On-shell effective theory for higher-spin dark matter

We apply the on-shell amplitude techniques in the domain of dark matter. Without evoking fields and Lagrangians, an effective theory for a massive spin-$S$ particle is defined in terms of on-shell amplitudes, which are written down using the massive spinor formalism. This procedure greatly simpli...

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Bibliographic Details
Main Author: Adam Falkowski, Giulia Isabella, Camila S. Machado
Format: Article
Language:English
Published: SciPost 2021-05-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.10.5.101