Search for the rare decay B0->tau+ tau- at the Belle II Experiment

Sumitted to PubDB: 2023-07-20

Category: Poster, Visibility: Public

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Authors	Cheolhun Kim
Date	April 20, 2023
Belle II Number	BELLE2-POSTER-CONF-2023-003
Abstract	We aim to search for the rare decay 𝑩𝟎 → 𝝉"𝝉# at the Belle II experiment using the superKEKB asymmetric electron-positron collider. While the standard model predicts the decay mode to have a low branching fraction, various extensions of the model expect enhancements. The results will be obtained with data samples corresponding to an integrated luminosity of 363 fb-1 collected at the 𝚼(𝟒𝑺) resonance. We use a hadronic tagging method that reconstructs fully accompanying B mesons and attempts to identify signals from the remaining part of the event. The result of this study will be the measurement or upper limit setting of the branching fraction of the decay. We present the results based on Monte Carlo simulation samples.
Conference	Spring KPS (The Korean Physical Society)