How do chiral condensates affect color superconducting quark matter under charge neutrality constraints?

Details How do chiral condensates affect color superconducting quark matter under charge neutrality constraints? How do chiral condensates affect color superconducting quark matter under charge neutrality constraints?

2004-12-26

arxiv.org/abs/hep-ph/0412382v2

Phys.Lett. B615 (2005) 102-110

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 5 figures, Fig.3 is added for a discussion on the disappearance of the gapless CFL

Scientific paper

10.1016/j.physletb.2005.04.017

We investigate the effects of the dynamical formation of the chiral condensates on color superconducting phases under the electric and color neutrality constraints at vanishing temperature. We shall show that the phase appearing next to the color-flavor-locked (CFL) phase down in density depends on the strength of the diquark coupling. In particular, the gapless CFL (gCFL) phase is realized only in a weak coupling regime. We give a qualitative argument on why the gCFL phase in the weak coupling region is replaced by some other phases in the strong coupling, once the competition between dynamical chiral symmetry breaking and the Cooper pair formation is taken into account.

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