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Jul 26 – 30, 2021
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Latest dark sector searches at the Belle Experiment

Jul 26, 2021, 5:30 PM


Parallel session talk Flavour Physics and CP Violation T08: Flavour Physics and CP Violation


Seokhee Park (BELLE (BELLE II Experiment))


The Belle experiment has accumulated close to $1\,{\rm ab}^{-1}$ of data in electron-positron collisions at center-of-mass energies around various $\Upsilon(nS)$ resonances. These data can be used to perform a number of new physics searches in the context of dark sector with an unprecedented precision. We present for the first time the results of a search of the dark photon in $B$-meson decays, the search for dark matter in bottomonium decays, as well as the latest results in the search for dark forces, via direct production, or in the decay of mesons. These competitive results can be used to severely constrain new physics scenarios.

First author S. Nishida
Collaboration / Activity Belle

Primary author

Shohei Nishida (BELLE (BELLE II Experiment))

Presentation materials