http://arxiv.org/abs/1703.10916
We study an effective field theory which includes the Standard Model extended by a Dark Sector consisting of two fermionic $SU(2)_{L}$-doublets. A $Z_2$ parity guarantees that, after electroweak symmetry breaking, the lightest neutral particle is stable, acting as a WIMP. The dark sector interacts with the Higgs and gauge bosons through renormalizable and non-renormalizable $d=5$ operators. We find that a WIMP with a mass around the electroweak scale, i.e. accessible at the LHC, is consistent with collider and astrophysical data only when non-trivial magnetic dipole interactions with the gauge bosons exist.
D. Karamitros
Mon, 3 Apr 17
7/38
Comments: 14 pages. To appear in the Proceedings of Corfu Summer Institute 2016 “School and Workshops on Elementary Particle Physics and Gravity” September 2016 Corfu, Greece
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