Massive on-shell supersymmetric scattering amplitudes
Abstract
We introduce a manifestly little group covariant on-shell superspace for massive particles in four dimensions using the massive spinor helicity formalism. This enables us to construct massive on-shell superfields and fully utilize on-shell symmetry considerations to derive all possible N = 1 three-particle amplitudes for particles of spin as high as one, as well as some simple amplitudes for particles of any spin. Throughout, the conceptual and computational simplicity of this approach is exhibited.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- October 2019
- DOI:
- 10.1007/JHEP10(2019)092
- arXiv:
- arXiv:1902.07204
- Bibcode:
- 2019JHEP...10..092H
- Keywords:
-
- Scattering Amplitudes;
- Superspaces;
- High Energy Physics - Theory;
- High Energy Physics - Phenomenology
- E-Print:
- v2: Small Corrections, additional discussion of higher spin multiplets