Unlocking of color and flavor in color-superconducting quark matter
D. Nickel, R. Alkofer, J. Wambach
DOI 10.1103/PhysRevD.74.114015 · Physical Review D
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Abstract
The role of the strange quark mass for the phase structure of QCD at nonvanishing densities is studied by employing a recently developed self-consistent truncation scheme for the Dyson-Schwinger equations of the quark propagators in Landau gauge. Hereby the medium modification of the effective quark interaction by the polarization of gluons is implemented. Taking into account this effect results in significantly smaller dynamical quark masses at the Fermi surface. Because of this reduction the color-flavor locked phase is always the preferred color-superconducting phase at zero temperature and for a realistic strange quark mass.
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