Speaker
Laura Zani
(CPPM - Centre de Physique des Particules de Marseille)
Description
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.
