Abstract
Preliminary results of a study of neutral secondary vertices associated to high energy neutrino interactions in the Fermilab 15 foot bubble chamber indicate no differences in K 0 production in charged-current and neutral-current interactions. The overall rates for energetic secondary vertices produced by interactions of neutral particles are also comparable in CC and NC events. The rate for 2-prong secondary vertices which are inconsistent with being strange particle decays is marginally higher in NC events than in CC events; additional kinematic cuts are required to determine if the possible difference in these rates is related to the effect reported by the CCFRW collaboration.
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