Strong-interaction matter under extreme conditions from chiral quark models with nonlocal separable interactions

D Gómez Dumm, JP Carlomagno, NN Scoccola - Symmetry, 2021 - mdpi.com
We review the current status of the research on effective nonlocal NJL-like chiral quark
models with separable interactions, focusing on the application of this approach to the …

Exploring pathways to forming twin stars

M Naseri, G Bozzola, V Paschalidis - Physical Review D, 2024 - APS
A viable model for the dense matter equation of state above the nuclear saturation density
includes a hadron-to-quark phase transition at densities relevant to compact objects. In this …

Relativistic mean field model parametrizations in the light of GW170817, GW190814, and PSR

V Thakur, R Kumar, P Kumar, V Kumar, BK Agrawal… - Physical Review C, 2022 - APS
Three parametrizations DOPS1, DOPS2, and DOPS3 (named after the Department of
Physics Shimla) of the relativistic mean field model have been proposed with the inclusion of …

Magnetized hybrid stars: effects of slow and rapid phase transitions at the quark–hadron interface

M Mariani, MG Orsaria… - Monthly Notices of …, 2019 - academic.oup.com
We study the influence of strong magnetic fields in hybrid stars, composed by hadrons and a
pure quark matter core, and analyse their structure and stability as well as some possible …

Hybrid stars with sequential phase transitions: the emergence of the g2 mode

MC Rodríguez, IF Ranea-Sandoval… - … of Cosmology and …, 2021 - iopscience.iop.org
Neutron stars are the densest objects in the Universe, with M∼ 1.4 M⊙ and R∼ 12 km, and
the equation of state associated to their internal composition is still unknown. The extreme …

PNJL model at zero temperature: The three-flavor case

OA Mattos, T Frederico, CH Lenzi, M Dutra, O Lourenço - Physical Review D, 2021 - APS
We propose a three-flavor version of the Polyakov-Nambu-Jona-Lasino (PNJL) model at
zero temperature regime, by implementing a traced Polyakov loop (Φ) dependence in the …

Hybrid neutron stars with the Thomas-Fermi approximation and nonlocal Nambu–Jona-Lasinio model

J Ranjbar, M Ghazanfari Mojarrad - Physical Review C, 2021 - APS
We probe the outcomes of the baryon-quark phase transition in the hybrid neutron star
(HNS) structure with the help of the Gibbs and Maxwell constructions, adopting a …

Hadron–quark phase transition in the SU (3) local Nambu–Jona-Lasinio (NJL) model with vector interaction

G Alaverdyan - Symmetry, 2021 - mdpi.com
We study the hadron–quark hybrid equation of state (EOS) of compact-star matter. The
Nambu–Jona-Lasinio (NJL) local SU (3) model with vector-type interaction is used to …

Quark confinement in an equiparticle quark model: Application to stellar matter

I Marzola, SB Duarte, CH Lenzi, O Lourenço - Physical Review D, 2023 - APS
We perform an improvement in a thermodynamical consistent model with density-dependent
quark masses (mu, d, s′) by introducing effects of quark confinement/deconfinement phase …

Prospect of unraveling the first-order phase transition in neutron stars with and modes

P Thakur, S Chatterjee, KK Nath, R Mallick - Physical Review D, 2024 - APS
Quasinormal modes of neutron stars are an exciting prospect for analyzing the internal
composition of neutron stars and studying matter at high densities. In this work, we focus on …