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The quasiparticle model is employed to investigate the quark matter at finite chemical potential. The effective bag constant is derived to be dependent on both the chemical potential and the magnetic field. The self-consistent…

High Energy Physics - Phenomenology · Physics 2025-01-14 Xin-Jian Wen , Xiao-Wen Jiang

One of the most intriguing consequence of the extreme conditions inside neutron stars is the possibility of the natural existence of a deconfined strange quark matter phase in the high density interior of the star. The equation of state…

Astrophysics · Physics 2007-05-23 K. Schertler , C. Greiner , M. H. Thoma

We investigate the thermodynamic properties of strange quark matter under the strong magnetic field in the framework of the MIT bag model in two cases of bag constants. We consider two cases of the magnetic field, the uniform magnetic field…

Nuclear Theory · Physics 2020-04-10 Fatemeh Kayanikhoo , Kazem Naficy , Gholam Hossein Bordbar

We study cold strange quark stars employing an enhanced version of the quark-mass density-dependent model which incorporates excluded volume effects to address non-perturbative QCD repulsive interactions. We provide a comparative analysis…

Nuclear Theory · Physics 2024-05-29 G. Lugones , A. G. Grunfeld

Strange quark matter in beta equilibrium at high densities is studied in a quark confinement model. Two equations of state are dynamically generated for the {\it same} set of model parameters used to describe the nucleon: one corresponds to…

Astrophysics · Physics 2008-11-26 M. Malheiro , M. Fiolhais , A. R. Taurines

We investigate the structural parameters of strange quark stars (SQS) under the influence of strong magnetic fields and varying rotational frequencies. The equation of state is computed using the MIT bag model with a density-dependent bag…

High Energy Astrophysical Phenomena · Physics 2026-01-15 Fatemeh Kayanikhoo , Mateusz Kapusta , Miljenko Čemeljić , Leszek Zdunik

3-flavor quark matter (strange quark matter; SQM) can be stable or metastable for a wide range of strong interaction parameters. If so, SQM can play an important role in cosmology, neutron stars, cosmic ray physics, and relativistic…

Astrophysics · Physics 2014-10-13 Jes Madsen

If quark matter is energetically favored over nuclear matter at zero temperature and pressure then it has long been expected to take the form of strange quark matter (SQM), with comparable amounts of $u$, $d$, $s$ quarks. The possibility of…

High Energy Physics - Phenomenology · Physics 2018-06-06 Bob Holdom , Jing Ren , Chen Zhang

In this work a density dependent quark model is revisited, its thermodynamic consistency checked and the stability window for absolutely stable quark matter obtained. The hypotheses of both pure quark matter with equal quark chemical…

High Energy Physics - Phenomenology · Physics 2021-05-26 B. C. Backes , E. Hafemann , I. Marzolla , D. P. Menezes

With the recent findings from various astrophysical results hinting towards possible existence of strange quark matters with the baryonic resonances such as $\Lambda^0, \Sigma^0, \Xi, \Omega$ in the core of neutron stars, we investigate the…

High Energy Physics - Phenomenology · Physics 2022-08-18 Hiranmaya Mishra , Prasanta K. Panigrahi , Sudhanwa Patra , Utpal Sarkar

Bulk properties of strange quark matter (SQM) are investigated within the SU(3) Nambu-Jona-Lasinio model. In the chiral limit the model behaves very similarly to the MIT bag model which is often used to describe SQM. However, when we…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Buballa , M. Oertel

The assumption underlying the existence of quark stars is based on the Bodmer-Witten conjecture. These authors have claimed that it is possible that the interior of a neutron-like star does not consist primarily of hadrons, but rather of…

Nuclear Theory · Physics 2013-08-12 J. R. Torres , D. P. Menezes , V. Dexheimer

Quark matter is expected to exist in the interior of compact stellar objects as neutron stars or even the more exotic strange stars, based on the Bodmer-Witten conjecture. Bare strange quark stars and (normal) strange quark-matter stars,…

In this work, a new class of solution of the Einstein field equation for an isotropic strange star using the modified Mak-Harko type density profile along with the equation of state as proposed in the MIT bag model and considering finite…

General Relativity and Quantum Cosmology · Physics 2025-08-06 Rohit Roy , Debadri Bhattacharjee , Koushik Ballav Goswami , Pradip Kumar Chattopadhyay

Strange quark matter (SQM) may be the true ground state of matter. According to this SQM hypothesis, the observed neutron stars actually should all be strange quark stars. But distinguishing between neutron stars and strange quark stars by…

High Energy Astrophysical Phenomena · Physics 2021-10-01 Xu Wang , Yong-Feng Huang , Bing Li

Strange quark matter could be found in the core of neutron stars or forming strange quark stars. As is well known, these astrophysical objects are endowed with strong magnetic fields which affect the microscopic properties of matter and…

Astrophysics · Physics 2008-12-18 R. Gonzalez Felipe , A. Perez Martinez , H. Perez Rojas , M. Orsaria

We derive scaling laws that connect certain macroscopic observables of strange quark stars with key microscopic properties of self-bound quark matter, such as the energy per baryon at zero pressure and the strength of repulsive…

Nuclear Theory · Physics 2025-06-26 G. Lugones , A. G. Grunfeld

We investigate the effects of non-Newtonian gravity on the properties of strange quark stars (QSs) and constrain the parameters of the standard MIT bag model used to describe strange quark matter (SQM) by employing the mass of PSR…

High Energy Astrophysical Phenomena · Physics 2020-10-14 Shu-Hua Yang , Chun-Mei PI , Xiao-Ping Zheng , Fridolin Weber

By using the recent nonperturbative equation of state of the quark gluon plasma derived in the formalism of the Field Correlator Method, we investigate the bulk properties of the strange quark matter in beta-equilibrium and with charge…

High Energy Physics - Phenomenology · Physics 2015-06-11 F. I. M. Pereira

Within a confining quark matter model which considers phenomenologically the quark confinement and asymptotic freedom as well as the chiral symmetry restoration and quark deconfinement at high baryon density, we find that if the up-down…

High Energy Astrophysical Phenomena · Physics 2023-06-16 Zheng Cao , Lie-Wen Chen , Peng-Cheng Chu , Ying Zhou