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arXiv · 2110.13225

Exotic Higgs Decays to Four Taus at Future Electron-Positron Colliders

Jessie Shelton·Dong Xu
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Abstract

We study the prospects for the exotic Higgs decay mode $h\to ss\to 4\tau$ at planned electron-positron colliders in the case where the beyond-the-Standard Model particle $s$ is too light to decay into $b \bar b$ pairs. We find that with 5 ab$^{-1}$ of unpolarized collisions at 240 GeV, the branching ratio into this final state can be constrained to be below $\sim 1.3\times 10^{-4}$ at 95\% CL, depending on the mass of $s$ and the assumed tracking efficiency.

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Jessie Shelton, Dong Xu. 2021-10-25. Exotic Higgs Decays to Four Taus at Future Electron-Positron Colliders. https://arxiv.org/abs/2110.13225

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