Color superconductivity with determinant interaction in strange quark matter

Details Color superconductivity with determinant interaction in strange quark matter Color superconductivity with determinant interaction in strange quark matter

2006-05-21

arxiv.org/abs/hep-ph/0605223v2

Phys.Rev. D74 (2006) 054024

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages including 7 figures, References added, To appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.74.054024

We investigate the effect of 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 minimisation 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 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.

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