Observation of the decay mode K_L -> pi^+ pi^- e^+ e^-
High Energy Physics - Experiment
2008-11-26 v1
Abstract
We report on results of an experimental search for the K_L -> pi^+ pi^- e^+ e^- decay mode. We found 13.5 +- 4.0 events and determined its branching ratio to be (4.4 +- 1.3(stat) +- 0.5(syst))*10^{-7}. The result agrees well with the theoretical prediction.
Cite
@article{arxiv.hep-ex/9810018,
title = {Observation of the decay mode K_L -> pi^+ pi^- e^+ e^-},
author = {Y. Takeuchi and Y. Hemmi and H. Kurashige and Y. Matono and K. Murakami and T. Nomura and H. Sakamoto and N. Sasao and M. Suehiro and Y. Fukushima and Y. Ikegami and T. T. Nakamura and T. Taniguchi and M. Asai},
journal= {arXiv preprint arXiv:hep-ex/9810018},
year = {2008}
}
Comments
9 pages, 6 eps-figures, LaTeX2e, graphicx package, submitted to Physics Letters B