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arXiv · 1602.01372

On Exclusive $h \to V \ell^+ \ell^-$ Decays

Pietro Colangelo·Fulvia De Fazio·Pietro Santorelli
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Abstract

We study a set of exclusive decay modes of the Standard Model Higgs boson into a vector meson and a dilepton pair: $h\to V \ell^+ \ell^-$, with $V=Υ, J/ψ,ϕ$, and $\ell=μ, τ$, determining the decay rates, the dilepton mass spectra and the $V$ longitudinal helicity fraction distributions. In the same framework, we analyze the exclusive modes into neutrino pairs $h\to V ν\bar ν$. We also discuss the implications of the recent CMS and ATLAS results for the lepton flavor-changing process $h\to τ^+ μ^-$ on the $h\to V τ^+ μ^-$ decay modes.

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Pietro Colangelo, Fulvia De Fazio, Pietro Santorelli. 2016-07-11. On Exclusive $h \to V \ell^+ \ell^-$ Decays. https://doi.org/10.1016/j.physletb.2016.07.002

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