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The effect of the isospin/charge asymmetry and an external magnetic field in the location of the critical end point (CEP) in the QCD phase diagram is investigated. By using the 2+1 flavor Nambu--Jona-Lasinio model with Polyakov loop (PNJL),…

高能物理 - 唯象学 · 物理学 2015-08-10 Pedro Costa , Márcio Ferreira , Constança Providência , Hubert Hansen , Débora P. Menezes

The effect of an external magnetic field in QCD phase diagram, namely, in the the location of the critical end point (CEP) is investigated. Using the 2+1 flavor Nambu--Jona-Lasinio model with Polyakov loop, it is shown that when an external…

高能物理 - 唯象学 · 物理学 2015-09-04 Márcio Ferreira , Pedro Costa , Constança Providência

In this work we examine possible effects of an external magnetic field in the strongly interacting matter phase diagram. The study is performed using the Polyakov-Nambu-Jona-Lasinio model. Possible consequences of the inverse magnetic…

高能物理 - 唯象学 · 物理学 2022-09-21 Pedro Costa , Márcio Ferreira , Constança Providência

The magnetized phase diagram for three-flavor quark matter is studied within the Polyakov extended Nambu--Jona-Lasinio model. The order parameters are analyzed with special emphasis on the strange quark condensate. We show that the presence…

高能物理 - 唯象学 · 物理学 2018-02-07 Márcio Ferreira , Pedro Costa , Constança Providência

The location of the critical end point (CEP) and the isentropic trajectories in the QCD phase diagram are investigated. We use the (2+1) Nambu$-$Jona-Lasinio model with the Polyakov loop coupling for different scenarios, namely by imposing…

核理论 · 物理学 2016-10-21 Pedro Costa

We study the $T {-} {\mu}$ phase diagram of quark matter under the influence of a strong uniform magnetic field in the framework of a nonlocal extension of the Polyakov Nambu Jona Lasinio model (PNJL). The existence of a critical end point…

高能物理 - 唯象学 · 物理学 2023-10-10 J. P. Carlomagno , S. A. Ferraris , D. Gómez Dumm , A. G. Grunfeld

We investigate the phase diagram of the so-called Polyakov--Nambu--Jona-Lasinio model at finite temperature and nonzero chemical potential with three quark flavors. Chiral and deconfinement phase transitions are discussed, and the relevant…

高能物理 - 唯象学 · 物理学 2015-08-10 Pedro Costa , C. A. de Sousa , M. C. Ruivo , H. Hansen

We study the phase diagram in the $T-\mu$ plane for quark matter under the influence of a strong uniform magnetic field $\vec{B}$, in the framework of a non-local extension of the two-flavor Polyakov Nambu-Jona-Lasinio model. We analyze the…

高能物理 - 唯象学 · 物理学 2023-04-05 J. P. Carlomagno , S. A. Ferraris , D. Gómez Dumm , A. G. Grunfeld

We use the three-flavor Nambu--Jona-Lasinio model, which includes strangeness and quark physical masses in the mean field approximation, to investigate the influence of strong magnetic fields on the QCD phase diagram covering the whole…

高能物理 - 唯象学 · 物理学 2015-06-04 Sidney S. Avancini , Débora P. Menezes , Marcus B. Pinto , Constança Providência

Using the 2+1 flavor Nambu--Jona-Lasinio (NJL) model with the Polyakov loop, we determine the structure of the QCD phase diagram in an external magnetic field. Beyond the usual NJL model with constant couplings, we also consider a variant…

高能物理 - 唯象学 · 物理学 2017-12-25 Márcio Ferreira , Pedro Costa , Constança Providência

We study the phase diagram for strongly interacting matter using the 't Hooft determinant extended Nambu--Jona-Lasinio model with a Polyakov loop in the light and strange quark sectors (\emph{up}, \emph{down} and \emph{strange}) focusing on…

高能物理 - 唯象学 · 物理学 2021-04-13 João Moreira , Pedro Costa , Tulio E. Restrepo

The phase diagram of strong interaction matter is analyzed utilizing the Nambu--Jona-Lasinio model. Special emphasis is placed on its dependence on an external magnetic field and isospin chemical potential. Using flavor mixing induced by…

高能物理 - 唯象学 · 物理学 2017-03-22 Stefan Rechenberger

Employing the Polyakov extended Nambu-Jona-Lasinio model, we determine the net-baryon number fluctuations of magnetized three-flavor quark matter. We show that the magnetic field changes the nature of the strange quark transition from…

高能物理 - 唯象学 · 物理学 2018-10-23 Márcio Ferreira , Pedro Costa , Constança Providência

The effect of a strong magnetic field on the location of the critical end point (CEP) in the QCD phase diagram is discussed under different scenarios. In particular, we consider the contribution of the vector interaction and take into…

高能物理 - 唯象学 · 物理学 2015-09-01 Pedro Costa , Márcio Ferreira , Débora P. Menezes , João Moreira , Constança Providência

The QCD phase diagram in the temperature versus quark chemical potential plane is studied in the presence of a magnetic field, using the linear sigma model coupled to quarks. It is shown that the decrease of the couplings with increasing…

高能物理 - 唯象学 · 物理学 2015-12-02 Alejandro Ayala , C. A. Dominguez , L. A. Hernandez , M. Loewe , R. Zamora

We investigate the QCD phase diagram of isospin asymmetric matter using the Polyakov loop extended quark meson (PQM) model with vector interaction. The critical point temperature is found to decrease in isospin asymmetric matter and…

In this work, we discuss the deconfinement phase transition to quark matter in hot/dense matter. We {examine} the effect that different charge fractions, isospin fractions, net strangeness, and chemical equilibrium with respect to leptons…

The phase structure of the Polyakov loop-extended chiral quark-meson model is explored in a nonperturbative approach, beyond a mean-field approximation, in the presence of a magnetic field. We show that by including meson fluctuations one…

高能物理 - 唯象学 · 物理学 2013-05-30 V. Skokov

It is believed that there exists a rich phase structure of quantum chromodynamics (QCD) at finite temperature and baryon density, namely, the deconfinement process from hadron gas to quark-gluon plasma, the transition from chiral symmetry…

核理论 · 物理学 2013-07-09 Rafael Cavagnoli , Debora P. Menezes , Constança Providência

The QCD phase transitions are investigated in the presence of an external magnetic field in the Polyakov improved Nambu--Jona-Lasinio (PNJL) model. We detailedly analyze that how the filling of multiple Landau levels by light (up and down)…

高能物理 - 唯象学 · 物理学 2019-07-24 Guo-yun Shao , Wei-bo He , Xue-yan Gao
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