Studies on $\tau$ decays at Belle II

Laura Zani

03 July 2023

Abstract: Tau leptons offer a very clean environment to study the process of hadronization and are powerful tools to probe physics beyond the Standard Model (SM), which might be enhanced due to mass-dependent couplings. The Belle II experiment, installed at SuperKEKB asymmetric energy electron-positron collider, will collect the world’s largest sample of tau pair events 𝑒+π‘’βˆ’ β†’ 𝜏+πœβˆ’ . Direct searches for new invisible mediators, charged lepton flavor violation in 𝜏 decays, and tests of the SM via precision measurements of 𝜏 lepton properties and couplings are reported in the following article. The results presented here rely on the data collected by Belle II during 2019-2021.

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 Record created 2023-07-03, last modified 2023-07-10

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