Limit on the $K^{+} \to π^{+} + ν + \bar{ν}$ Decay Rate

Publisher Website

11 May 1970

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 24 (19) , 1086-1090
https://doi.org/10.1103/physrevlett.24.1086

Abstract

The branching ratio for the process

K^{+} \to π^{+} + ν + \bar{ν}

is shown by a counter spark chamber experiment to be less than 1.2×

10^{- 6}

of all decay modes, assuming a pion energy spectrum like that of

K^{+} \to π^{0} + e^{+} + ν

. Our apparatus was sensitive to pions in the kinetic energy range 117-127 MeV.

Keywords

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