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

Publisher Website

17 August 1970

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

Vol. 25 (7) , 473-474
https://doi.org/10.1103/physrevlett.25.473

Abstract

The branching ratio for the process

K^{+} \to π^{+} + γ + γ

is shown by a counter-spark-chamber experiment to be less than 4 ×

10^{- 5}

of all decay modes, assuming a phase-space pion energy spectrum. A limit of 4 ×

10^{- 6}

is established for the process

K^{+} \to π^{+} + γ

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

Keywords

This publication has 11 references indexed in Scilit:

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Physical Review Letters, 1970
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