Abstract
The Fermilab KTeV experiment has searched for lepton-flavor-violating decays of the KL meson in three decay modes. We observe no events in the signal region for any of the modes studied, and we set the following upper limits for their branching ratios at the 90% C.L.: BR(KL ϱeâ) <7.6Ã-10-11; BR(KL Ï0ϱeâ)<1.7Ã- 10-10; BR(Ï0 Π±eâ)<3.6Ã-10-10. This result represents a factor of 82 improvement in the branching ratio limit for KL ϱeâ and is the first reported limit for KL Ï0ϱeâ.
Original language | English (US) |
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Article number | 131803 |
Journal | Physical review letters |
Volume | 100 |
Issue number | 13 |
DOIs | |
State | Published - Apr 4 2008 |
ASJC Scopus subject areas
- General Physics and Astronomy