| Full text | |
| Author(s): |
Mattos, O. A.
;
Lourenco, O.
;
Frederico, T.
;
Guimaraes, V
;
Genezini, F
;
Lubian, J
;
Assuncao, M
;
Delgado, A
;
Trevisan, LA
Total Authors: 9
|
| Document type: | Journal article |
| Source: | WAKE CONFERENCE 2021; v. 1291, p. 4-pg., 2019-01-01. |
| Abstract | |
The Polyakov-Nambu-Jona-Lasinio (PNJL) model is a model that incorporates confinement effects in the Nambu-Jona-Lasinio (NJL) model through the addition of the Polyakov loop (Phi). These effects are studied at finite temperature regime. However, at zero temperature its modified Fermi-Dirac distributions become step functions and Phi disappears from the equations of state (EOS), as well as the Polyakov potential, leading the model to the conventional form of the NJL model. In this work we propose a variation of the PNJL model where all the couplings depend on Phi with the constraint that the interactions vanish at the deconfinement phase where Phi reaches its maximum value and the quarks behave as free particles. In this approach, coupling constants of original PNJL model become now dependent on Phi. As a consequence, all equations of state present a Phi dependence even at zero temperature regime. The thermodynamics of this new model is discussed. (AU) | |
| FAPESP's process: | 17/05660-0 - Theoretical studies of the structure and reactions of exotic nuclei and many-body systems |
| Grantee: | Brett Vern Carlson |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 13/26258-4 - Superdense matter in the universe |
| Grantee: | Manuel Máximo Bastos Malheiro de Oliveira |
| Support Opportunities: | Research Projects - Thematic Grants |