Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 16: Theorie: Beyond the Standard Model und Quantenfeldtheorie

T 16.4: Vortrag

Montag, 25. März 2019, 16:45–17:00, S16

Super-WIMP meets freeze-in — •Jan Heisig1 and Mathias Garny21Université catholique de Louvain — 2Technische Universität München

Non-thermalized dark matter is a cosmologically valid alternative to the paradigm of weakly interacting massive particles. For dark matter belonging to a Z2-odd sector that contains in addition a thermalized mediator particle, dark matter production proceeds in general via both the freeze- in and super-WIMP mechanism. We highlight their interplay and emphasize the connection to long-lived particles at colliders. For the explicit example of a colored t-channel mediator model we map out the entire accessible parameter space, cornered by bounds from the LHC, big bang nucleosynthesis and Lyman-alpha forest observations, respectively. We discuss prospects for the HL- and HE-LHC.

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