Formation of gapless phases of K{sup 0} condensed color-flavor locked superconducting quark matter

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

DOI:https://doi.org/10.1103/PHYSREVD.75.054028· OSTI ID:21020075

Xiaobing, Zhang; Kapusta, J I ^[1]

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1. Department of Physics, Nankai University, Tianjin 300071 (China) and School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

Electric and color neutral solutions, and the critical conditions for the formation of gapless color superconductors, are investigated in K{sup 0} 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.

• OSTI ID: 21020075
• 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
ACCURACY
BARYONS
CALCULATION METHODS
COLOR MODEL
DISPERSION RELATIONS
FLAVOR MODEL
KAONS NEUTRAL
MATHEMATICAL SOLUTIONS
POTENTIALS
QUARK MATTER
REST MASS
S QUARKS
SUPERCONDUCTORS