Correlation of $h\to \gamma \gamma$ and $Z\gamma$ in Type-II seesaw neutrino model

Abstract

We study the charged scalar contributions to the Higgs decay channels of $h\to \gamma \gamma$ and $h\to Z\gamma$ in the Type-II seesaw neutrino model. In most of the allowed parameter space in the model, the new contribution to $h\to Z\gamma$ is positively correlated with that to $h\to \gamma \gamma$. If the current excess of the $h\to \gamma \gamma$ rate measured by the ATLAS Collaboration persists, the $h\to Z\gamma$ rate should be also larger than the corresponding standard model prediction. We demonstrate that the anti-correlation between $h\to \gamma \gamma$ and $h\to Z\gamma$ only exists in some special region.

11 pages, 3 figures, Title changed, Revised version published in PLB723 (2013) 156

References in corpus (7)

• 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
• Vacuum Stability, Perturbativity, EWPD and Higgs-to-diphoton rate in Type II Seesaw Models
• New Scalar Contributions to $h\to Z\gamma$
• Vacuum Stability Constraints on the Enhancement of the Higgs to Diphoton Rate in the MSSM
• Higgs Uncovering Light Scalar Remnants of High Scale Matter Unification
• Enhanced diphoton Higgs decay rate and isospin symmetric Higgs boson

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