Dilepton production by neutrinos in neon

In an exposure of the Fermilab 15-ft bubble chamber filled with a heavy neon-hydrogen mixture to a broadband neutrino beam, we have observed 81 dilepton events of the type ν/sub μ/ + Ne → μ- + e+ + .... This corresponds to (0.5 +- 0.15) % of the total charged-current neutrino interactions. A total of fifteen neutral strange-particle decays (K/sub s/0 → π+π-, Λ0 → pπ-) were found in these dilepton events. When corrected for detection efficiencies and unobservable strange particles, this is consistent with production of approximately one strange particle per event