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

Matteo Cacciari; Luigi Del Debbio; José R. Espinosa; Antonio D. Polosa; Massimo Testa

doi:10.1016/j.physletb.2015.12.053

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

Matteo Cacciari, Luigi Del Debbio, José R. Espinosa, Antonio D. Polosa, Massimo Testa

Research output: Contribution to journal › Article › Research › peer-review

8 Citations (Scopus)

Abstract

© 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.

Original language	English
Pages (from-to)	476-481
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	753
DOIs	https://doi.org/10.1016/j.physletb.2015.12.053
Publication status	Published - 10 Feb 2016

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title = "A note on the fate of the Landau-Yang theorem in non-Abelian gauge theories",

abstract = "{\textcopyright} 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.",

author = "Matteo Cacciari and {Del Debbio}, Luigi and Espinosa, {Jos{\'e} R.} and Polosa, {Antonio D.} and Massimo Testa",

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A note on the fate of the Landau-Yang theorem in non-Abelian gauge theories. / Cacciari, Matteo; Del Debbio, Luigi; Espinosa, José R.; Polosa, Antonio D.; Testa, Massimo.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 753, 10.02.2016, p. 476-481.

Research output: Contribution to journal › Article › Research › peer-review

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 -