Generalized Ward identity and gauge invariance of the color-superconducting gap

2004/01/21 by Defu Hou, Qun Wang, Dirk H. Rischke
Mathematics · Physics and Astronomy · #Color superconductivity #Covariant transformation #Gauge (firearms) #Gauge boson #Gauge fixing #Gauge theory #Identity (music) #Independence (probability theory) #Mathematical physics #Mathematics #Particle physics #Physics #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #Quantum, superfluid, helium dynamics #Quark #Quasiparticle #Statistics #Strange matter #Superconductivity #Theoretical physics #hep-ph

paper · pdf · doi:10.1103/physrevd.69.071501

published as Phys.Rev. D69 (2004) 071501 · 5 pages, 1 Postscript figure, uses Revtex

arxiv created 2004/01/21 · openalex publication_date 2004/04/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We derive a generalized Ward identity for color-superconducting quark matter via the functional integral approach. The identity implies the gauge independence of the color-superconducting gap parameter on the quasiparticle mass shell to subleading order in the covariant gauge.

Citations

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