Upper limit on the branching ratio for the decay. pi. sup 0 r arrow. nu. nu

Journal Article · Mon Apr 29 00:00:00 EDT 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.2189· OSTI ID:5538945

Atiya, M S; Chiang, I; Frank, J S; Haggerty, J S; Ito, M M; Kycia, T F; Li, K K; Littenberg, L S; Stevens, A; Strand, R C ^[1]; Louis, W C ^[2]; Akerib, D S; Marlow, D R; Meyers, P D; Selen, M A; Shoemaker, F C; Smith, A J.S. ^[3]; Azuelos, G; Blackmore, E W; Bryman, D A ; Felawka, L; Kitching, P; Kuno, Y; Macdonald, J A; Numao, T; Padley, P; Poutissou, J; Poutissou, R; Roy, J ^[4]

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1. Brookhaven National Laboratory, Upton, New York 11973 (IA)
2. Medium Energy Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (USA)
3. Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544 (USA)
4. TRIUMF, Vancouver, British Columbia, (Canada) V6T 2A3

An experimental upper limit on the branching ratio for the decay {pi}{sup 0}{r arrow}{nu}{bar {nu}} is set at 8.3{times}10{sup {minus}7} (90% C.L.). This decay is forbidden if neutrinos are purely left handed. The limit also applies to any decays of the {pi}{sup 0} to weakly interacting neutrals.

• DOE Contract Number: AC02-76CH00016; W-7405-ENG-36; AC02-76ER03072
• OSTI ID: 5538945
• Journal Information: Physical Review Letters; (USA), Vol. 66:17; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

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