Five-dimensional spinor helicity for all masses and spins
Journal Article
·
· Journal of High Energy Physics (Online)
- Brown Univ., Providence, RI (United States)
- Brown Univ., Providence, RI (United States); Harvard Univ., Cambridge, MA (United States)
- Princeton Univ., NJ (United States)
We develop a spinor helicity formalism for five-dimensional scattering amplitudes of any mass and spin configuration. While five-dimensional spinor helicity variables have been previously studied in the context of $$\mathcal{N}$$ = 2, 4 supersymmetric Yang-Mills scattering amplitudes with spin less than two [1], we propose an alternative viewpoint that stems from d-dimensional spinor helicity variables avoiding the decomposition of a massive momentum into the sum of two massless momenta. By enumerating all possible independent little group tensors, we systematically build the full space of five-dimensional three-point tree-level scattering amplitudes for any configuration of spins and masses. Furthermore, we provide a prescription for computing the high energy limit of scattering amplitudes written in our spinor helicity variables. We also expect that our formalism will be applicable to effective field theories with higher spin, in particular, the scattering of highly spinning black holes in five dimensions.
- Research Organization:
- Brown Univ., Providence, RI (United States); Brown University, Providence, RI (United States)
- Sponsoring Organization:
- Simons Investigator; USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- SC0010010
- OSTI ID:
- 3006317
- Alternate ID(s):
- OSTI ID: 2571356
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 7 Vol. 2025; ISSN 1029-8479
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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