We report on electron identification methods and their performance in the Belle experiment at the KEK-B asymmetric B-Factory e+e− storage ring. Electrons are selected using a likelihood approach that takes information from the electromagnetic calorimeter, the central drift chamber, and the silica aerogel Cherenkov counters as input. We achieve an electron identification efficiency of (92.4±0.4) with a π± fake rate of (0.25±0.02) for the momentum range between 1.0 GeV/c and 3.0 GeV/c in laboratory frame.
@article{arxiv.hep-ex/0108044,
title = {Electron Identification in Belle},
author = {K. Hanagaki and H. Kakuno and H. Ikeda and T. Iijima and T. Tsukamoto},
journal= {arXiv preprint arXiv:hep-ex/0108044},
year = {2008}
}