A Fermionic bi-Doublet Effective Field Theory for Dark Matter
arXiv:1703.10916
Abstract
We study an effective field theory which includes the Standard Model extended by a Dark Sector consisting of two fermionic -doublets. A 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 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.
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