Semidark Higgs boson decays: Sweeping the Higgs neutrino floor

@article{AguilarSaavedra2022SemidarkHB,
  title={Semidark Higgs boson decays: Sweeping the Higgs neutrino floor},
  author={Juan Antonio Aguilar-Saavedra and J. M. Cano and David G. Cerde{\~n}o and J. M. No},
  journal={Physical Review D},
  year={2022}
}
We study exotic Higgs decays h → ZX , with X an invisible beyond the Standard Model (SM) particle, resulting in a semi-dark final state. Such exotic Higgs decays may occur in theories of axion-like-particles (ALPs), dark photons or pseudoscalar mediators between the SM and dark matter. The SM process h → Zν ¯ ν represents an irreducible “neutrino floor” background to these new physics searches, providing also a target experimental sensitivity for them. We analyze h → Z + invisible searches at the… 

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References

SHOWING 1-10 OF 91 REFERENCES

Search for low-mass dilepton resonances in Higgs boson decays to four-lepton final states in proton-proton collisions at s = 13 TeV.

A search for low-mass dilepton resonances in Higgs boson decays is conducted in the four-lepton final state. The decay is assumed to proceed via a pair of beyond the standard model particles, or one

Probing ALP-sterile neutrino couplings at the LHC

In this work, prospects to probe an overlooked facet of axion-like particles (ALPs) — their potential couplings to sterile neutrinos — are presented. We found that mono-photon searches have the

The Dark Photon

The dark photon is a new gauge boson whose existence has been conjectured. It is dark because it arises from a symmetry of a hypothetical dark sector comprising particles completely neutral under the
...