Upper limit on the branching ratio for the decay π0→νν¯
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ID: 273407
1991
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Abstract
An experimental upper limit on the branching ratio for the decay ${\mathrm{\ensuremath{\pi}}}^{0}$\ensuremath{\rightarrow}\ensuremath{\nu}\ensuremath{\nu}\ifmmode\bar\else\textasciimacron\fi{} is set at 8.3\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}7}$ (90% C.L.). This decay is forbidden if neutrinos are purely left handed. The limit also applies to any decays of the ${\mathrm{\ensuremath{\pi}}}^{0}$ to weakly interacting neutrals.
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1991physicalupper
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| Authors | |
| Journal | physical review letters |
| Year | 1991 |
| DOI |
doi:10.1103/PhysRevLett.66.2189
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