Effects of density-dependent quark mass on phase diagram of three-flavor quark matter

Details Effects of density-dependent quark mass on phase diagram of three-flavor quark matter Effects of density-dependent quark mass on phase diagram of three-flavor quark matter

2005-07-07

arxiv.org/abs/hep-ph/0507079v1

Commun.Theor.Phys.45:691-696,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 figures

Scientific paper

10.1088/0253-6102/45/4/024

Considering the density dependence of quark mass, we investigate the phase transition between the (unpaired) strange quark matter and the color-flavor-locked matter, which are supposed to be two candidates for the ground state of strongly interacting matter. We find that if the current mass of strange quark $m_s$ is small, the strange quark matter remains stable unless the baryon density is very high. If $m_s$ is large, the phase transition from the strange quark matter to the color-flavor-locked matter in particular to its gapless phase is found to be different from the results predicted by previous works. A complicated phase diagram of three-flavor quark matter is presented, in which the color-flavor-locked phase region is suppressed for moderate densities.

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