Trigger efficiencies at BES III
High Energy Physics - Experiment
2011-01-27 v1 Instrumentation and Detectors
Abstract
Trigger efficiencies at BES III were determined for both the J/psi and psi' data taking of 2009. Both dedicated runs and physics datasets are used; efficiencies are presented for Bhabha-scattering events, generic hadronic decay events involving charged tracks, dimuon events and psi' -> pi+pi-J/psi, J/psi -> l+l- events (l an electron or muon). The efficiencies are found to lie well above 99% for all relevant physics cases, thus fulfilling the BES III design specifications.
Cite
@article{arxiv.1011.2825,
title = {Trigger efficiencies at BES III},
author = {N. Berger and K. Zhu and Z. A. Liu and D. P. Jin and H. Xu and W. X. Gong and K. Wang and G. F. Cao},
journal= {arXiv preprint arXiv:1011.2825},
year = {2011}
}
Comments
6 pages, 4 figures