Nonleptonic weak processes in spin-one color superconducting quark matter

Journal Article · Mon Feb 15 04:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.045021· OSTI ID:21409347

Xinyang, Wang ^[1]; Malekzadeh, Hossein ^[2]; Shovkovy, Igor A ^[1]

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1. Department of Physics, Arizona State University, Tempe, Arizona 85287 (United States)
2. Institut fuer Theoretische Physik, Westfaelische Wilhelms-Universitaet Muenster, D-48149 Muenster (Germany)

The nonleptonic weak processes s+u{yields}u+d and u+d{yields}s+u are known to dominate the dissipation mechanism responsible for the viscosity of strange quark matter in its normal phase. The rates of such processes remain unknown for many color superconducting phases of quark matter. In this paper, we partially fill up the gap by calculating the difference of the rates of the two nonleptonic weak processes in four transverse spin-one color superconducting phases of quark matter (slightly) out of {beta} equilibrium. The four phases studied are the color-spin locked phase, the polar phase, the planar phase, and the A phase. In the limit of vanishing color superconducting gap, we reproduce the known results in the normal phase. In the general case, the rates are suppressed relative to the normal phase. The degree of the suppression is determined by the structure of the gap function in momentum space, which in turn is determined by the pairing pattern of quarks. At low temperatures, the rate is dominated by the ungapped modes. In this limit, the strongest suppression of the rate occurs in the color-spin-locked phase, and the weakest is in the polar phase and the A phase.

• OSTI ID: 21409347
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 4 Vol. 81; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BASIC INTERACTIONS
COLOR MODEL
COMPOSITE MODELS
ELEMENTARY PARTICLES
EQUILIBRIUM
FERMIONS
INTERACTIONS
MATHEMATICAL MODELS
MATTER
PARTICLE MODELS
PARTICLE PROPERTIES
QUARK MATTER
QUARK MODEL
QUARKS
S QUARKS
SPIN
STRANGE PARTICLES
VISCOSITY
WEAK INTERACTIONS