Formation of gapless phases of K0 condensed color-flavor locked superconducting quark matter

Xiao Bing Zhang, J. I. Kapusta

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Electric and color neutral solutions, and the critical conditions for the formation of gapless color superconductors, are investigated in K0 condensed color-flavor locked quark matter for nonzero strange quark mass. We show that as the strange quark mass increases, gapless modes for up-strange quark pairing occur first, followed by down-strange quark pairing. The behavior of the gaps, the dispersion relations, and the thermodynamic potential are all found as functions of the strange quark mass on the basis of a Nambu-Jona-Lasinio type model. To a high degree of accuracy, they are presented as relatively simple elementary functions. This allows for easy computation for any reasonable range of baryon chemical potential and strange quark mass.

Original languageEnglish (US)
Article number054028
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume75
Issue number5
DOIs
StatePublished - Mar 27 2007

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