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    Search for massive neutrinos in the decay pi -> e nu

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    Downloads: 150
    Date
    2011-09-06
    Author
    Aoki, M.
    Blecher, M.
    Bryman, D. A.
    Chen, S.
    Ding, M.
    Doria, L.
    Gumplinger, P.
    Hurst, C.
    Hussein, A.
    Igarashi, Y.
    Ito, N.
    Kettell, S. H.
    Kurchaninov, L.
    Littenberg, L.
    Malbrunot, C.
    Numao, T.
    Poutissou, R.
    Sher, A.
    Sullivan, T.
    Vavilov, D.
    Yamada, K.
    Yoshida, M.
    Pienu Collaboration
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    Abstract
    Evidence of massive neutrinos in the pi(+) -> e(+)nu decay spectrum was sought with the background pi(+) -> mu(+) -> e(+) decay chain highly suppressed. Upper limits (90% C. L.) on the neutrino mixing matrix element vertical bar U(ei)vertical bar(2) in the neutrino mass region 60-129 MeV/c(2) were set at the level of 10(-8).
    URI
    http://hdl.handle.net/10919/24733
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    • Research Articles, Department of Physics [434]

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