$\mathit CP$ VIOLATION TESTS IN ${{\mathit K}^{\pm}}$ DECAYS

$\Delta $ = ($\Gamma\mathrm {({{\mathit K}^{+}})}$ $−$ $\Gamma\mathrm {({{\mathit K}^{-}})}$) $/$ ($\Gamma\mathrm {({{\mathit K}^{+}})}$ + $\Gamma\mathrm {({{\mathit K}^{-}})}$)

$\Delta $( ${{\mathit K}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ ) RATE DIFFERENCE/SUM

INSPIRE   PDGID:
S010D2
VALUE (%) EVTS DOCUMENT ID TECN CHG
$0.04$ $\pm0.06$ 1
FORD
1970
ASPK
• • We do not use the following data for averages, fits, limits, etc. • •
$-0.01$ $\pm0.08$ 2
SMITH
1973
ASPK $\pm{}$
$0.05$ $\pm0.07$ 3.2M 1
FORD
1970
ASPK
$-0.25$ $\pm0.45$
FLETCHER
1967
OSPK
$-0.02$ $\pm0.11$ 1
FORD
1967
CNTR
1  First FORD 1970 value is second FORD 1970 combined with FORD 1967 .
2  SMITH 1973 value of ${{\mathit K}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ rate difference is derived from SMITH 1973 value of ${{\mathit K}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}$2 ${{\mathit \pi}^{0}}$ rate difference.
Conservation Laws:
$\mathit CP$ INVARIANCE
References:
SMITH 1973
NP B60 411 A Search for $\mathit CP$ Violating Effects in the Decays ${{\mathit K}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
FORD 1970
PRL 25 1370 Search for Violation of $\mathit CP$ Invariance in ${{\mathit \tau}^{\pm}}$ Decay
FLETCHER 1967
PRL 19 98 Measurement of the Relative Partial Decay Rates for ${{\mathit K}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
FORD 1967
PRL 18 1214 Comparison of the ${{\mathit K}^{+}}$ and ${{\mathit K}^{-}}$ Decay Rates into the ${{\mathit \tau}}$ and ${{\mathit K}_{{\mu2}}}$ Modes