Unlocking of color and flavor in color-superconducting quark matter

Journal Article · Fri Dec 01 04:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.114015· OSTI ID:20868095

Nickel, D ^[1]; Alkofer, R ^[2]; Wambach, J ^[1]

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1. Institute for Nuclear Physics, Technical University Darmstadt, Schlossgartenstrasse 9, D-64289 Darmstadt (Germany)
2. Institute of Physics, University of Graz, Universitaetsplatz 5, A-8010 Graz (Austria)

The role of the strange quark mass for the phase structure of QCD at nonvanishing densities is studied by employing a recently developed self-consistent truncation scheme for the Dyson-Schwinger equations of the quark propagators in Landau gauge. Hereby the medium modification of the effective quark interaction by the polarization of gluons is implemented. Taking into account this effect results in significantly smaller dynamical quark masses at the Fermi surface. Because of this reduction the color-flavor locked phase is always the preferred color-superconducting phase at zero temperature and for a realistic strange quark mass.

• OSTI ID: 20868095
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 74; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COLOR MODEL
FERMI LEVEL
FLAVOR MODEL
GLUONS
POLARIZATION
PROPAGATOR
QUANTUM CHROMODYNAMICS
QUARK MATTER
REST MASS
S QUARKS
SCHWINGER FUNCTIONAL EQUATIONS