Göttingen 1997 – scientific programme
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HK: Hadronen und Kerne
HK 7: Schwache Wechselwirkungen, fundamentale Symmetrien I
HK 7.4: Talk
Monday, March 24, 1997, 15:30–15:45, HS H
Search for a heavy neutrino by measuring muon capture by 3He — •W. Schott1, S. Müller1, H. Daniel1, J. Deutsch2, P. Ackerbauer3, D.V. Balin4, V.N. Baturin4, G.A. Beer5, W.H. Breunlich3, T. Case6, K.M. Crowe6, J. Egger7, T. von Egidy1, J. Govaerts2, Yu.S. Grigoriev4, F.J. Hartmann1, P. Kammel3, B. Lauss3, E.M. Maev4, V. Markushin8, J. Marton3, M. Mühlbauer1, C. Petitjean7, T. Petitjean7, G.E. Petrov4, R. Prieels2, W. Prymas3, G.C. Semenchuck4, Yu.V. Smirenin4, B. van den Brandt7, A.A. Vorobyov4, N.I. Voropaev4, and P. Wojciechowski1 — 1Technische Universität München, Garching, Germany — 2Université Catholique de Louvain, Louvain-la-Neuve, Belgium — 3Austrian Academy of Sciences, Vienna, Austria — 4St. Petersburg Nuclear Physics Institute, Gatchina, Russia — 5University of Victoria, Victoria, Canada — 6University of California Berkeley and Lawrence Berkeley Laboratory, Berkeley, USA — 7Paul Scherrer Institut, Villigen, Switzerland — 8Russian National Center I.V. Kurchatov Institute, Moscow, Russia
The residuum of the triton energy spectrum dN/dTt of the muon capture reaction µ 3He → t + ν µ was processed through a filter. The filtered spectrum was analyzed at Tt = 1.70 MeV corresponding to Mν = 33.9 MeV/c2 searching for a massive weak interacting particle[1] which was reported to have been observed with the KARMEN detector.
[1] B. Armbruster and G. Drexlin, Phys. Lett. B348(1995)19 Supported by the BMFT