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A note on the fate of the Landau-Yang theorem in non-Abelian gauge theories

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Original languageUndefined/Unknown
JournalPhysics Letters B
Publication statusPublished - 21 Dec 2015


Using elementary considerations of Lorentz invariance, Bose symmetry and BRST invariance, we argue why the decay of a massive color-octet vector state into a pair of on-shell massless gluons is possible in a non-Abelian SU(N) Yang-Mills theory, we constrain the form of the amplitude of the process and offer a simple understanding of these results in terms of effective-action operators.

    Research areas

  • hep-ph, hep-th

ID: 25151696