Perturbative extension of the standard model with a 125 GeV Higgs and Magnetic Dark Matter

Abstract

We introduce a perturbative extension of the standard model featuring a new dark matter sector together with a 125 GeV Higgs. The new sector consists of a vector-like heavy electron E, a complex scalar electron S and a standard model singlet Dirac fermion χ. The interactions among the dark matter candidate χand the standard model particles occur via loop-induced processes involving the operator SEχy, with y being the Yukawa-like coupling. The model is an explicit underlying realization of the light magnetic dark matter effective model introduced earlier to alleviate the tension among several direct dark matter search experiments. We further constrain the parameters of the underlying theory using results from the Large Hadron Collider. The extension can accommodate the recently observed properties of the Higgs-like state and leads to interesting predictions. Finally we show that the model's collider phenomenology and constraints nicely complement the ones coming from dark matter searches.

Final version to match the one published in Phys. Rev. D

References in corpus (5)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Dark Matter Results from 225 Live Days of XENON100 Data
• First results from DAMA/LIBRA and the combined results with DAMA/NaI
• A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope

Cited by in corpus (9)

• A Model Independent Approach to Inelastic Dark Matter Scattering
• X-ray Lines from Dark Matter: The Good, The Bad, and The Unlikely
• Modified Higgs Sectors and NLO Associated Production
• Conformal Extensions of the Standard Model with Veltman Conditions
• Phenomenology of the Generalised Scotogenic Model with Fermionic Dark Matter
• Dark matter direct detection of a fermionic singlet at one loop
• First Order Electroweak Phase Transition from (Non)Conformal Extensions of the Standard Model
• LUX Constraints on Magnetic Dark Matter in the $S\bar{E}\chi$y Model with(out) Naturality
• Magnetic dipole moment of neutral particles from quantum corrections at two-loop order