Search for KS KL in psi'' decays
M. Ablikim
Abstract
KS KL from psi'' decays is searched for using the psi'' data collected by BESII at BEPC, the upper limit of the branching fraction is determined to be B(psi''--> KS KL) < 2.1× 10-4 at 90% C. L. The measurement is compared with the prediction of the S- and D-wave mixing model of the charmonia, based on the measurements of the branching fractions of J/psi-->KS KL and psi'-->KS KL.
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