Color-spin locking in a self-consistent Dyson-Schwinger approach

Journal Article · Thu Mar 01 04:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.054022· OSTI ID:21020069

Marhauser, Florian; Nickel, Dominik; Buballa, Michael ^[1]; Wambach, Jochen ^[1]

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1. Institut fuer Kernphysik, Technische Universitaet Darmstadt, D-64289 Darmstadt (Germany)

We investigate the color-spin locked phase of spin-one color-superconducting quark matter using a truncated Dyson-Schwinger equation for the quark propagator in Landau gauge. Starting from the most general parity conserving ansatz allowed by the color-spin locked symmetry, the Dyson-Schwinger equation is solved self-consistently and dispersion relations are discussed. We find that chiral symmetry is spontaneously broken due to terms which have previously been neglected. As a consequence, the excitation spectrum contains only gapped modes even for massless quarks. Moreover, at moderate chemical potentials the quasiparticle pairing gaps are several times larger than expected from extrapolated weak-coupling results.

• OSTI ID: 21020069
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 75; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
COLOR MODEL
COUPLING
DISPERSION RELATIONS
EXCITATION
PARITY
POTENTIALS
PROPAGATOR
QUARK MATTER
QUARKS
SCHWINGER FUNCTIONAL EQUATIONS
SPIN
SYMMETRY BREAKING