Search for anti-neutrino induced muon+ e- events

Abstract

The authors have examined 1200 interactions with visible energies greater than 7.5 GeV produced by an anti-neutrino beam in the Fermilab 15-foot bubble chamber filled with a light neon hydrogen mixture. They have found one event with a {mu}{sup +}e{sup -} and hadrons in the final state, but with no evidence of strange particle production. This event may be an example of dilepton production by an anti-neutrino interaction, but other interpretations are possible. With 90% confidence, they conclude that the rate for the process {bar {nu}} + N {yields} e{sup -} + {mu}{sup +} + hadrons is {le} .8% of charged current anti-neutrino interactions with visible energy > 7.5 GeV