Track reconstruction efficiency measurement using e+e- → τ+τ- events at Belle II

Sumitted to PubDB: 2020-08-04

Category: Talk, Visibility: Public

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Authors	Laura Zani
Date	2020-07-28
Belle II Number	BELLE2-TALK-CONF-2020-052
Abstract	We present the measurement of the Belle II track reconstruction efficiency and Monte Carlo efficiency correction factors using τ-pair events, in which one τ lepton decays leptonically ( τ → lνν , l = e, μ) while the other decays hadronically into three charged pions ( τ → 3πν + nπ0). These measurements are performed using the e+e- collision data recorded during the early Phase III of data taking.
Conference	40th International Conference on High Energy Physics