Constraints on massive neutrinos in pi -->e nu decay

A search has been carried out for the production of neutrinos in the mass range 60 to 130 MeV coupling to the electron in the decay ..pi../sup +/..-->..e/sup +/..nu... The dominant background from the ..pi..-..mu..-e decay chain has been suppressed by use of a new technique leading to more than a...

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Veröffentlicht in:Phys. Rev. Lett.; (United States) 1986-05, Vol.56 (21), p.2241-2243
Hauptverfasser: Azuelos, G, Britton, DI, Bryman, DA, Clifford, ET, Kitching, P, Macdonald, JA, Numao, T, Olaniyi, B, Olin, A, Poutissou, J, Schlatter, P, Dixit, MS
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Sprache:eng
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Zusammenfassung:A search has been carried out for the production of neutrinos in the mass range 60 to 130 MeV coupling to the electron in the decay ..pi../sup +/..-->..e/sup +/..nu... The dominant background from the ..pi..-..mu..-e decay chain has been suppressed by use of a new technique leading to more than an order of magnitude greater sensitivity than achieved previously.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.56.2241