Simulating spin-3/2 particles at colliders

Christensen, Neil;Mattelaer, Olivier;et.al.
(2013) European Physical Journal C. Particles and Fields — Vol. C73, n° 2580 (2013)

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Abstract
Support for interactions of spin-3/2 particles is implemented in the FeynRules and ALOHA packages and tested with the MadGraph 5 and CalcHEP event generators in the context of three phenomenological applications. In the first, we implement a spin-3/2 Majorana gravitino field, as in local supersymmetric models, and study gravitino and gluino pair-production. In the second, a spin-3/2 Dirac top-quark excitation, inspired from compositness models, is implemented. We then investigate both top-quark excitation and top-quark pair-production. In the third, a general effective operator for a spin-3/2 Dirac quark excitation is implemented, followed by a calculation of the angular distribution of the s-channel production mechanism.
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Christensen, N., Mattelaer, O., & et al. (2013). Simulating spin-3/2 particles at colliders. European Physical Journal C. Particles and Fields, C73(2580). https://doi.org/10.1140/epjc/s10052-013-2580-x (Original work published 2013)