Limits on neutrino oscillations in the appearance channels vμ → ve and vμ → ve

Autor: Guido Drexlin, O. Stumm, J. Rapp, K. Eitel, T. Jannakos, W. Grandegger, M. Kleifges, S. Wölfle, B. Seligmann, B. Armbruster, I. Blair, R. Maschuw, W. Kretschmer, V. Eberhard, N. E. Booth, B. Bodmann, E. Finckh, F. Schilling, J. Höβ, B. Zeitnitz, P. Plischke, H. Gemmeke, Joachim Wolf, M. Ferstl, A. C. Dodd, J. Kleinfeller, J. A. Edgington
Rok vydání: 1995
Předmět:
Zdroj: Nuclear Physics B - Proceedings Supplements. 38:235-239
ISSN: 0920-5632
DOI: 10.1016/0920-5632(94)00752-h
Popis: The KARMEN experiment at the pulsed spallation neutron facility ISIS uses the beam stop neutrinos v μ , v e and v μ from π + and μ + decay at rest to search for neutrino oscillations in the appearance modes v μ → v e and v μ → v e . A high resolution 56 ton liquid scintillation calorimeter located at a mean distance of 17.5 m from the proton beam stop allows identification of v e and v e with spectroscopic quality . We report the status of our search for neutrino oscillations after four years of running. No positive evidence for neutrino oscillations has been observed in both appearance channels. The 90 % CL limits of this experiment exclude mixing angles sin 2 2 Θ ≥ 0.0062 in the v μ → v e channel and sin 2 2 Θ ≥ 0.048 in the v μ → v e channel for the region Δm 2 > 1 eV 2
Databáze: OpenAIRE
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