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Gapless formation in the $K^0$ condensed color-flavor locked quark matter : a model-independent treatment

Xiao-Bing Zhang·J. I. Kapusta
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Abstract

The electric/color neutral solution and the critical conditions for gapless formation are investigated in the $K^0$ condensed color-flavor locked matter. We point out that there exist no longer gapless modes for down-strange quark pairing while the gapless phenomenon for up-strange one is dominated in the $K^0$ condensed environment. In a model-independent way, the phase transition to the resulting gapless phase is found to be of first-order. The novel phase structure implies that the chromomagnetic instability happens in the previous-predicted gapless phase might be removed at least partly.

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Xiao-Bing Zhang, J. I. Kapusta. 2006-05-11. Gapless formation in the $K^0$ condensed color-flavor locked quark matter : a model-independent treatment. https://arxiv.org/abs/hep-ph/0605138

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