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arXiv · hep-ph/0305108

Gauge dependence identities for color superconducting QCD

A. Gerhold·A. Rebhan
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Abstract

Using generalized Nielsen identities a formal proof is given that the fermionic quasiparticle dispersion relations in a color superconductor are gauge independent. This turns out to involve gluonic tadpoles which are calculated to one-loop order in a two-flavor color superconductor. Regarding the appearance of gluon tadpoles, we argue that in QCD the color superconducting phase is automatically color neutral.

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A. Gerhold, A. Rebhan. 2003-05-14. Gauge dependence identities for color superconducting QCD. https://doi.org/10.1103/physrevd.68.011502

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