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PARAMETERS for ${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$ DECAY

$\vert \epsilon {}^{'}_{+−{{\mathit \gamma}}}\vert /\epsilon $ for ${{\mathit K}_L^0}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$

INSPIRE   PDGID:

S013EPG

VALUE CL% EVTS DOCUMENT ID TECN $\bf{<0.3}$ 90 3671 1 RAMBERG 1993 B E731 1  RAMBERG 1993B limit on $\vert \epsilon {}^{'}_{+−{{\mathit \gamma}}}\vert /\epsilon $ assumes than any difference between $\eta _{+−}$ and $\eta _{+−{{\mathit \gamma}}}$ is due to direct $\mathit CP$ violation.

Conservation Laws:

$\mathit CP$ INVARIANCE

References:

RAMBERG 1993B PRL 70 2529 First Measurement of the $\mathit CP$ Violation Parameter $\eta _{+−{{\mathit \gamma}}}$ in Neutral Kaon Decays

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