TH BSM Forum

Dark mediators and dark terminators - how to save the WIMP

by Felix Kahlhoefer (DESY)

Europe/Zurich
4/2-037 - TH meeting room (CERN)

4/2-037 - TH meeting room

CERN

18
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Description
A reliable comparison of different dark matter (DM) searches requires models that satisfy certain consistency requirements like gauge invariance and perturbative unitarity. As a well-motivated example, I will discuss two-mediator DM (2MDM). The model is based on a spontaneously broken U(1)' gauge symmetry and contains a Majorana DM particle as well as two s-channel mediators, one vector (the Z') and one scalar (the dark Higgs). The presence of the two mediators affects the phenomenology of the model in important ways, leading to additional constraints but also offering new ways to avoid thermal overproduction of dark matter. I will present a global scan over the parameters of the model and explore whether thermal DM can still be viable within this model.