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Related papers: Hybrid Stars using the Quark-Meson Coupling and Pr…

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We investigate the properties of hybrid star and the mixed phase core to explore the radius ratio of the mixed phase in hybrid star. In the context of observed massive neutron stars (NSs), we examine the internal structure, phase…

Nuclear Theory · Physics 2026-02-04 Xuhao Wu , Peng-Cheng Chu , Min Ju , He Liu

The hadron-quark phase transition in the core of heavy neutron star (NS) has been studied. For the hadronic sector, we have used the lowest-order constraint variational method by employing $ AV_{18} $, $ AV_{14}$, $ UV_{14}$, and Reid $ 68…

Nuclear Theory · Physics 2025-09-12 S. Khanmohamadi , H. R. Moshfegh , S. Atashbar Tehrani

In this paper, we investigate the structure of hybrid stars consisting of hadrons (neutrons, protons, sigmas, lambdas), leptons (electrons, muons), and quarks (up, down, strange). We use a relativistic mean-field (RMF) model namely the…

Nuclear Theory · Physics 2025-09-11 Reza Karimi , H. R. Moshfegh

We perform a physics-informed Bayesian analyses of the equation of state of hybrid neutron stars that incorporates color-flavor-locked quark matter modeled by a three-flavor non-local Nambu-Jona-Lasinio framework with vector repulsion and…

Nuclear Theory · Physics 2025-09-03 Alexander Ayriyan , Oleksii Ivanytskyi , David Blaschke

We study rotating hybrid stars, with particular emphasis on the effect of spin on the deconfinement phase transition and star properties. Our analysis is based on a hybrid equation of state with a phase transition from hadronic matter…

Elementary particles such as quarks and gluons are expected to be fundamental degrees of freedom at ultra high temperatures or densities, while natural phenomena in our daily lives are described in terms of hadronic degrees of freedom.…

High Energy Astrophysical Phenomena · Physics 2024-12-05 Reiko Harada , Kipp Cannon , Kenta Hotokezaka , Koutarou Kyutoku

We present preliminary results of the study of intense magnetic fields effects on hybrid stars. For the description of the hadronic phase, we use the relativistic mean field approximation. For the quark matter phase, we employ the Field…

High Energy Astrophysical Phenomena · Physics 2019-02-11 Mauro Mariani , Milva G. Orsaria , Ignacio F. Ranea-Sandoval , Octavio M. Guilera

We investigate the equation of state(EoS) and the effect of the hadron-quark phase transition of strong interaction matter in compact stars. The hadron matter is described with the relativistic mean field theory,and the quark matter is…

High Energy Physics - Phenomenology · Physics 2018-01-31 Zhan Bai , Huan Chen , Yu-xin Liu

We study the possibility that the transition from hadron matter to quark matter at vanishing temperatures proceeds via crossover, similar to the crossover behavior found with lattice QCD studies at high temperatures. The purpose is to…

Nuclear Theory · Physics 2015-09-21 D. E. Alvarez-Castillo , S. Benic , D. Blaschke , R. Lastowiecki

A thorough knowledge of the quark-hadron phase transition in hot and dense matter is essential for constraining the equation of state of neutron stars. In this work, we study the thermodynamics of the quark-hadron mixed phase at finite…

Nuclear Theory · Physics 2026-05-07 Suman Pal , Gargi Chaudhuri

We study the hadron-quark phase transition in the interior of protoneutron stars. For the hadronic sector, we use a microscopic equation of state involving nucleons and hyperons derived within the finite-temperature…

Astrophysics · Physics 2017-08-23 O. E. Nicotra

We study the properties of strange quark matter in equilibrium with normal nuclear matter. Instead of using the conventional bag model in quark sector, we achieve the confinement by a density-dependent quark mass derived from in-medium…

Astrophysics · Physics 2008-11-26 G. X. Peng , A. Li , U. Lombardo

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…

Nuclear Theory · Physics 2021-07-13 Márcio Ferreira , Renan Câmara Pereira , Constança Providência

Ab initio methods using weakly interacting nucleons give a good description of condensed nuclear matter up to densities comparable to the nuclear saturation density. At higher densities palpable strong interactions between overlapping…

High Energy Physics - Phenomenology · Physics 2021-04-14 Niko Jokela , Matti Jarvinen , Govert Nijs , Jere Remes

The thermodynamic properties of high temperature and high density QCD-matter are explored within the Chiral SU(3)-flavor parity-doublet Polyakov-loop quark-hadron mean-field model, CMF. The quark sector of the CMF model is tuned to describe…

High Energy Physics - Phenomenology · Physics 2020-03-18 Anton Motornenko , Jan Steinheimer , Volodymyr Vovchenko , Stefan Schramm , Horst Stoecker

We study in detail the nuclear aspects of a neutron-star merger in which deconfinement to quark matter takes place. For this purpose, we make use of the Chiral Mean Field (CMF) model, an effective relativistic model that includes…

High Energy Astrophysical Phenomena · Physics 2020-03-16 Elias R. Most , L. Jens Papenfort , Veronica Dexheimer , Matthias Hanauske , Horst Stöcker , Luciano Rezzolla

We construct an equation of state (EOS) for neutron stars by interpolating hadronic EOS at low density and quark EOS at high density. A hadronic model based on the parity doublet structure is used for hadronic matter and a quark model of…

Nuclear Theory · Physics 2021-05-05 Takuya Minamikawa , Toru Kojo , Masayasu Harada

We investigate the chemical potential and baryon number density of the hadron-quark phase transition in neutron star matter. The hadron matter is described with relativistic mean field theory, and the quark matter is described with the…

Nuclear Theory · Physics 2019-09-04 Zhan Bai , Yu-xin Liu

The phase transition between the nuclear matter and the quark matter is examined. The relativistic mean field theory(RMF) is consider with interacting nucleons and mesons using TM1 parameter set for the nuclear matter equations of state. It…

Nuclear Theory · Physics 2009-10-31 S. Acharya , L. Maharana , R. Mohanty , P. K. Panda

The effect of pasta phases on the quark-hadron phase transition is investigated for a set of relativistic mean-field equations of state for both hadron and quark matter. The results of the full numerical solution with pasta phases are…