LEPTONIC DECAY OF THE $sup -$ HYPERON

The decay of a /sup -/ hyperon, produced in the reaction K/sup -/ + p ons in pyrolyti /sup -/ + ceramic materia /sup +/ + K/sup 0/, by the mode /sup -/ ontrol migra- e proc--/ + is reported; and a most probable value of 0.6% is determined for the branching ratio of this decay. (D.C.W.)