Münster 2017 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 41: Beyond the Standard Model (Theorie) 2

T 41.1: Vortrag

Dienstag, 28. März 2017, 11:00–11:15, VSH 19

Towards the next generation of simplified dark matter models at the LHC — Jan Heisig, Michael Krämer, and •Philipp Müllender — Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen, Deutschland

Simplified models have become a standard tool for a bottom-up exploration of dark matter models. However, in general simplified dark matter models do not respect gauge invariance and as a consequence perturbative unitarity may be violated for either too large couplings or too large center-of-mass energies. New mechanisms have to be introduced to these simplified extensions of the SM to ensure perturbative unitarity. One possible solution to these problems is to insist on gauge invariance in the introduced interactions. It is known that demanding gauge invariance strongly constrains the couplings of the mediator to the SM particles and to dark matter. Nevertheless, these models enrich the phenomenology of dark matter searches at the LHC and provide a more realistic ansatz to the underlying theory. We explore possible breakdowns of overly simplified dark matter models which are not UV complete and discuss the simplest completion to these models to ensure self-consistency.