Abstract
We report on a search for the rare decay KL → π0νν + ̄ in the KTeV experiment at Fermilab. We searched for two-photon events whose kinematics were consistent with an isolated π0 coming from the decay KL → π0νν + ̄. One candi date event was observed, which was consistent with the expected level of background. An upper limit on the branching ratio was determined to be B(KL → π0νν + ̄) < 1.6 × 10-6 at the 90% confidence level.
Original language | English (US) |
---|---|
Pages (from-to) | 240-245 |
Number of pages | 6 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 447 |
Issue number | 3-4 |
DOIs | |
State | Published - 1999 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics