Restoration of chiral symmetry in cold and dense Nambu-Jona-Lasinio model with tensor renormalization group [PDF]
We analyze the chiral phase transition of the Nambu-Jona-Lasinio model in the cold and dense region on the lattice, developing the Grassmann version of the anisotropic tensor renormalization group algorithm.
Shinichiro Akiyama+3 more
doaj +2 more sources
Double parton distributions in the pion in the Nambu–Jona-Lasinio model [PDF]
Two-parton correlations in the pion, a non perturbative information encoded in double parton distribution functions, are investigated in the Nambu–Jona-Lasinio model.
Aurore Courtoy+2 more
doaj +2 more sources
Inverse magnetic catalysis in Nambu–Jona-Lasinio model beyond mean field [PDF]
We study inverse magnetic catalysis in the Nambu–Jona-Lasinio model beyond mean field approximation. The feed-down from mesons to quarks is embedded in an effective coupling constant at finite temperature and magnetic field.
Shijun Mao
doaj +2 more sources
QCD phase diagram in a magnetized medium from the chiral symmetry perspective: the linear sigma model with quarks and the Nambu–Jona-Lasinio model effective descriptions [PDF]
We review the main features of the QCD phase diagram description, at finite temperature, baryon density and in the presence of a magnetic field, from the point of view of effective models, whose main ingredient is chiral symmetry.
A. Ayala+3 more
semanticscholar +1 more source
Recent progresses on QCD phases in a strong magnetic field: views from Nambu–Jona-Lasinio model [PDF]
In this review, we summarize recent progress on the possible phases of quantum chromodynamics (QCD) in the presence of a strong magnetic field, mainly from the views of the chiral effective Nambu–Jona-Lasinio model.
G. Cao
semanticscholar +1 more source
Causality violation and the speed of sound of hot and dense quark matter in the Nambu–Jona-Lasinio model [PDF]
The Nambu--Jona-Lasinio model is widely used to study strong-interaction phenomena in vacuum and quark matter. Since the model is nonrenormalizable, one needs to work within a specific regularization scheme to obtain finite results.
Arthur E. B. Pasqualotto+4 more
semanticscholar +1 more source
Inhomogeneous phases in the 3+1-dimensional Nambu-Jona-Lasinio model and their dependence on the regularization scheme [PDF]
In this work we study the $3+1$-dimensional Nambu-Jona-Lasinio (NJL) model in the mean field-approximation. We carry out calculations using five different regularization schemes (two continuum and three lattice regularization schemes) with particular ...
Laurin Pannullo, M. Wagner, Marc Winstel
semanticscholar +1 more source
Color-flavor dependence of the Nambu-Jona-Lasinio model and QCD phase diagram [PDF]
We study the dynamical chiral symmetry breaking/restoration for various numbers of light quarks flavors and colors using the Nambu-Jona-Lasinio (NJL) model of quarks in the Schwinger-Dyson equation framework, dressed with a color-flavor dependence of ...
A. Ahmad, Ali Murad
semanticscholar +1 more source
Strangeness content of the pion in the U(3) Nambu-Jona-Lasinio model [PDF]
The Nambu-Jona-Lasinio model is considered with flavor-dependent coupling constants $G_{ij} \left[ ( \bar{\psi} \lambda_i \psi ) ( \bar{\psi} \lambda_j \psi ) + ( \bar{\psi} i\gamma_5 \lambda_i \psi ) ( \bar{\psi} i \gamma_5\lambda_j \psi ) \right ...
F. Braghin
semanticscholar +1 more source
Bayesian analysis of the properties of hybrid stars with the Nambu–Jona-Lasinio model [PDF]
The possible presence of deconfined matter in the cores of massive neutron stars is the subject of a large debate. In this context, it is important to set limits on the size and characteristics of a hypothetical quark core compatible with the present ...
Antoine Pfaff, H. Hansen, F. Gulminelli
semanticscholar +1 more source