Observation of the decay mode K_L -> pi^+ pi^- e^+ e^-

Preprint

8 October 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/9810018

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.

Keywords

EXPERIMENTAL SEARCH
BRANCHING RATIO
RESULT AGREES
THEORETICAL
DECAY MODE
MODE K_L
STAT

All Related Versions

Version 1, 1998-10-08, ArXiv
Published version: Physics Letters B, 443 (1-4), 409.

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