Higgs decays to $\gamma$ and invisible particles in the standard model

Abstract

Using the Higgs boson mass $m_h=125$ GeV, the radiative Higgs decays $h\to \gamma {\nu }_l{\bar{\nu }}_l$ with ${\nu }_l={\nu }_e,{\nu }_{\mu }$ and ${\nu }_{\tau }$ are analyzed in the standard model. Our calculation shows that the inclusive width of these processes, i.e., the sum of $\Gamma (h\to \gamma {\nu }_l{\bar{\nu }}_l)$ for ${\nu }_l={\nu }_e,{\nu }_{\mu },{\nu }_{\tau }$, is $1.41$ keV, which is about $15\%$ of $\Gamma (h\to \gamma \gamma )$. Therefore, the observation of these channels in the future precise experiments may provide us some useful information on the Higgs physics both in the standard model and in its possible extensions.

7 pages, 3 figures

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• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
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Cited by in corpus (6)

• Search for Higgs and $Z$ Boson Decays to $J/\psi \gamma$ and ${\rm Y}(nS)\gamma$ with the ATLAS Detector
• Dark photons and resonant monophoton signatures in Higgs boson decays at the LHC
• Dark-Photon searches via Higgs-boson production at the LHC
• Rare and exclusive few-body decays of the Higgs, Z, W bosons, and the top quark
• Rare few-body decays of the Standard Model Higgs boson
• One-loop contributions to the decay $H\to {\nu }_l{\bar{\nu }}_l\gamma$ in standard model revisited