Search for the decay K L → π 0 νν + ?
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Journal Volume
447
Journal Issue
3-4
Pages
240-245
Date Issued
1999
Author(s)
Adams, J. et al. (KTeV Collaboration)
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. © 1999 Published by Elsevier Science B.V. All rights reserved.
Type
journal article