t-channel dark matter models – a whitepaper

Arina, Chiara;et.al.
(2025) European Physical Journal C — Vol. 85 (2025)

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This report, summarising work achieved in the context of the LHC Dark Matter Working Group, investigates the phenomenology of t-channel dark matter models, spanning minimal setups with a single dark matter candidate and mediator to more complex constructions closer to UV-complete models. For each considered class of models, we examine collider, cosmological and astrophysical implications. In addition, we explore scenarios with either promptly decaying or long-lived particles, as well as featuring diverse dark matter production mechanisms in the early universe. By providing a unified analysis framework, numerical tools and guidelines, this work aims to support future experimental and theoretical efforts in exploring t-channel dark matter models at colliders and in cosmology.
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Arina, C., & et al. (2025). t-channel dark matter models – a whitepaper. European Physical Journal C, 85. https://doi.org/10.1140/epjc/s10052-025-14635-7 (Original work published 2025)