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We investigate the possible sequels, for the hybrid compact stars consisting of nucleons, hyperons and three flavour color-flavor-locked quarks phase under global neutrality and chemical equilibrium conditions. The hadron equations of state…

Nuclear Theory · Physics 2019-09-18 Suman Thakur , Shashi K Dhiman

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 color-flavor locked phase of QCD with three massless quarks at high chemical potential and small non zero temperatures. We make use of the recently introduced effective action to describe such a phase. We obtain the exact order…

High Energy Physics - Phenomenology · Physics 2009-10-31 R. Casalbuoni , R. Gatto

We study the two-flavor color superconductivity of low-temperature quark matter in the vicinity of chiral phase transition in the quark-meson model where the interactions between quarks are generated by pion and sigma exchanges. Starting…

High Energy Physics - Phenomenology · Physics 2018-04-09 Armen Sedrakian , Ralf-Arno Tripolt , Jochen Wambach

We construct a new color neutral ground state of two-flavor color superconducting quark matter. It is shown that, in contrast with the conventionally considered ground state with diquark pairing in only one color direction, this new state…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. Blaschke , D. Gómez Dumm , A. G. Grunfeld , N. N. Scoccola

We give an introduction crystalline color superconductivity, arguing that it is likely to occur wherever quark matter in which color-flavor locking does not occur is found. We survey the properties of this form of quark matter, and argue…

High Energy Physics - Phenomenology · Physics 2009-11-07 Krishna Rajagopal

This work discuses the effect of the QCD coupling constant ($\alpha_c$) on various physical properties of compact stars in the framework of the Tolman IV potential admitting the equation of state of MIT bag model with nonzero value of mass…

General Relativity and Quantum Cosmology · Physics 2024-12-17 R Roy , K B Goswami , P K Chattopadhyay , A Saha

In this note, we discuss the basic elements that should appear in a gravitational system dual to a confining gauge theory displaying color superconductivity at large baryon density. We consider a simple system with these minimal elements,…

High Energy Physics - Theory · Physics 2015-03-17 Pallab Basu , Fernando Nogueira , Moshe Rozali , Jared B. Stang , Mark Van Raamsdonk

The equation of state of deconfined strongly interacting matter at high densities remains an open question, with effects from quark pairing in the preferred color-flavor-locked (CFL) ground state possibly playing an important role. Recent…

High Energy Physics - Phenomenology · Physics 2025-11-21 Andreas Geißel , Tyler Gorda , Jens Braun

The central compact object within HESS J1731- 347 possesses unique mass and radius properties that renders it a compelling candidate for a self-bound star. In this research, we examine the capability of quark stars composed of colour…

High Energy Astrophysical Phenomena · Physics 2023-09-26 P. T. Oikonomou , Ch. C. Moustakidis

Cold dense quark matter is in a crystalline color superconducting phase wherever pairing occurs between species of quarks with chemical potentials whose difference \delta\mu lies within an appropriate window. If the interaction between…

High Energy Physics - Phenomenology · Physics 2016-09-06 Adam K. Leibovich , Krishna Rajagopal , Eugene Shuster

We study two-color QCD with two flavors of Wilson fermion as a function of quark chemical potential mu and temperature T. We find evidence of a superfluid phase at intermediate mu and low T where the quark number density and diquark…

High Energy Physics - Lattice · Physics 2012-10-26 Seamus Cotter , Jon-Ivar Skullerud , Pietro Giudice , Simon Hands , Seyong Kim , Dhagash Mehta

We delineate equilibrium phase structure and topological charge distribution of dense two-colour QCD at low temperature by using a lattice simulation with two-flavour Wilson fermions that has a chemical potential $\mu$ and a diquark source…

High Energy Physics - Lattice · Physics 2020-02-19 Kei Iida , Etsuko Itou , Tong-Gyu Lee

According to quantum chromodynamics (QCD), matter at ultra-high densities will take the form of a color-superconducting quark liquid, in which there is a condensate of Cooper pairs of quarks near the Fermi surface. I present a review of the…

Nuclear Theory · Physics 2008-11-26 Mark Alford

We present results of a microscopic calculation using NJL-type model of possible spin-one pairings in two flavor quark matter for applications in compact star phenomenology. We focus on the color-spin locking phase (CSL) in which all quarks…

High Energy Physics - Phenomenology · Physics 2008-11-26 D. N. Aguilera

A quark-cluster state, rather than the color-super-conductivity state, may appear in matter with low-temperature but high density, since the phase transition of chiral symmetry broken and that of color-confinement could not occur…

Astrophysics · Physics 2007-05-23 Weiwei Zhu , Renxin Xu

We determine the chiral phase structure of $2+1$-flavour QCD in dependence of temperature and the light flavour quark mass with Dyson-Schwinger equations. Specifically, we compute the renormalised chiral condensate and its susceptibility.…

High Energy Physics - Phenomenology · Physics 2022-06-01 Fei Gao , Jan M. Pawlowski

We argue that if color-superconducting quark matter exists in the core of a neutron star, it may contain a high density of flux tubes, carrying flux that is mostly color-magnetic, with a small admixture of ordinary magnetic flux. We focus…

Solar and Stellar Astrophysics · Physics 2014-11-20 Mark G. Alford , Armen Sedrakian

We investigate the chiral symmetry breaking and color superconductivity in color and electric charge neutral quark matter including strange quarks (2SC+s quark matter) in a Nambu-Jona-Lasinio model using a variational method. The…

High Energy Physics - Phenomenology · Physics 2007-05-23 Amruta Mishra , Hiranmaya Mishra

We explore the phase diagram of neutral quark matter at high baryon density as a function of the temperature T and the strange quark mass Ms. At T=0, there is a sharp distinction between the insulating color-flavor locked (CFL) phase, which…

High Energy Physics - Phenomenology · Physics 2014-11-18 Kenji Fukushima , Chris Kouvaris , Krishna Rajagopal
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