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7 papers · 1 filter
D mesons at finite temperature and density in the PNJL model
D. Blaschke, P. Costa, Yu. L. Kalinovsky
We study D meson resonances in hot, dense quark matter within the NJL model and its Polyakov-loop extension. We show that the mass splitting between D^+ and D^- mesons is moderate,…
What Does Low Energy Physics Tell Us About The Zero Momentum Gluon Propagator
Pedro Costa, O. Oliveira, P. J. Silva
The connection between QCD, a nonlocal Nambu--Jona-Lasinio type model and the Landau gauge gluon propagator is explored. This two point function is parameterized by a functional fo…
Phase diagram and critical properties within an effective model of QCD: the Nambu-Jona-Lasinio model coupled to the Polyakov loop
Pedro Costa, M. C. Ruivo, C. A. de Sousa +1
We investigate the phase diagram of the so-called Polyakov--Nambu--Jona-Lasinio model at finite temperature and non-zero chemical potential with three quark flavors. Chiral and dec…
How parameters and regularization affect the PNJL model phase diagram and thermodynamic quantities
Pedro Costa, H. Hansen, M. C. Ruivo +1
We explore the phase diagram and the critical behavior of QCD thermodynamic quantities in the context of the so-called Polyakov--Nambu--Jona-Lasinio model. We show that this improv…
Scalar-pseudoscalar meson spectrum in SU(3) PNJL model
Pedro Costa, M. C. Ruivo, C. A. de Sousa +2
We investigate the modifications of mesonic properties in a hot medium having in mind to use the mesonic modes as a tool to analyze the restoration of chiral and axial symmetries i…
Scalar-pseudoscalar meson behavior and restoration of symmetries in SU(3) PNJL model
Pedro Costa, M. C. Ruivo, C. A. de Sousa +2
The modification of mesonic observables in a hot medium is analyzed as a tool to investigate the restoration of chiral and axial symmetries in the context of the Polyakov-loop exte…