Invisible Higgs Decays to Hooperons in the NMSSM

@inproceedings{Butter2015InvisibleHD,
  title={Invisible Higgs Decays to Hooperons in the NMSSM},
  author={Anja Butter and Tilman Plehn and Michael Rauch and Dirk Zerwas and Sophie Henrot-Versill'e and Remi Lafaye},
  year={2015}
}
The galactic center excess of gamma ray photons can be naturally explained by light Majorana fermions in combination with a pseudoscalar mediator. The NMSSM provides exactly these ingredients. We show that for neutralinos with a significant singlino component the galactic center excess can be linked to invisible decays of the Standard-Model-like Higgs at the LHC. We find predictions for invisible Higgs branching ratios in excess of 50 percent, easily accessible at the LHC. Constraining the… 

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