Measurement of B(K -> pnn)
Abstract
The experimental measurement of positive kaons decaying to a positive pion and a neutrino, anti-neutrino pair (pnn) is reviewed. Recent results from experiment E787 at BNL are presented: with data from 1995--97 the branching ratio has been measured to be B(pnn) = (1.5+3.4-1.2) ×10-10. The future prospects for additional data in this mode are examined.
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