Quark matter under strong magnetic fields in the Nambu–Jona-Lasinio model

Menezes, D. P.; Pinto, Marcus Benghi; Avancini, S. S.; Martínez, A.; Providência, Constança

doi:10.1103/physrevc.79.035807

Cited by 272 publications

(327 citation statements)

References 58 publications

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“…The flavor contributions from vacuum Ω f vac , medium Ω f med , and magnetic field Ω f mag [51,52] are given by…”

Section: Acknowledgmentsmentioning

confidence: 99%

Influence of the vector interaction and an external magnetic field on the isentropes near the chiral critical end point

Costa

2016

Phys. Rev. D

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The location of the critical end point (CEP) and the isentropic trajectories in the QCD phase diagram are investigated. We use the (2 þ 1) Nambu-Jona-Lasinio model with the Polyakov loop coupling for different scenarios, namely by imposing zero strange quark density, which is the case in the ultrarelativistic heavy ion collisions, and β equilibrium. The influence of strong magnetic fields and of the vector interaction on the isentropic trajectories around the CEP is discussed. It is shown that the vector interaction and the magnetic field, having opposite effects on the first-order transition, affect the isentropic trajectories differently: as the vector interaction increases, the first-order transition becomes weaker and the isentropes become smoother; when a strong magnetic field is considered, the first-order transition is strengthened and the isentropes are pushed to higher temperatures. No focusing of isentropes in region towards the CEP is seen.

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“…The flavor contributions from vacuum Ω f vac , medium Ω f med , and magnetic field Ω f mag [51,52] are given by…”

Section: Acknowledgmentsmentioning

confidence: 99%

Influence of the vector interaction and an external magnetic field on the isentropes near the chiral critical end point

Costa

2016

Phys. Rev. D

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“…where the vacuum Ω vac f , the magnetic Ω mag f , the medium contributions Ω med f and the quark condensates hq f q f i have been evaluated with great detail in [41,42].…”

Section: Model and Formalismmentioning

confidence: 99%

Phase transition and critical end point driven by an external magnetic field in asymmetric quark matter

et al. 2014

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The location of the critical end point (CEP) in the QCD phase diagram is determined under different scenarios. The effect of strangeness, isospin/charge asymmetry and an external magnetic field is investigated. The discussion is performed within the 2 þ 1 flavor Nambu-Jona-Lasinio model with Polyakov loop. It is shown that isospin asymmetry shifts the CEP to larger baryonic chemical potentials and smaller temperatures. At large asymmetries the CEP disappears. However, a strong enough magnetic field drives the system into a first order phase transition.

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“…A strong magnetic field makes the overall EOS softer. However, due to the positive contribution of the magnetic field pressure to the total EOS, an increase is of the maximum mass is predicted [16,20,22,23].…”

Section: Introductionmentioning

confidence: 99%

Warm and dense stellar matter under strong magnetic fields

2011

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We investigate the effects of strong magnetic fields on the equation of state of warm stellar matter as it may occur in a protoneutron star. Both neutrino free and neutrino trapped matter at a fixed entropy per baryon are analyzed. A relativistic meanfield nuclear model, including the possibility of hyperon formation, is considered. A density dependent magnetic field with the magnitude 10 15 G at the surface and not more than 3 × 10 18 G at the center is considered. The magnetic field gives rise to a neutrino suppression, mainly at low densities, in matter with trapped neutrinos. It is shown that an hybrid protoneutron star will not evolve to a low mass blackhole if the magnetic field is strong enough and the magnetic field does not decay. However, the decay of the magnetic field after cooling may give rise to the formation of a low mass blackhole.

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Quark matter under strong magnetic fields in the Nambu–Jona-Lasinio model

Cited by 272 publications

References 58 publications

Influence of the vector interaction and an external magnetic field on the isentropes near the chiral critical end point

Influence of the vector interaction and an external magnetic field on the isentropes near the chiral critical end point

Phase transition and critical end point driven by an external magnetic field in asymmetric quark matter

Warm and dense stellar matter under strong magnetic fields

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