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Related papers: On the Deconfinement Phase Transition in Neutron-S…

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In this work, we study in detail the deconfinement phase transition that takes place in hot/dense nuclear matter in the context of neutron stars and proto-neutron stars (in which lepton fraction is fixed). The possibility of different…

Nuclear Theory · Physics 2018-12-05 J. Roark , V. Dexheimer

In this work, we investigate how the assumption of chemical equilibrium with leptons affects the deconfinement phase transition to quark matter. This is done within the framework of the Chiral Mean Field model (CMF) allowing for non-zero…

At high density, matter is expected to undergo a phase transition to deconfined quark matter. Although the density at which it happens and the strength of the transition are still largely unknown, we can model it to be in agreement with…

Nuclear Theory · Physics 2023-11-21 Alexander Clevinger , Veronica Dexheimer , Jeffrey Peterson

We investigate the phase transition from hadron to quark matter in the general case without the assumption of chemical equilibrium. The effects of net strangeness on charge and isospin fractions, chemical potentials, and temperature are…

Nuclear Theory · Physics 2020-11-04 K. Aryal , C. Constantinou , R. L. S. Farias , V. Dexheimer

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

In this special issue article, I review some of the accomplishments of the chiral mean field (CMF) model, which contains nucleon, hyperon, and quark degrees of freedom, and its applications to proto-neutron and neutron stars. I also present…

High Energy Astrophysical Phenomena · Physics 2022-08-31 V. Dexheimer

We investigate the phase transition to a deconfined phase and the consequences in the formation of neutron stars. We use the recently proposed effective field theory motivated relativistic mean field theory for hadron and the MIT Bag model…

Nuclear Theory · Physics 2008-11-26 B. K. Sharma , P. K. Panda , S. K. Patra

In this paper we investigate quark deconfinement in neutrons stars and their mergers, focusing on the effects of higher orders for the phase transition between hadronic and quark matter. The different descriptions we use to describe matter…

High Energy Astrophysical Phenomena · Physics 2026-03-02 P. Hammond , A. Clevinger , M. Albino , V. Dexheimer , S. Bernuzzi , C. Brown , W. Cook , B. Daszuta , J. Fields , E. Grundy , C. Providência , D. Radice , A. Steiner

The deconfinement phase transition from hadronic matter to quark matter in the interior of compact stars is investigated. The hadronic phase is described in the framework of relativistic mean-field (RMF) theory, when also the scalar-…

Nuclear Theory · Physics 2009-07-24 G. B. Alaverdyan

In this work, we discuss the dense matter equation of state (EOS) for the extreme range of conditions encountered in neutron stars and their mergers. The calculation of the properties of such an EOS involves modeling different degrees of…

We explore the Quantum Chromodynamics (QCD) phase diagram's complexities, including quark deconfinement transitions, liquid-gas phase changes, and critical points, using the chiral mean-field (CMF) model that is able to capture all these…

The Maxwell and Glendenning construction scenarios of deconfinement phase transition in neutron star matter are investigated. The hadronic phase is described within the relativistic mean-field (RMF) theory, if also the scalar-isovector…

Solar and Stellar Astrophysics · Physics 2015-06-05 A. G. Alaverdyan , G. B. Alaverdyan , A. O. Chiladze

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

Mergers of binary neutron stars create conditions of supranuclear density $n\gtrsim n_{\rm nuc}\simeq 0.17 {\rm fm}^{-3}$ and moderate temperature $50\lesssim T \lesssim 90 {\rm MeV}$. These events thus probe a sensitive region of the…

High Energy Physics - Phenomenology · Physics 2013-11-28 Pisin Chen , Lance Labun

We study the compact stars internal structure and observable characteristics alterations due to the quark deconfinement phase transition. To proceed with, we investigate the properties of isospin-asymmetric nuclear matter in the improved…

Solar and Stellar Astrophysics · Physics 2015-06-05 A. G. Alaverdyan , G. B. Alaverdyan , Sh. R. Melikyan

The hadron-quark phase transition in the interior of compact stars is investigated, when the transition proceeds through a mixed phase. The hadronic phase is described in the framework of relativistic mean-field theory, when also the…

Solar and Stellar Astrophysics · Physics 2009-12-02 G. B. Alaverdyan

The phase transition to a deconfined phase is studied and the consequences in the formation of neutron stars are investigated. We use the quark-meson-coupling model for the hadron matter and the MIT Bag model for the quark matter in order…

Nuclear Theory · Physics 2009-11-10 P. K. Panda , D. P. Menezes , C. Providência

The Quark Meson Coupling Model which describes nuclear matter as a collection of non-overlapping MIT bags interacting by the self-consistent exchange of scalar and vector mesons is used to study nuclear matter at finite temperature. In its…

Nuclear Theory · Physics 2009-10-31 I. Zakout , H. R. Jaqaman

The equation of state of neutron-rich nuclear matter is of interest to both nuclear physics and astrophysics. We have demonstrated the consistency between laboratory and astrophysical nuclear matter in neutron stars by considering…

Nuclear Theory · Physics 2023-10-06 Zhenyu Zhu , Ang Li , Jinniu Hu , Hong Shen

A phase of strong interacting matter with deconfined quarks is expected in the core of massive neutron stars. In this article, we perform a study of the hadron-quark phase transition in cold (T = 0) neutron star matter and we calculate…

Nuclear Theory · Physics 2013-09-20 Domenico Logoteta , Ignazio Bombaci
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