Spinor-Helicity Three-Point Amplitudes from Local Cubic Interactions
High Energy Physics - Theory
2016-08-24 v2
Abstract
We make an explicit link between the cubic interactions of off-shell fields and the on-shell three-point amplitudes in four dimensions. Both the cubic interactions and the on-shell three-point amplitudes had been independently classified in the literature, but their relation has not been made explicit. The aim of this note is to provide such a relation and discuss similarities and differences of their constructions. For the completeness of our analysis, we also derive the covariant form of all parity-odd massless vertices.
Keywords
Cite
@article{arxiv.1605.07402,
title = {Spinor-Helicity Three-Point Amplitudes from Local Cubic Interactions},
author = {Eduardo Conde and Euihun Joung and Karapet Mkrtchyan},
journal= {arXiv preprint arXiv:1605.07402},
year = {2016}
}
Comments
Published version in JHEP