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arXiv · hep-ph/0112206

Mass-Induced Crystalline Color Superconductivity

Joydip Kundu·Krishna Rajagopal
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Abstract

We demonstrate that crystalline color superconductivity may arise as a result of pairing between massless quarks and quarks with nonzero mass m_s. Previous analyses of this phase of cold dense quark matter have all utilized a chemical potential difference δμto favor crystalline color superconductivity over ordinary BCS pairing. In any context in which crystalline color superconductivity occurs in nature, however, it will be m_s-induced. The effect of m_s is qualitatively different from that of δμin one crucial respect: m_s depresses the value of the BCS gap Δ_0 whereas δμleaves Δ_0 unchanged. This effect in the BCS phase must be taken into account before m_s-induced and δμ-induced crystalline color superconductivity can sensibly be compared.

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Joydip Kundu, Krishna Rajagopal. 2002-01-09. Mass-Induced Crystalline Color Superconductivity. https://doi.org/10.1103/physrevd.65.094022

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