We report on a search for the decay KL→π0νν̄, carried out as a part of E799-II, a rare KL decay experiment at Fermilab. Within the standard model, the KL→π0νν̄ decay is dominated by direct CP violating processes, and thus an observation of the decay implies confirmation of direct CP violation. No events were observed, and we set an upper limit for the branching ratio of KL→π0νν̄ to be <5.9×10-7 at the 90% confidence level.
|Original language||English (US)|
|Number of pages||5|
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|State||Published - Apr 1 2000|
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)