Flavor dependence of baryon melting temperature in effective models of QCD

Torres-Rincón, Juan M.; Sintes, Benjamin; Aichelin, Joerg

doi:10.1103/physrevc.91.065206

Cited by 33 publications

(89 citation statements)

References 41 publications

(102 reference statements)

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“…Table 1. Mott (or melting) temperatures of several mesons and baryons calculated in the PNJL model [7]. Several conclusions can be extracted from Table 1 and Fig.…”

Section: Melting Temperature Hierarchy In the Pnjl Modelmentioning

confidence: 84%

“…Notice that the η is unstable already at T = 0 because its vacuum mass (m η = 987 MeV, according to our calculation in Ref. [7]) is larger than the sum of its quark plus antiquark masses. In addition, the baryons masses versus temperature (up to the Mott temperature) are plotted in Fig.…”

Section: Melting Temperature Hierarchy In the Pnjl Modelmentioning

confidence: 99%

“…The dynamical degrees of freedom are N f = 3 massive quarks. Nevertheless, colorless states like mesons and baryons can also be addressed in this model with the use of few-body techniques [7]. Mesons are modeled as quark-antiquark bound states which are stable in vacuum.…”

Section: Melting Temperature Hierarchy In the Pnjl Modelmentioning

confidence: 99%

“…In Ref. [7] we computed the masses and Mott temperatures of mesons and baryons in several flavor/spin channels. A summary of the melting temperatures is shown in Table 1.…”

Section: Melting Temperature Hierarchy In the Pnjl Modelmentioning

confidence: 99%

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Melting and freeze-out conditions of hadrons in a thermal medium

et al. 2018

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Abstract. We describe two independent frameworks which provide unambiguous determinations of the deconfinement and the decoupling conditions of a relativistic gas at finite temperature. First, we use the Polyakov-Nambu-Jona-Lasinio model to compute meson and baryon masses at finite temperature and determine their melting temperature as a function of their strangeness content. Second, we analyze a simple expanding gas within a Friedmann-Robertson-Walker metric, which admits a well-defined decoupling mechanism. We examine the decoupling time as a function of the particle mass and cross section. We find evidences of an inherent dependence of the hadronization and freeze-out conditions on flavor, and on mass and cross section, respectively.

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“…Table 1. Mott (or melting) temperatures of several mesons and baryons calculated in the PNJL model [7]. Several conclusions can be extracted from Table 1 and Fig.…”

Section: Melting Temperature Hierarchy In the Pnjl Modelmentioning

confidence: 84%

Section: Melting Temperature Hierarchy In the Pnjl Modelmentioning

confidence: 99%

Section: Melting Temperature Hierarchy In the Pnjl Modelmentioning

confidence: 99%

“…In Ref. [7] we computed the masses and Mott temperatures of mesons and baryons in several flavor/spin channels. A summary of the melting temperatures is shown in Table 1.…”

Section: Melting Temperature Hierarchy In the Pnjl Modelmentioning

confidence: 99%

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Melting and freeze-out conditions of hadrons in a thermal medium

et al. 2018

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“…We consider the Lagrangian of the PNJL model [7][8][9][10][11]23] with (color neutral) pseudoscalar and scalar interactions (neglecting the vector and axial-vector vertices for simplic-ity),…”

Section: A Pnjl Lagrangian and Grand-canonical Potential At O(n C )mentioning

confidence: 99%

Equation of state of a quark-meson mixture in the improved Polyakov–Nambu–Jona-Lasinio model at finite chemical potential

Torres-Rincón

Aichelin

2017

Phys. Rev. C

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We study the equation of state of QCD using an improved version of the threeflavor Polyakov-Nambu-Jona-Lasinio model beyond the mean-field approximation.It incorporates the effects of unquenched quarks into the Polyakov-loop effective potential, as well as mesonic contributions to the grand-canonical potential. We study in full detail the calculation of the thermodynamical potential in this approach and compare the resulting pressure and entropy density with the most-recent lattice-QCD calculations at zero baryochemical potential. Finally, we present some exploratory results at finite chemical potential which include the phase diagram of the model, the quark and meson masses, and finally, the thermodynamical pressure. Contents

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On the phase diagram of the Nambu–Jona‐Lasinio Lagrangian

Aichelin

Torres-Rincón

2019

Astron Nachr

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The (Polyakov) Nambu-Jona-Lasinio approach is an effective theory for low energies, which shares with Quantumchromodynamics the global symmetries. This approach is easy to handle and allows for analytical results for many of the observables that are of interest for the studies of ultrarelativistic heavy ion collisions but also for the merger and collisions of neutron stars. It allows in particular to study the density and temperature dependence of quark masses and of the masses of mesons and baryons as well as the chiral phase transition. In recent times, this transition came in the focus of interest because it is expected that the upcoming experiments at the Fair (Germany) and Nuclotron-based Ion Collider fAcility (Russia) facilities will observe a Quark-Gluon-Plasma at finite baryon chemical potential. KEYWORDSquark gluon plasma -neutron star -Nambu-Jona-Lasinio

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Flavor dependence of baryon melting temperature in effective models of QCD

Cited by 33 publications

References 41 publications

Melting and freeze-out conditions of hadrons in a thermal medium

Melting and freeze-out conditions of hadrons in a thermal medium

Equation of state of a quark-meson mixture in the improved Polyakov–Nambu–Jona-Lasinio model at finite chemical potential

On the phase diagram of the Nambu–Jona‐Lasinio Lagrangian

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