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A light plasmon mode in the color-flavor-locking phase

H. Malekzadeh·Dirk H. Rischke
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Abstract

We calculate the spectral densities of electric and magnetic gluons at zero temperature in color-superconducting quark matter in the color-flavor-locking (CFL) phase. We find a collective excitation, a plasmon, at energies smaller than two times the gap parameter and momenta smaller than about eight times the gap. The dispersion relation of this mode exhibits a minimum at some nonzero value of momentum, indicating a van Hove singularity.

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H. Malekzadeh, Dirk H. Rischke. 2006-11-10. A light plasmon mode in the color-flavor-locking phase. https://arxiv.org/abs/hep-ph/0611141

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