Comparison of the $K^{+}$ and $K^{-}$ Decay Rates into the $τ$ and $K_{μ 2}$ modes

Publisher Website

26 June 1967

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

Vol. 18 (26) , 1214-1218
https://doi.org/10.1103/physrevlett.18.1214

Abstract

The

K^{+}

and

K^{-}

decay rates into the

τ

and

K_{μ 2}

modes have been compared in an experiment at the Brookhaven alternating-gradient synchrotron. The results are

\frac{Γ (K^{+} \to π^{+} + π^{+} + π^{-})}{Γ (K^{-} \to π^{-} + π^{-} + π^{+})} - 1 = - 0.0004 \pm 0.0021

and

\frac{Γ (K^{+} \to μ^{+} + ν_{μ})}{Γ (K^{-} \to μ^{-} + {\bar{ν}}_{μ})} - 1 = - 0.0054 \pm 0.0041

. The absolute decay rate for

τ

was found to be (4.496±0.030) ×

10^{6}

\sec^{- 1}

.

Keywords

This publication has 12 references indexed in Scilit:

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