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arXiv · hep-ph/9910550

Generalized Pions in Dense QCD

Mannque Rho·Andreas Wirzba·Ismail Zahed
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Abstract

QCD superconductors in the color-flavor-locked (CFL) phase sustain light Goldstone modes (that will be referred to as generalized pions) that can be described as pairs of particle and/or hole excitations around a gapped Fermi surface. In weak coupling and to leading logarithm accuracy, their form factor, mass and decay constant can be evaluated exactly. These modes are found to satisfy an axial-Ward-identity, constraining the mass of the Goldstone modes in the CFL phase.

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Mannque Rho, Andreas Wirzba, Ismail Zahed. 1999-12-30. Generalized Pions in Dense QCD. https://doi.org/10.1016/s0370-2693(99)01420-3

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