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arXiv · hep-ph/0509307

Density dependence of quark masses and stability of color-flavor locked phases

Xiao-Bing Zhang·Xue-Qian Li
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Abstract

Considering the density dependence of quark masses, we investigate the color-flavor-locked matter and its stability relative to the ( unpaired ) strange quark matter. We find that, when the current mass of strange quark $m_s$ is small, the strange quark matter remains stable for the moderate baryon densities. When $m_s$ is large, the gapless phase of the color-flavor-locked matter is found to be difficult to be stable. A schematic phase diagram of three-flavor quark matter is presented, in which the color-flavor-locked phase region is suppressed in comparison with the previous results.

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Xiao-Bing Zhang, Xue-Qian Li. 2005-09-27. Density dependence of quark masses and stability of color-flavor locked phases. https://doi.org/10.1103/physrevd.72.054021

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