quark sector of this model.

show abstract

“…In addition to lattice QCD and HTLpt, there are also various model calculations on the market. For example, the Nambu-Jona-Lasinio (NJL) [68,69], Polyakov-loop extended NambuJona-Lasinio (PNJL) [70][71][72][73][74][75][76][77][78][79][80], quasi-particle models [81][82][83][84][85], Polyakov-loop extended quark meson (PQM) model [86][87][88] have been used to calculate various thermodynamic functions. There have also been works which apply Pade and Borel-Pade methods to the perturbative QCD pressure [90][91][92].…”

Section: Jhep05(2014)027mentioning

confidence: 99%

Three-loop HTLpt thermodynamics at finite temperature and chemical potential

Haque

Bandyopadhyay

Andersen

et al. 2014

J. High Energ. Phys.

217

181

View full text Add to dashboard Cite

We calculate the three-loop thermodynamic potential of QCD at finite temperature and chemical potential(s) using the hard-thermal-loop perturbation theory (HTLpt) reorganization of finite temperature and density QCD. The resulting analytic thermodynamic potential allows us to compute the pressure, energy density, and entropy density of the quark-gluon plasma. Using these we calculate the trace anomaly, speed of sound, and second-, fourth-, and sixth-order quark number susceptibilities. For all observables considered we find good agreement between our three-loop HTLpt calculations and available lattice data for temperatures above approximately 300 MeV.

show abstract

Susceptibilities with multiquark interactions in the Polyakov–Nambu–Jona-Lasinio model

Cited by 54 publications

References 55 publications

Reparametrizing the Polyakov–Nambu–Jona-Lasinio model

Reparametrizing the Polyakov–Nambu–Jona-Lasinio model

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

Three-loop HTLpt thermodynamics at finite temperature and chemical potential

Contact Info

Product

Resources

About