Color superconductivity with determinant interaction in strange quark matter

Journal Article · Fri Sep 01 04:00:00 EDT 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.054024· OSTI ID:20871112

Mishra, Amruta; Mishra, Hiranmaya ^[1]

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1. Department of Physics, Indian Institute of Technology, New Delhi-110016 (India) and Frankfurt Institute for Advanced Studies, Universitaet Frankfurt, D-60438 Frankfurt (Germany)

We investigate the effect of a six fermion determinant interaction on color superconductivity as well as on chiral symmetry breaking. Coupled mass gap equations and the superconducting gap equation are derived through the minimization of the thermodynamic potential. The effect of nonzero quark-antiquark condensates on the superconducting gap is derived. This becomes particularly relevant for the case of 2-flavor superconducting matter with unpaired strange quarks in the diquark channel. While the effect of a six fermion interaction leads to an enhancement of u-d superconductivity, due to nonvanishing strange quark-antiquark condensates, such an enhancement will be absent at higher densities for u-s or d-s superconductivity due to early (almost) vanishing of light quark-antiquark condensates.

• OSTI ID: 20871112
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 74; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
COLOR MODEL
D QUARKS
FLAVOR MODEL
MINIMIZATION
PARTICLE INTERACTIONS
POTENTIALS
REST MASS
S QUARKS
SUPERCONDUCTIVITY
SYMMETRY BREAKING
U QUARKS