Decay of B mesons into charged and neutral kaons

Data on inclusive kaon production in e/sup +/e/sup -/ annihilations at energies in the vicinity of the UPSILON(4S) resonance are presented. A clear excess of kaons is observed on the UPSILON(4S) compared to the continuum. Under the assumption that the UPSILON(4S) decays into BB-bar, a total of 3.38 +- 0.34 +- 0.68 kaons per UPSILON(4S) decay is found. In the context of the standard B-decay model this leads to a value for (b..-->..c)/(b..-->..all) of 1.09 +- 0.33 +- 0.13.