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Massive scattering amplitudes in six dimensions

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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Official URL: https://dx.doi.org/10.1007/JHEP03(2019)198

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
Additional Information: Copyright for this article belongs to Springer Verlag
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Depositing User: Id for Latest eprints
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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