LHC-friendly minimal freeze-in models Auteur(s): Bélanger G. (Article) Publié: Journal Of High Energy Physics, vol. 02 p.186 (2019) Texte intégral en Openaccess : Ref HAL: hal-01937704_v1 Ref Arxiv: 1811.05478 Ref INSPIRE: 1703652 DOI: 10.1007/JHEP02(2019)186 WoS: 000459963500007 Ref. & Cit.: NASA ADS Exporter : BibTex | endNote 17 Citations Résumé: We propose simple freeze-in models where the observed dark matter abundance is explained via the decay of an electrically charged and/or coloured parent particle into Feebly Interacting Massive Particles (FIMP). The parent particle is long-lived and yields a wide variety of LHC signatures depending on its lifetime and quantum numbers. We assess the current constraints and future high luminosity reach of these scenarios at the LHC from searches for heavy stable charged particles, disappearing tracks, displaced vertices and displaced leptons. We show that the LHC constitutes a powerful probe of freeze-in dark matter and can further provide interesting insights on the validity of vanilla baryogenesis and leptogenesis scenarios. |