TY - JOUR
T1 - A note on the fate of the Landau-Yang theorem in non-Abelian gauge theories
AU - Cacciari, Matteo
AU - Del Debbio, Luigi
AU - Espinosa, José R.
AU - Polosa, Antonio D.
AU - Testa, Massimo
PY - 2016/2/10
Y1 - 2016/2/10
N2 - © 2015 The Authors. 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.
AB - © 2015 The Authors. 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.
U2 - 10.1016/j.physletb.2015.12.053
DO - 10.1016/j.physletb.2015.12.053
M3 - Article
VL - 753
SP - 476
EP - 481
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
ER -