Higgs precision study of the 750 GeV diphoton resonance and the 125 GeV standard model Higgs boson with Higgs-singlet mixing
Abstract
We interpret the potential observation of the 750 GeV diphoton resonance at the LHC in models, in which an S U (2 ) isospin-singlet scalar boson mixes with the standard model (SM) Higgs boson through an angle α . Allowing the singlet scalar boson to have renormalizable couplings to vectorlike leptons and quarks and introducing sizable decay width of the 750 GeV diphoton resonance into non-SM particles such as dark matters, we can explain the large production cross section σ (H2)×B (H2→γ γ ) as well as the apparent large total width of the boson without conflicts from the results obtained by previous global fits to the SM Higgs boson data.
- Publication:
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Physical Review D
- Pub Date:
- August 2016
- DOI:
- 10.1103/PhysRevD.94.033010
- arXiv:
- arXiv:1512.07853
- Bibcode:
- 2016PhRvD..94c3010C
- Keywords:
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- High Energy Physics - Phenomenology;
- High Energy Physics - Experiment
- E-Print:
- 19 pages, 2 figures, to appear in PRD