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[en] We report recent results from an analysis of 100,000 pictures from the Fermilab 15 ft. bubble chamber filled with heavy neon and exposed to the double horn focused, wideband ν/sub μ/ beam. We have found 164 dilepton (μ^-e⁺) events with 33 vees, in good agreement with the GIM model of charm production. We have also observed the production of the charmed D⁰ meson, followed by the decay D⁰ → K⁰π⁺π^-, at a rate of (0.7 +- 0.2)% of all charged current events. We have carried out searches for charm changing neutral current processes and for heavy lepton production, both with negative results; the upper limits obtained in these searches are given

[en] Recent results are reported from an analysis of 100,000 pictures of the Fermilab 15 ft. bubble chamber filled with heavy neon and exposed to the double horn focused, wideband ν/sub μ/ beam. There were 164 dilepton (μ^-e⁺) events with 33 vees, in good agreement with the GIM model of charm production. Also the production of the charmed D⁰ meson, followed by the decay D⁰ → K⁰π⁺π^-, at a rate of (0.7 +- 0.2)% of all charged current events were observed. Searches were carried out for charm changing neutral current processes and for heavy lepton production, both with negative results; the upper limits obtained in these searches are given

[en] In a broad-band neutrino exposure of the Fermilab 15-ft. bubble chamber, the production of the Σ/sub c/⁺⁺(2426) charmed baryon followed by its decay to Λ/sub /c⁺(2260) and π⁺ was observed. The mass of the Λ/sub c/⁺ was found to be (2257 +- 10) MeV and the m(Σ/sub c/⁺⁺) - m(Λ/sub c/⁺) mass difference to be (168 +- 3) MeV. Previously unseen two body decay modes of the Λ/sub c/⁺(2260) are observed. 15 references

[en] There were 11 events of the reaction ν/sub μ/ + e^-→ ν/sub μ/ + e^- observed in a sample of 106,000 charged current neutrino interactions in a heavy neon--hydrogen mixture in the 15 ft. bubble chamber at Fermilab. A cross section was obtained for this process of (1.8 +- 0.8) x 10^-42 E/sub ν/ cm^-2, where E/sub ν/ is the incident neutrino energy in units of GeV. This result is in good agreement with the prediction of the Weinberg--Salam model with sin²theta/sub w/ = 0.2. 10 references

[en] There were 5 events of the reaction ν/sub μ/ + e^- → ν/sub μ/ + e^- in a sample of approximately 50,000 charged current neutrino interactions in a heavy neon-hydrogen mixture in the 15 foot bubble chamber at Fermilab. This result is in rough agreement with the prediction of the Weinberg-Salam model with the currently favored value of the mixing angle, sin² theta approximately 1/4

[en] In a broad-band neutrino exposure of the Fermilab 15-ft bubble chamber, we observe the production of the Σsub(c)sup(++) (2426) charmed baryon followed by its decay to Λsub(c)sup(+) (2260) and π⁺. We find the masses for these states to be m(Λsub(c)sup(+))=(2257+-10) MeV and the m(Σsub(c)sup(++))-m(Λsub(c)sup(+)) mass difference to be (168+-3)MeV. Previously unseen two body decay modes of the Λsu(c)sup(+) (2260) are observed

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No abstract available