Leptonic and semileptonic decays with taus at the Belle II experiment

Sumitted to PubDB: 2020-08-04

Category: Talk, Visibility: Public

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Authors	Marco Milesi
Date	2020-07-28
Belle II Number	BELLE2-TALK-CONF-2020-042
Abstract	The lepton flavour universality predicted by the Standard Model is challenged by various measurements of b-hadron decays involving tau and light leptons. The Belle II experiment started recording first collision data in Spring 2019 and offers a unique laboratory to study lepton flavour universality in leptonic and semileptonic decays of B mesons at high precision. In this talk, we report the status of establishing first measurements of 𝐵→𝜏𝜈¯𝜏, 𝐵→𝜇𝜈¯, and 𝐵→𝐷(∗)𝜏𝜈¯𝜏 processes using the available Belle II data and discuss the future potential of investigating the 𝑅(𝐷(∗)) anomaly.
Conference	40th International Conference on High Energy Physics