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 compositeness 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. © 2013 The Author(s).
CITATION STYLE
Christensen, N. D., de Aquino, P., Deutschmann, N., Duhr, C., Fuks, B., Garcia-Cely, C., … Takaesu, Y. (2013). Simulating spin-3/2 particles at colliders. European Physical Journal C, 73(10), 1–23. https://doi.org/10.1140/epjc/s10052-013-2580-x
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