Orateur
Description
Since an absolute stable strange quark matter was conjectured [1], based on a simple model known as the MIT bag model [2], different versions of density dependent quark models were proposed, but they lack thermodynamic consistency [3]. By using a thermodynamically consistent quark matter model called equiparticle model [4], that is based on a density dependent mass, the confinement/deconfinement transition is studied. In order to do that, the model is modified by the introduction of a dependence on the traced Polyakov loop [5] at zero temperature. The results are presented once the grand canonical potential is obtained and suggests that the model is now capable of describing confined and deconfined thermodynamical phases.
REFERENCES
[1] E. Witten, Phys. Rev. D 30,272 (1984).
[2] CHODOS, Ao et al. New extended model of hadrons. Physical Review D, v. 9, n. 12, p. 3471, 1974.
[3] AGUDELO, David Felipe Tamayo. Matéria de Quarks à Temperatura Finita. 2013. Dissertação (Mestrado em Física) - Universidade Federal de Santa Catarina, Florianópolis, 2013.
[4] C. J. Xia, G. X. Peng, S. W. Chen, Z. Y. Lu, and J. F. Xu, Phys. Rev. D 89,105027 (2014).
[5] A. Polyakov, Phys. Lett. B 72, 477 (1978)
