First search for K(L) ---> pi0 pi0 nu anti-nu
Journal
Physical Review
Journal Volume
D76
Pages
011101
Date Issued
2007-01
Author(s)
Abstract
The first search for the rare kaon decay KL→π0π0νν̄ has been performed by the E391a collaboration at the KEK 12-GeV proton synchrotron. An upper limit of 4.7×10-5 at the 90% confidence level was set for the branching ratio of the decay KL→π0π0νν̄ using about 10% of the data collected during the first period of data taking. First limits for the decay mode KL→π0π0P, where P is a pseudoscalar particle, were also set. © 2007 The American Physical Society.
Type
journal article