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

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

2006-12-04

arxiv.org/abs/hep-ph/0612027v2

Phys.Rev.D75:054022,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 7 figures

Scientific paper

10.1103/PhysRevD.75.054022

We investigate the color-spin locked (CSL) 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 CSL 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.

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