Hamburg 2016 – scientific programme

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T: Fachverband Teilchenphysik

T 56: Beyond the Standard Model (Theorie)

T 56.9: Talk

Tuesday, March 1, 2016, 18:45–19:00, VMP8 SR 106

Exceptional Dark Matter — •Jakob Schwichtenberg — Institut für Theoretische Teilchenphysik, Karlsruhe Institute of Technology, Engesserstraße 7, D-76131 Karlsruhe, Germany

We discuss fermionic dark matter candidates in non-supersymmetric E₆ Grand Unification. The exceptional group E₆ is perfectly suited for such a study, because of its unique status among the viable groups and because of the fact that we do not need to add anything by hand: dark matter candidates are contained in the fundamental representation of E₆ which contains at the same time the standard model fermions. The stability of the candidates is guaranteed by a remnant discrete symmetry that originates when the E₆ gauge symmetry is broken spontaneously. By restricting to the lowest-dimensional Higgs representations that couple to fermions and minimal fine-tuning, we end up with a viable candidate that can be produced with the correct relic abundance and could be detected in the near future.