Spinor-helicity three-point amplitudes from local cubic interactions
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Publication:1639011
DOI10.1007/JHEP08(2016)040zbMATH Open1390.83234arXiv1605.07402MaRDI QIDQ1639011
Author name not available (Why is that?)
Publication date: 12 June 2018
Published in: (Search for Journal in Brave)
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.
Full work available at URL: https://arxiv.org/abs/1605.07402
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