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QCD chiral symmetry restoration with a large number of quarks in a model with a confining propagator and dynamically massive gluons
(Elsevier B.V., 2015-05-11)
Considering a QCD chiral symmetry breaking model where the gap equation contains an effective confining propagator and a dressed gluon propagator with a dynamically generated mass, we verify that the chiral symmetry is ...
Chiral symmetry restoration and pion properties in a q-deformed NJL model
(Sociedade Brasileira de Física, 2006)
Chiral-symmetry restoration in clustered hadronic matter
(Springer, 2003-11-01)
Chiral-symmetry restoration is usually discussed in the context of quark matter, a system of deconfined quarks. However, many systems like stable nuclei and neutron stars have quarks confined within nucleons. In the present ...
Strong magnetic fields in nonlocal chiral quark models
(American Physical Society, 2017-12)
We study the behavior of strongly interacting matter under a uniform intense external magnetic field in the context of nonlocal extensions of the Polyakov-Nambu-Jona-Lasinio model. A detailed description of the formalism ...
Decoupling of quark condensate from the effective nucleon mass at high density (ϱ) and temperature (T)
(1995-11-16)
It is found that the quark condensate 〈qq〉, instead of decreasing at high ρ{variant}, as commonly expected, starts to increase after a certain density (∼ 1.5ρ{variant}0 - in standard relativistic nuclear matter models. ...
Order of the chiral phase transition in the σ models
(Universidad Nacional de Colombia, Bogotá, 2005)
La transición en la fase quiral a una cierta temperatura crítica es una restauración del mecanismo de la simetría quiral, rota debido a la masa finita de los quarks y los mesones. La transición puede ser estudiada a través ...
Influence of a Chern-Simons term in the dynamical fermion masses in reduced or pseudo QED
(Amer Physical Soc, 2020-11-24)
Mixed-dimensional theories have been used to describe condensed matter systems where fermions are constrained to a plane while the gauge fields they interact with remain four dimensional. Here we investigate dynamical ...
Influence of a Chern-Simons term in the dynamical fermion masses in reduced or pseudo QED
(2020-11-24)
Mixed-dimensional theories have been used to describe condensed matter systems where fermions are constrained to a plane while the gauge fields they interact with remain four dimensional. Here we investigate dynamical ...
Comparison between the continuum threshold and the Polyakov loop as deconfinement order parameters
(American Physical Society, 2017-02)
We study the relation between the continuum threshold s0 within finite energy sum rules and the trace of the Polyakov loop Φ in the framework of a nonlocal SU(2) chiral quark model, establishing a contact between both ...
Quark matter in a QCD Coulomb gauge quark model
(Sociedade Brasileira de Física, 2005-09-01)
In this communication we present results of a study of chiral symmetry in quark matter using an effective Coulomb gauge QCD Hamiltonian. QCD in Coulomb gauge is convenient for a variational approach based on a quasiparticle ...