English
Related papers

Related papers: Phase transition and properties of compact star

200 papers

The phase transition calculations are utilized for an in-depth understanding of the thermodynamics of the deconfinement transition to perform the best analysis of the QCD phase diagram. The phenomenological justifications for a mathematical…

Nuclear Theory · Physics 2023-03-07 Mahboubeh Shahrbaf

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 equation state of strongly interacting quark matter within a NJL-like model in which the chiral condensates and the color superconducting gaps are computed self-consistently as a function of the baryon density. A vector…

Astrophysics · Physics 2008-11-26 G. Pagliara , J. Schaffner-Bielich

We study the deconfinement transition of hadronic matter into quark matter in neutron star conditions in the light of color superconductivity. Deconfinement is considered to be a first order phase transition that conserves color and flavor.…

Astrophysics · Physics 2008-11-26 G. Lugones , I. Bombaci

In this work, we investigate the properties of hadronic and quark matter that would allow for a first order phase transition between them within neutron stars. To this end, we use a parameterizable Relativistic Mean-Field (RMF) description…

High Energy Astrophysical Phenomena · Physics 2025-09-10 Jan-Erik Christian , Ishfaq Ahmad Rather , Hosein Gholami , Marco Hofmann

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

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

We investigate the properties of mixed stars formed by hadronic and quark matter in $\beta$-equilibrium described by appropriate equations of state (EOS) in the framework of relativistic mean-field theory. We use the non- linear Walecka…

Nuclear Theory · Physics 2009-11-10 D. P. Menezes , C. Providencia

We study the phase diagram of dense quark matter with an emphasis on the role of the strange quark mass. Our approach is based on two effective field theories (EFTs). The first is an EFT that describes quark quasi-particles near the Fermi…

Nuclear Theory · Physics 2016-11-09 Thomas Schaefer

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…

The equation of state of neutron star matter is examined in terms of the relativistic mean-field theory, including a scalar-isovector $\delta$-meson effective field. The constants of the theory are determined numerically so that the…

Nuclear Theory · Physics 2015-05-13 G. B. Alaverdyan

It has been known for some time that compact stars containing quark matter can masquerade as neutron stars in the range of measured mass and radius, making it difficult to draw firm conclusions on the phases of matter present inside the…

Nuclear Theory · Physics 2020-01-08 Wei Wei , Bryen Irving , Thomas Klähn , Prashanth Jaikumar

We study the hadron-quark phase transition in the interior of neutron stars. The relativistic mean field (RMF) theory is adopted to describe the hadronic matter phase, while the Nambu-Jona-Lasinio (NJL) model is used for the quark matter…

Nuclear Theory · Physics 2008-11-26 F. Yang , H. Shen

We construct an equation of state including the hadron-quark phase transition. The mixed phase is obtained by the Gibbs conditions for finite temperature. We adopt the equation of state based on the relativistic mean field theory for the…

Astrophysics · Physics 2008-11-26 Ken'ichiro Nakazato , Kohsuke Sumiyoshi , Shoichi Yamada

The equation of state for quark matter is derived for a nonlocal, chiral quark model within the mean field approximation. We investigate the effects of a variation of the form factors of the interaction on the phase diagram of quark matter…

High Energy Physics - Phenomenology · Physics 2009-11-10 D. Blaschke , H. Grigorian , D. N. Aguilera , S. Yasui , H. Toki

This thesis work focuses on studying the possible existence of phase transitions in the immediate compact remnants of core collapse supernova, neutron stars, and the theoretical models that describe the interior of dense matter.…

Nuclear Theory · Physics 2020-10-29 German Malfatti

We study the consequences of the hadron-quark deconfinement phase transition in stellar compact objects when finite size effects between the deconfined quark phase and the hadronic phase are taken into account. We show that above a…

Astrophysics · Physics 2014-10-13 Ignazio Bombaci , Irene Parenti , Isaac Vidaña

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

We study properties of compact stars with the deconfinement phase transition in their interiors. The equation of state of cold baryon-rich matter is constructed by combining a relativistic mean-field model for the hadronic phase and the MIT…

High Energy Physics - Phenomenology · Physics 2009-11-07 I. N. Mishustin , M. Hanauske , A. Bhattacharyya , L. M. Satarov , H. Stoecker , W. Greiner

The Quark-Hadron Chiral Parity-Doublet model (Q$\chi$P) is applied to calculate compact star properties in the presence of a deconfinement phase transition. Within this model, a consistent description of nuclear matter properties, chiral…

Nuclear Theory · Physics 2017-12-20 A. Mukherjee , S. Schramm , J. Steinheimer , V. Dexheimer