2016/05/31 by Eduardo Conde, Euihun Joung, Karapet Mkrtchyan
Mathematics · Physics and Astronomy · #Amplitude #Black Holes and Theoretical Physics #Combinatorics #Completeness (order theory) #Cosmology and Gravitation Theories #Covariant transformation #Cubic form #Geometry #Helicity #Massless particle #Mathematical analysis #Mathematical physics #Mathematics #Parity (physics) #Particle physics theoretical and experimental studies #Physics #Point (geometry) #Quantum electrodynamics #Quantum mechanics #Shell (structure) #Spinor #Theoretical physics #hep-th
paper · pdf · doi:10.1007/jhep08(2016)040
Published version in JHEP
arxiv created 2016/07/28 · openalex publication_date 2016/08/01 · arxiv updated 2016/08/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.