Hints for a non-standard Higgs boson from the LHC

TL;DR

This paper suggests that recent LHC data hints at a non-standard Higgs boson with significant invisible decay into Dark Matter, which can be tested by current experiments like Xenon100 and LHC.

Contribution

It proposes a specific Dark Matter model explaining the Higgs decay hints and predicts observable signals for ongoing experiments.

Findings

Higgs boson may have ~50% invisible decay branching ratio

Higgs mass around 143 GeV is favored by data

Dark Matter mass predicted around 50 GeV

Abstract

We reconsider Higgs boson invisible decays into Dark Matter in the light of recent Higgs searches at the LHC. Present hints in the CMS and ATLAS data favor a non-standard Higgs boson with approximately 50% invisible branching ratio, and mass around 143 GeV. This situation can be realized within the simplest thermal scalar singlet Dark Matter model, predicting a Dark Matter mass around 50 GeV and direct detection cross section just below present bound. The present runs of the Xenon100 and LHC experiments can test this possibility.