Search for tau-neutrino interactions in the BEBC beam dump experiment

Search for tau-neutrino interactions in the BEBC beam dump experiment

A novel and efficient kinematic method is used to estimate the number of ντ charged current interactions with Eν > 20 GeV in the BEBC beam dump experiment. The result, -14±12 ντ events, is consistent with zero. The ratio of Ds to D meson production in 400 GeV proton interactions in copper is...

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Bibliographic Details
Main Authors: Talebzadeh, M, Guy, J, Venus, W, Aderholz, M, Barnham, K, Bostock, P, Clayton, E, Cooper-Sarkar, A, Faccini-Turluer, M, Grässler, H, Hultquist, K, Hulth, P, Kreutzmann, H, Krstic, J, Miller, D, Mobayyen, M, Myatt, G, Nellen, B, Parker, M, Schmitz, N, Sewell, S, Simopoulou, E, Vayaki, A, Vignaud, D, Wachsmuth, H
Format: Journal article
Language:English
Published: 1987
Description
Summary:A novel and efficient kinematic method is used to estimate the number of ντ charged current interactions with Eν > 20 GeV in the BEBC beam dump experiment. The result, -14±12 ντ events, is consistent with zero. The ratio of Ds to D meson production in 400 GeV proton interactions in copper is estimated to be below 0.65 at 90% c.l. The oscillation probability P(νe→ντ) averaged over the electron-(anti)neutrino spectrum is found to be below 18%. The hypothesis that νe and ντ are identical is excluded by about 6 standard deviations. A remarkable event is described: it contains a muon, a high pT photon and a high pT hadron. © 1987.

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