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

INSPIRE   PDGID:
S010CP
VALUE DOCUMENT ID TECN
$\bf{ 0.010 \pm0.023}$ OUR AVERAGE
$0.011$ $\pm0.023$ 1
BATLEY
2011A
 NA48
$-0.02$ $\pm0.11$ $\pm0.04$
PARK
2002
HYCP
1  This corresponds to the asymmetry upper limit of $<$ $0.029$ at 90$\%$ CL.
Conservation Laws:
$\mathit CP$ INVARIANCE
References:
BATLEY 2011A
PL B697 107 New Measurement of the ${{\mathit K}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ Decay
PARK 2002
PRL 88 111801 Observation of the Decay ${{\mathit K}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ and Measurements of the Branching Ratios for ${{\mathit K}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$