Debye screening and the Meissner effect in a two-flavor color superconductor

Journal Article · Tue Aug 01 04:00:00 EDT 2000 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.62.034007· OSTI ID:20217283

Rischke, Dirk H ^[1]

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1. RIKEN-BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973 (United States)

I compute the gluon self-energy in a color superconductor with two flavors of massless quarks, where condensation of Cooper pairs breaks SU(3){sub c} to SU(2){sub c}. At zero temperature, there is neither Debye screening nor a Meissner effect for the three gluons of the unbroken SU(2){sub c} subgroup. The remaining five gluons attain an electric as well as a magnetic mass. For temperatures approaching the critical temperature for the onset of color superconductivity, or for gluon momenta much larger than the color-superconducting gap, the self-energy assumes the form given by the standard hard-dense loop approximation. The gluon self-energy determines the coefficient of the kinetic term in the effective low-energy theory for the condensate fields. (c) 2000 The American Physical Society.

• OSTI ID: 20217283
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 62; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COLOR MODEL
COOPER PAIRS
FLAVOR MODEL
GLUONS
QUANTUM CHROMODYNAMICS
QUARK MATTER
SELF-ENERGY
SU-2 GROUPS
SU-3 GROUPS
SUPERCONDUCTIVITY
SYMMETRY BREAKING
THEORETICAL DATA