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Related papers: Study of nuclear matter properties for Hybrid EoS

200 papers

The Equation of State (EoS) of dense matter represents a central issue in the study of compact astrophysical objects and heavy ion reactions at intermediate and relativistic energies. We have derived a nuclear EoS with nucleons and hyperons…

Nuclear Theory · Physics 2008-11-26 Fiorella Burgio

We present a hybrid equation of state (EoS) for dense matter in which a nuclear matter phase is described within the Dirac-Brueckner-Hartree-Fock (DBHF) approach and a two-flavor quark matter phase is modelled according to a recently…

Nuclear Theory · Physics 2008-11-26 D. B. Blaschke , D. Gomez Dumm , A. G. Grunfeld , T. Klahn , N. N. Scoccola

We construct the equation of state (EOS) of nuclear matter using the relativistic mean field (RMF) theory in the wide density, temperature range with various proton fractions for the use of supernova simulation and the neutron star…

Nuclear Theory · Physics 2009-10-31 H. Shen , H. Toki , K. Oyamatsu , K. Sumiyoshi

We construct four equation of state (EoS) tables, tabulated over a range of temperatures, densities, and charge fractions, relevant for neutron star applications such as simulations of neutron star mergers. The EoS are computed from a…

Nuclear Theory · Physics 2023-11-21 Mark G. Alford , Liam Brodie , Alexander Haber , Ingo Tews

We present a hybrid equation of state (EoS) for dense matter that satisfies phenomenological constraints from modern compact star (CS) observations which indicate high maximum masses (M = 2 M_sun) and large radii (R> 12 km). The…

Nuclear Theory · Physics 2008-11-26 T. Klahn , D. Blaschke , F. Sandin , C. Fuchs , A. Faessler , H. Grigorian , G. Ropke , J. Trumper

In this work, we explore how astronomical observations (specifically measurements of masses, radii, and tidal deformabilities) can constrain the presence of quark matter inside neutron stars, namely the phase transition from nuclear matter…

Nuclear Theory · Physics 2025-12-10 Fábio Köpp , César H. Lenzi , César V. Flores , and Débora P. Menezes

We study the phase transition of asymmetric hadronic matter to a quark-gluon plasma within the framework of a simple two-phase model. The analysis is performed in a system with two conserved charges (baryon number and isospin) using the…

Nuclear Theory · Physics 2009-10-30 Horst Mueller

We determine the equation of state (EOS) of nuclear matter with the inclusion of hyperons in a self-consistent manner by using a Modified Quark Meson Coupling Model (MQMC) where the confining interaction for quarks inside a baryon is…

Nuclear Theory · Physics 2016-10-12 R. N. Mishra , H. S. Sahoo , P. K. Panda , N. Barik , T. Frederico

First-order phase transitions, like the liquid-gas transition, proceed via formation of structures such as bubbles and droplets. In strongly interacting compact star matter, at the crust-core transition, but also at the hadron-quark…

High Energy Astrophysical Phenomena · Physics 2018-09-17 Vahagn Abgaryan , David Alvarez-Castillo , Alexander Ayriyan , David Blaschke , Hovik Grigorian

The equation of state (EOS) for neutron stars is modeled using the Relativistic Mean Field (RMF) approach with a mesonic nonlinear (NL) interaction, a modified sigma cut potential (NL-$\sigma$ cut), and the influences of dark matter in the…

Nuclear Theory · Physics 2025-05-21 Prashant Thakur , Tuhin Malik , Arpan Das , T. K. Jha , B. K. Sharma , Constança Providência

It is the aim of this paper to discuss the impact of nuclear fusion on the EOS. This is a timely subject given the expected availability of increasingly exotic beams at rare isotope facilities\,\cite{balantekin2014}. In practice, we focus…

Nuclear Theory · Physics 2016-05-03 P. -G. Reinhard , A. S. Umar , P. D. Stevenson , J. Piekarewicz , V. E. Oberacker , J. A. Maruhn

In the framework of an equation of state (EoS) constructed from a momentum and density-dependent finite-range two-body effective interaction, the quantitative magnitudes of the different symmetry elements of infinite nuclear matter are…

Nuclear Theory · Physics 2017-05-24 B. K. Agrawal , S. K. Samaddar , J. N. De , C. Mondal , Subhranil De

Taking into account the terrestrial experiments and the recent astrophysical observations of neutron stars and gravitational-wave signals, we impose restrictions on the equation of state (EoS) for isospin-asymmetric nuclear matter. Using…

Nuclear Theory · Physics 2021-03-18 Soonchul Choi , Tsuyoshi Miyatsu , Myung-Ki Cheoun , Koichi Saito

Noncommutative features are introduced into a relativistic quantum field theory model of nuclear matter, the quantum hadrodynamics-I nuclear model (QHD-I). It is shown that the nuclear matter equation of state (NMEoS) depends on the…

High Energy Physics - Phenomenology · Physics 2015-12-09 Orfeu Bertolami , Hodjat Mariji

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…

Nuclear Theory · Physics 2023-01-11 Márcio Ferreira , Renan Câmara Pereira , Constança Providência

In this paper, the implications of the symmetry energy on the hadron and quark phase transitions in the compact star, including the properties of the possible configurations of the quark-hadron hybrid stars, are investigated in the…

Nuclear Theory · Physics 2023-07-19 Parada T. P. Hutauruk , Hana Gil , Seung-il Nam , Chang Ho Hyun

With ongoing advancements in nuclear theory and experimentation, together with a growing body of neutron star (NS) observations, a wealth of information on the equation of state (EOS) for matter at extreme densities has become accessible.…

High Energy Astrophysical Phenomena · Physics 2025-07-18 Bhaskar Biswas , Stephan Rosswog

We report the first use of the effective QMC energy density functional (EDF), derived from a quark model of hadron structure, to study a broad range of ground state properties of even-even nuclei across the periodic table in the…

Nuclear Theory · Physics 2016-03-23 J. R. Stone , P. A. M. Guichon , P. G. Reinhard , A. W. Thomas

We investigate structures of hybrid stars, which feature quark core surrounded by a hadronic matter mantle, with super-strong toroidal magnetic fields in full general relativity. Modeling the equation of state (EOS) with a first order…

High Energy Astrophysical Phenomena · Physics 2015-05-14 Nobutoshi Yasutake , Kenta Kiuchi , Kei Kotake

The appearance of quark matter in the core of hybrid stars is a fundamental issue in such compact stars. The central density of these stars is sufficiently high such that nuclear matter undergoes a further change into other exotic phases…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Tomoki Endo