Document Type
Article
Publication Date
1-1-1992
Abstract
The tau lepton electron branching fraction has been measured with the CLEO II detector at the Cornell Electron Storage Ring as Be=0.17490.00140.0022, with the first error statistical and the second systematic. The measurement involves counting electron-positron annihilation events in which both taus decay to electrons, and normalizing to the number of tau-pair decays expected from the measured luminosity. Detected photons in these events constitute a definitive observation of tau decay radiation. © 1992 The American Physical Society.
Recommended Citation
Akerib, D. S.; Barish, B.; Chadha, M.; Cowen, D. F.; Eigen, G.; Miller, J. S.; Urheim, J.; Weinstein, A. J.; Acosta, D.; Masek, G.; Ong, B.; Paar, H.; Sivertz, M.; Bean, A.; Gronberg, J.; Kutschke, R.; Menary, S.; Morrison, R. J.; Nelson, H. N.; Richman, J. D.; Tajima, H.; Schmidt, D.; Sperka, D.; Witherell, M. S.; Procario, M.; Yang, S.; Daoudi, M.; Ford, W. T.; Johnson, D. R.; Lingel, K.; and Lohner, M., "Measurement of the tau lepton electronic branching fraction" (1992). Physics Faculty Publications. 68.
https://digitalcommons.bowdoin.edu/physics-faculty-publications/68