Charged-lepton identification at Belle~II
Abstract
Effective particle identification capabilities are a strategic priority for the physics program of the Belle~II experiment. We describe the algorithms used at Belle~II for identifying electrons and muons and separating them from charged hadrons. We present the performance obtained by the experiment during Run 1, which consists of 428 fb-1 of data collected at the energy-asymmetric e+e- collider SuperKEKB between 2019 and 2022 at center-of-mass energies near the mass of the Υ(4S).
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