Jha, R and Krishnan, C and Pavan Kumar, KV (2019) Massive scattering amplitudes in six dimensions. In: Journal of High Energy Physics, 2019 (3).
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Abstract
We show that a natural spinor-helicity formalism that can describe massive scattering amplitudes exists in D = 6 dimensions. This is arranged by having helicity spinors carry an index in the Dirac spinor 4 of the massive little group, SO(5) � Sp(4). In the high energy limit, two separate kinds of massless helicity spinors emerge as required for consistency with arXiv:0902.0981, with indices in the two SU(2)�s of the massless little group SO(4). The tensors of 4 lead to particles with arbitrary spin, and using these and demanding consistent factorization, we can fix 3� and 4-point tree amplitudes of arbitrary masses and spins: we provide examples. We discuss the high energy limit of scattering amplitudes and the Higgs mechanism in this language, and make some preliminary observations about massive BCFW recursion. © 2019, The Author(s).
| Item Type: | Journal Article |
|---|---|
| Publication: | Journal of High Energy Physics |
| Publisher: | Springer Verlag |
| Additional Information: | Copyright for this article belongs to Springer Verlag |
| Department/Centre: | Division of Physical & Mathematical Sciences > Centre for High Energy Physics |
| Date Deposited: | 29 May 2019 11:45 |
| Last Modified: | 29 May 2019 11:45 |
| URI: | http://eprints.iisc.ac.in/id/eprint/62224 |
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