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In this thesis, several color-superconducting phases where quarks of the same flavor form Cooper pairs are investigated. In these phases, a Cooper pair carries total spin one. A systematic classification of theoretically possible phases,…

Nuclear Theory · Physics 2007-05-23 Andreas Schmitt

We point out that chiral condensates at nonzero temperature and magnetic fields are in strict connection to the space-time integral of corresponding two-point neutral meson correlation functions in the pseudoscalar channel via the…

High Energy Physics - Lattice · Physics 2022-03-14 H. -T. Ding , S. -T. Li , J. -H. Liu , X. -D. Wang

We investigate the effects of isospin asymmetry on the competition between color-superconductivity and inhomogeneous chiral symmetry breaking in dense two-flavor quark matter using an extended Nambu--Jona-Lasinio model. We confirm the…

High Energy Physics - Phenomenology · Physics 2016-02-16 Daniel Nowakowski , Stefano Carignano

In this paper the non-perturbative suppression of the Chiral Magnetic Effect (CME) is investigated in the deconfined region of the QCD phase diagram (as a model for Quark-Gluon Plasma (QGP) emerging in Heavy Ion Collisions (HIC)), using the…

High Energy Physics - Phenomenology · Physics 2025-03-25 Ruslan A. Abramchuk

Using a general Ginzburg-Landau effective Lagrangian, we study the topological structure and low-lying collective modes of dense QCD having both chiral and diquark condensates, for two and three massless flavors. As we found earlier, the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Naoki Yamamoto , Motoi Tachibana , Tetsuo Hatsuda , Gordon Baym

We consider an extension of the finite-temperature Dyson-Schwinger equation (DSE) approach to heavy mesons and quarkonia and apply it to calculate the cross section for the J/Psi breakup reaction J/Psi + pi --> D + D. We study the effects…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. B. Blaschke , G. R. G. Burau , M. A. Ivanov , Yu. L. Kalinovsky , P. C. Tandy

The phase diagram of two color QCD under influence of baryon density ($\mu_B$), isospin ($\mu_I$), chiral ($\mu_5$ and $\nu_5$) imbalances is investigated within the framework NJL model approach. This letter establishes the existence of…

High Energy Physics - Phenomenology · Physics 2026-02-27 K. G. Klimenko , R. N. Zhokhov

In this paper the massless NJL model extended by the diquark interaction channel is considered. We study its phase structure at zero temperature and in the presence of baryon $\mu_B$, isospin $\mu_I$, chiral $\mu_{5}$ and chiral isospin…

High Energy Physics - Phenomenology · Physics 2023-10-13 T. G. Khunjua , K. G. Klimenko , R. N. Zhokhov

We construct the chiral perturbation theory for two-color QCD with two quark flavors as an effective theory on the SO(6)/SO(5) coset space. This formulation turns out to be particularly useful for extracting the physical content of the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Tomas Brauner

The chiral magnetic effect (CME) in quantum chromodynamics (QCD) refers to a charge separation (an electric current) of chirality imbalanced quarks generated along an external strong magnetic field. The chirality imbalance results from…

Nuclear Experiment · Physics 2019-06-28 Jie Zhao , Fuqiang Wang

The spectrum of meson and diquark excitations of dense color neutral cold quark matter is investigated in the framework of a 2-flavored Nambu--Jona-Lasinio type model, including a quark $\mu$- and color $\mu_8$ chemical potential. It was…

High Energy Physics - Phenomenology · Physics 2009-11-11 D. Ebert , K. G. Klimenko , V. L. Yudichev

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 study the effect of a large magnetic field on the chiral and diquark condensates in a regime of moderately dense quark matter. Our focus is on the inter-dependence of the two condensates through non-perturbative quark mass and strong…

Nuclear Theory · Physics 2009-12-11 Tanumoy Mandal , Prashanth Jaikumar , Sanatan Digal

The phase structure of dense quark matter in the two color case has been investigated with nonzero baryon $\mu_B$, isospin $\mu_I$ and chiral isospin $\mu_{I5}$ chemical potentials. %in the framework of Nambu--Jona-Lasinio model with…

High Energy Physics - Phenomenology · Physics 2022-06-01 T. G. Khunjua , K. G. Klimenko , R. N. Zhokhov

We investigate color superconductivity and chiral symmetry restoration at finite temperature and baryon density in the frame of standard two flavor Nambu--Jona-Lasinio model. We derive the diquark mass in RPA, discuss its constraint on the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Pengfei Zhuang

Utilizing an extended two-flavor Nambu-Jona Lasinio (NJL) model, we review some of the effects of external magnetic fields on two-flavor color superconducting phase (2SC) at moderate baryon densities in the QCD phase diagram. The effective…

High Energy Physics - Phenomenology · Physics 2013-02-05 Sh. Fayazbakhsh , N. Sadooghi

The vector mesons in three-flavor quark matter with chiral and diquark condensates are studied using the in-medium QCD sum rules. The diquark condensate leads to a mass splitting between the flavor-octet and flavor-singlet channels. At high…

High Energy Physics - Phenomenology · Physics 2008-11-26 Tetsuo Hatsuda , Motoi Tachibana , Naoki Yamamoto

At a critical temperature QCD in the chiral limit undergoes a chiral restoration phase transition. Above the phase transition the quark condensate vanishes. The Banks-Casher relation connects the quark condensate to a density of the…

High Energy Physics - Phenomenology · Physics 2016-12-28 L. Ya. Glozman

We study the impact of higher order quark-meson scattering processes on the chiral phase structure of two-flavour QCD at finite temperature and quark density. Thermal, density and quantum fluctuations are included within a functional…

High Energy Physics - Phenomenology · Physics 2017-09-27 Jan M. Pawlowski , Fabian Rennecke

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 2013-02-26 Seamus Cotter , Pietro Giudice , Simon Hands , Jon-Ivar Skullerud