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We study the effect of a magnetic field on the interacting quark matter and apply to strange star. We considere the low temperature approximation to strange matter. We find that the interacting strange quark matter is more stable compare to…

Astrophysics · Physics 2008-02-03 Pradip K Sahu

We investigate the effects of realistic quark masses and local color neutrality on quark pairing in the three-flavor Polyakov--Nambu--Jona-Lasinio model. While prior studies have indicated the presence of light flavor quark (2SC) or…

High Energy Physics - Phenomenology · Physics 2013-07-16 Philip D. Powell , Gordon Baym

Thermodynamics of the three-flavor quark-meson model with axial anomaly is studied in the presence of external magnetic fields. The nonperturbative functional renormalization group is employed in order to incorporate quantum and thermal…

High Energy Physics - Phenomenology · Physics 2015-02-26 Kazuhiko Kamikado , Takuya Kanazawa

We investigate the phase diagram of color superconducting quark matter with strange quarks (2SC+s quark matter) in beta equliibrium at zero as well as finite temperatures within a Nambu-Jona-Lasinio model. The variational method as used…

High Energy Physics - Phenomenology · Physics 2009-11-10 Amruta Mishra , Hiranmaya Mishra

We analyze the dependence of the chiral phase transition temperature on baryon number and strangeness chemical potentials by calculating the leading order curvature coefficients in the light and strange quark flavor basis as well as in the…

High Energy Physics - Lattice · Physics 2024-08-05 H. -T. Ding , O. Kaczmarek , F. Karsch , P. Petreczky , Mugdha Sarkar , C. Schmidt , Sipaz Sharma

We report on the first study of the screening properties of the mesonic excitations with strange ($s$) and charm ($c$) quarks, specifically the ground states of the pseudo-scalar and vector meson excitations for the $\bar{s}s$, $\bar{s}c$…

High Energy Physics - Lattice · Physics 2013-12-17 Y. Maezawa , A. Bazavov , F. Karsch , P. Petreczky , S. Mukherjee

We present preliminary results from exploring the phase diagram of finite temperature QCD with three degenerate flavors and with two light flavors and the mass of the third held approximately at the strange quark mass. We use an order…

High Energy Physics - Lattice · Physics 2008-11-26 C. Bernard , T. Burch , S. Datta , T. A. DeGrand , C. E. DeTar , Steven Gottlieb , U. M. Heller , K. Orginos , R. L. Sugar , D. Toussaint

We study the effects of an external magnetic field on thensuperconducting phase diagram of a quasi-two-dimensional system of Dirac electrons at an arbitrary temperature. At zero temperature, there is a quantum phase transition connecting a…

Superconductivity · Physics 2020-10-14 E. C. Marino , Lizardo H. C. M. Nunes

Several model calculations of the QCD phase structure at nonzero temperature and density suggest that in certain regions of the phase diagram inhomogeneous condensates are favored over homogeneous ones. In particular, in a two-flavor NJL…

High Energy Physics - Phenomenology · Physics 2020-06-04 Michael Buballa , Stefano Carignano

Thermodynamic properties of strange quark matter (SQM) in a nonuniform magnetic field are studied within the phenomenological MIT bag model under the charge neutrality and beta equilibrium conditions, relevant to the interior of strange…

High Energy Physics - Phenomenology · Physics 2018-09-05 A. A. Isayev

The behavior of the mesons and diquarks is studied at finite temperatures, chemical potentials and densities, notably when the color superconductivity is taken into account. The Nambu and Jona-Lasinio model complemented by a Polyakov loop…

High Energy Physics - Phenomenology · Physics 2025-09-04 Eric Blanquier

I discuss the zero temperature phase diagram of QCD, as a function of baryon density and strange quark mass. The noteworthy points are that at sufficiently high density chiral symmetry is always restored, and at low strange quark mass there…

High Energy Physics - Lattice · Physics 2015-06-25 M. Alford

We present preliminary results from exploring the phase diagram of finite temperature QCD with three degenerate flavors and with two light flavors and the mass of the third held approximately at the strange quark mass. We use an order…

High Energy Physics - Lattice · Physics 2008-11-26 C. Bernard , T. Burch , S. Datta , T. A. DeGrand , C. E. DeTar , Steven Gottlieb , U. M. Heller , K. Orginos , R. L. Sugar , D. Toussaint

We perform lattice numerical simulations to study the phase transition of QCD at finite temperature to clarify the nature of the transition of massless two flavor QCD. We investigate QCD with two light and Nf heavy quarks instead of…

High Energy Physics - Lattice · Physics 2016-02-16 Norikazu Yamada , Shinji Ejiri , Ryo Iwami

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

We investigate color superconducting phases of cold quark matter at densities relevant for the interiors of compact stars. At these densities, electrically neutral and weak-equilibrated quark matter can have unequal numbers of up, down, and…

High Energy Physics - Phenomenology · Physics 2013-05-29 Jeffrey A. Bowers

We investigate the effect of electric and color charge neutrality on the two-flavor color superconducting (2SC) phase of cold and dense quark matter in presence of constant external magnetic fields and at moderate baryon densities. Within…

Nuclear Theory · Physics 2015-10-21 Tanumoy Mandal , Prashanth Jaikumar

We studied QCD with two flavors of dynamical staggered quarks at finite temperature, with a bare sea quark mass of about 17 MeV. We report investigations of baryon, isospin, charge and strangeness susceptibilities, as well as screening…

High Energy Physics - Lattice · Physics 2009-11-07 Rajiv V. Gavai , Sourendu Gupta , Pushan Majumdar

We calculate the Debye and Meissner masses and investigate chromomagnetic instability associated with the gapless color superconducting phase changing the strange quark mass $M_s$ and the temperature $T$. Based on the analytical study, we…

High Energy Physics - Phenomenology · Physics 2009-11-11 Kenji Fukushima

We investigate the effect of six fermion determinant interaction on color superconductivity as well as on chiral symmetry breaking. Coupled mass gap equations and the superconducting gap equation are derived through the minimisation of the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Amruta Mishra , Hiranmaya Mishra