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arXiv · 1507.02673

Higgs Decay $h\to\mu\tau$ with Minimal Flavor Violation

Xiao-Gang He·Jusak Tandean·Ya-Juan Zheng
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Abstract

We consider the tentative indication of flavor-violating Higgs boson decay $h\to\mu\tau$ recently reported in the CMS experiment within the framework of minimal flavor violation. Specifically, we adopt the standard model extended with the seesaw mechanism involving right-handed neutrinos plus effective dimension-six operators satisfying the minimal flavor violation principle in the lepton sector. We find that it is possible to accommodate the CMS $h\to\mu\tau$ signal interpretation provided that the right-handed neutrinos couple to the Higgs boson in some nontrivial way. We take into account empirical constraints from other lepton-flavor-violating processes and discuss how future searches for the $\mu\to e\gamma$ decay and $\mu\to e$ conversion in nuclei may further probe the lepton-flavor-violating Higgs couplings.

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Xiao-Gang He, Jusak Tandean, Ya-Juan Zheng. 2015-07-09. Higgs Decay $h\to\mu\tau$ with Minimal Flavor Violation. https://doi.org/10.1007/jhep09(2015)093

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