Abstract
Data collected in Fermilab experiment E731 was used to perform the first search for the decay KL→π0νν. This decay is dominated by short distance effects and is almost entirely direct CP violating within the standard model. Cuts were developed to reject the background processes Λ→nπ0 and KL→π+e-γν. No candidate events were seen. We find BR (KL→π0νν)<2.2 × 10-4 at the 90% confidence level.
Original language | English (US) |
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Pages (from-to) | 169-173 |
Number of pages | 5 |
Journal | Physics Letters B |
Volume | 295 |
Issue number | 1-2 |
DOIs | |
State | Published - Nov 26 1992 |
Externally published | Yes |
ASJC Scopus subject areas
- Nuclear and High Energy Physics