Zobrazeno 1 - 10
of 236
pro vyhledávání: '"Pereira, Renan A."'
We propose the 3-momentum sphere intersection regularization applied to the one and two fermion line integrals at finite temperature and chemical potential. The quark-antiquark polarization function in this new regularization approach is equivalent t
Externí odkaz:
http://arxiv.org/abs/2310.05749
Autor:
Pereira, Renan Câmara, Costa, Pedro
Publikováno v:
Nuclear Physics B Volume 998, January 2024, 116415
In this work we introduce the concept of Cartan-Polyakov loops, a special subset of Polyakov loops in the fundamental representation of the $\mathrm{SU}(N_c)$ group, with charges $k=1,\ldots,(N_c-1)/2$. It constitutes a sufficient set of independent
Externí odkaz:
http://arxiv.org/abs/2304.14751
The possible existence of hybrid stars is studied using several multi-quark interaction channels. The hadronic phase consists of an equation of state (EoS) with presently accepted nuclear matter properties and the quark model is constrained by the va
Externí odkaz:
http://arxiv.org/abs/2212.01132
We determine, within a meta-model, the properties of the nuclear matter equation of state (EoS) that allow for a phase transition to deconfinement matter. It is shown that the properties that define the isoscalar channel are the ones that are affecte
Externí odkaz:
http://arxiv.org/abs/2112.05546
Publikováno v:
Phys. Rev. D 103, 123020 (2021)
We analyze the impact of several multi-quark interaction channels on the properties of hybrid stars. Four and eight vector interactions were included in the $SU(3)$ NJL model to describe the quark matter, and all vector like interactions were investi
Externí odkaz:
http://arxiv.org/abs/2105.06239
Autor:
Câmara Pereira, Renan, Costa, Pedro
Publikováno v:
In Nuclear Physics, Section B January 2024 998
Autor:
de Moraes, Nicolas Perciani, Pereira, Renan Amarante, da Silva, Thiago Vieira Chicuta, da Silva, Bruno Henrique Baena, de Assis, Gabrielle Policarpo, Campos, Tiago Moreira Bastos, Thim, Gilmar Patrocínio, de Vasconcelos Lanza, Marcos Roberto, de Freitas, Larissa, Rodrigues, Liana Alvares
Publikováno v:
In International Journal of Biological Macromolecules January 2024 254 Part 2
Publikováno v:
Phys. Rev. D 102, 054010 (2020)
The effect of conserved baryon, isospin and strangeness charges on the behavior of phase transitions in dense matter is studied. Baryonic matter is described within the three-flavor Polyakov$-$Nambu$-$Jona-Lasinio model and several charge fractions $
Externí odkaz:
http://arxiv.org/abs/2009.01781
Publikováno v:
Phys. Rev. D 102, 083030 (2020)
Higher-order repulsive interactions are included in the three-flavor NJL model in order to describe the quark phase of an hybrid star. The effect of 4-quark and 8-quark vector-isoscalar interactions in the stability of hybrid star configurations is a
Externí odkaz:
http://arxiv.org/abs/2008.12563
Publikováno v:
Eur. Phys. J. A 56, 214 (2020)
In this work, we explore the possible existence of several critical endpoints in the phase diagram of strongly interacting matter using an extended PNJL model with 't Hooft determinant and eight quark interactions in the up, down and strange sectors.
Externí odkaz:
http://arxiv.org/abs/2006.02385