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Related papers: The Deconfinement Phase Transition in Proto-Neutro…

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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

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 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

As a neutron star spins down, its core density increase, changing the relative equilibrium concentration, and causing deconfinement phase transition as well. hadron matter are converted into quark matter in the interior, which enhances the…

High Energy Astrophysical Phenomena · Physics 2015-03-19 Wei Wei , Xiao-Ping Zheng

In this paper we review the most common descriptions for the first order phase transition to deconfined quark matter in the core of neutron stars. We also present a new description of these phase transitions in the core of proto-neutron…

High Energy Astrophysical Phenomena · Physics 2019-01-24 V. Dexheimer , L. T. T. Soethe , J. Roark , R. O. Gomes , S. O. Kepler , S. Schramm

The deconfinement phase transition which happens in the interior of neutron stars are investigated. Coupled with the spin evolution of the stars, the effect of entropy production and deconfinement heat generation during the deconfinement…

High Energy Astrophysical Phenomena · Physics 2016-11-25 Xia Zhou , Xiao-Ping Zheng

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

In this conference proceeding, I discuss in detail the deconfinement to quark matter that takes place at large densities and/or temperatures. The first-order phase transition that is assumed to appear beyond a critical point gives rise to…

Nuclear Theory · Physics 2018-01-26 Veronica 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

The deconfinement phase transition will lead to the release of latent heat during spins down of neutron stars if the transition is the first-order one.We have investigated the thermal evolution of neutron stars undergoing such deconfinement…

Astrophysics · Physics 2008-11-26 Miao Kang , Nana Pan , Xiaodong Wang

It is well known that neutron stars spin down due to magnetic dipole radiation. The deconfinement phase transition of hadron matter to quark matter is expected to occur in the dense cores of the stars during spin-down. The phase transition…

High Energy Astrophysical Phenomena · Physics 2010-06-02 Miao Kang

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 study different stages of the neutron star cooling by computing neutron star properties at various temperatures and entropies using an effective chiral model including hadronic and quark degrees of freedom. Macroscopic properties of the…

Astrophysics · Physics 2010-11-02 V. Dexheimer , S. Schramm

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

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

We study the quark deconfinement phase transition in hot $\beta$-stable hadronic matter. Assuming a first order phase transition, we calculate the enthalpy per baryon of the hadron-quark phase transition. We calculate and compare the…

Solar and Stellar Astrophysics · Physics 2014-11-20 I. Bombaci , D. Logoteta , P. K. Panda , C. Providencia , I. Vidana

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

In this work, we study matter in the cores of proto-neutron stars, focusing on the impact of their composition on the stellar structure. We begin by examining the effects of finite temperature (through a fixed entropy per baryon) and lepton…

High Energy Astrophysical Phenomena · Physics 2019-05-15 J. Roark , X. Du , C. Constantinou , V. Dexheimer , A. W. Steiner , J. R. Stone

We investigate systematically the possible deconfinement phase transition from nuclear matter to quark matter in compact stars. The properties of nuclear matter are fixed by expanding its binding energy to the order of $\rho^3$, while those…

High Energy Physics - Phenomenology · Physics 2022-05-24 Hao-Miao Jin , Cheng-Jun Xia , Ting-Ting Sun , Guang-Xiong Peng
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