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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

We study the effects of strong magnetic fields on antikaon condensation in neutron star matter using the quark-meson coupling (QMC) model. The QMC model describes a nuclear many-body system as nonoverlapping MIT bags in which quarks…

Nuclear Theory · Physics 2008-11-26 P. Yue , H. Shen

We compare the mass-radius relationship of strange stars obtained in two theoretical frameworks describing the color-flavor-locking state of dense quark matter: The semi-empirical MIT model and a self-consistent approach using the…

Nuclear Theory · Physics 2013-11-21 L Paulucci , E J Ferrer , J E Horvath , V de la Incera

The gauge model of nonrelativistic particles on a line interacting with nonstandard gravitational fields [5] is supplemented by the addition of a (non)-Abelian gauge interaction. Solving for the gauge fields we obtain equations, in closed…

High Energy Physics - Theory · Physics 2009-11-07 P. C. Stichel , W. J. Zakrzewski

Equation of state for superdense nuclear matter is considered in the framework of relativistic mean-field theory, when the scalar-isovector -meson effective field is taken into account, as well. Assuming that the transition to the strange…

Solar and Stellar Astrophysics · Physics 2009-06-25 Grigor Alaverdyan

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

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

Within the confined isospin- and density-dependent mass model, we study the properties of strange quark matter (SQM) and quark stars (QSs) under strong magnetic fields. The equation of state of SQM under a constant magnetic field is…

Nuclear Theory · Physics 2014-10-01 Peng-Cheng Chu , Lie-Wen Chen , Xin Wang

The confining quark matter (CQM) model, in which the confinement and asymptotic freedom are modeled via the Richardson potential for quark-quark vector interaction and the chiral symmetry restoration at high density is described by the…

Nuclear Theory · Physics 2017-11-08 Peng-Cheng Chu , Lie-Wen Chen

The magnetic field and density behaviors of various thermodynamic quantities of strange quark matter under compact star conditions are investigated in the framework of the thermodynamically self-consistent quasiparticle model. For…

High Energy Physics - Phenomenology · Physics 2022-03-15 Zhen-Yan Lu , Jian-Feng Xu , Xin-Jian Wen , Guang-Xiong Peng , Marco Ruggieri

An extended quark mass density- and temperature- dependent model which includes the couplings between quarks and the sigma-mesons, omega-mesons is suggested. The MIT bag boundary constrain has been given up and the interactions between…

Nuclear Theory · Physics 2007-05-23 Wei Liang Qian , Ru-Keng Su

It is shown explicitly using MIT bag model that in presence of ultra-strong magnetic fields, a nucleon either flattens or collapses in the direction transverse to the external magnetic field in the classical or quantum mechanical picture…

Astrophysics · Physics 2009-11-07 Soma Mandal , Somenath Chakrabarty

We compute the one-loop quark-photon vertex and the quark magnetic moment in three different models with an infrared-modified gluon propagator, namely: the massive (Curci-Ferrari-like) model, the Gribov-Zwanziger model, and the Refined…

High Energy Physics - Phenomenology · Physics 2023-11-27 C. Mena , L. F. Palhares

We investigate properties of strange quark matter in the framework of SU(3) Nambu--Jona-Lasinio(NJL) model with vector interaction under strong magnetic fields. The effects of vector-isoscalar and vector-isovector interaction on the…

Nuclear Theory · Physics 2015-01-21 Peng-Cheng Chu , Xin Wang , Lie-Wen Chen , Mei Huang

We analyze the possibility of the formation of a magnetic-field-induced insulating state in a two-dimensional granular superconductor with relatively strong intergranular coupling and show that such a state appears in a model with spatial…

Disordered Systems and Neural Networks · Physics 2007-05-23 I. S. Beloborodov , Ya. V. Fominov , A. V. Lopatin , V. M. Vinokur

We determine the free energy of strongly interacting matter as a function of an applied constant and uniform magnetic field. We consider N_f = 2+1 QCD with physical quark masses, discretized on a lattice by stout improved staggered fermions…

High Energy Physics - Lattice · Physics 2014-05-15 Claudio Bonati , Massimo D'Elia , Marco Mariti , Francesco Negro , Francesco Sanfilippo

We propose a method to determine the total magnetic susceptibility of strongly interacting matter by lattice QCD simulations, and present first numerical results for the theory with two light flavors, which suggest a weak magnetic activity…

High Energy Physics - Lattice · Physics 2013-11-19 Claudio Bonati , Massimo D'Elia , Marco Mariti , Francesco Negro , Francesco Sanfilippo

We analyze the effect of color superconductivity in the transition from hot hadron matter to quark matter in the presence of a gas of trapped electron neutrinos. To describe strongly interacting matter we adopt a two-phase picture in which…

High Energy Astrophysical Phenomena · Physics 2014-02-24 Taiza A. S. do Carmo , Germán Lugones

In this work we examine possible effects of an external magnetic field in the strongly interacting matter phase diagram. The study is performed using the Polyakov-Nambu-Jona-Lasinio model. Possible consequences of the inverse magnetic…

High Energy Physics - Phenomenology · Physics 2022-09-21 Pedro Costa , Márcio Ferreira , Constança Providência

We investigate magnetic field $(eB)$ dependence of constituent quark mass, the longitudinal and transverse pressure as well as the magnetization and magnetic susceptibility of strongly interacting quark matter. We employ the two-flavour…

High Energy Physics - Phenomenology · Physics 2022-09-27 Nilanjan Chaudhuri , Snigdha Ghosh , Pradip Roy , Sourav Sarkar