CHARGE ASYMMETRY IN ${{\mathit K}_{{{\ell3}}}^{0}}$ DECAYS

Such asymmetry violates $\mathit CP$. It is related to Re($\epsilon $).

$\mathit A_{\mathit L}({{\mathit \mu}}$) = $\lbrack{}\Gamma\mathrm {({{\mathit \pi}^{-}} {{\mathit \mu}^{+}} {{\mathit \nu}_{{{\mu}}}})}$ $−$ $\Gamma\mathrm {({{\mathit \pi}^{+}} {{\mathit \mu}^{-}} {{\overline{\mathit \nu}}_{{{\mu}}}})}$]/SUM

INSPIRE   JSON PDGID:
S013A1
Only the combined value below is put into the Meson Summary Table.
VALUE (%) EVTS DOCUMENT ID TECN
$\bf{ 0.304 \pm0.025 }$ OUR AVERAGE
$0.313$ $\pm0.029$ 15M
GEWENIGER
1974
 
ASPK
$0.278$ $\pm0.051$ 7.7M
PICCIONI
1972
 
ASPK
• • We do not use the following data for averages, fits, limits, etc. • •
$0.60$ $\pm0.14$ 4.1M
MCCARTHY
1973
 
CNTR
$0.57$ $\pm0.17$ 1M 1
PACIOTTI
1969
 
OSPK
$0.403$ $\pm0.134$ 1M 1
DORFAN
1967
 
OSPK
1  PACIOTTI 1969 is a reanalysis of DORFAN 1967 and is corrected for ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ range difference in MCCARTHY 1972.
Conservation Laws:
$\mathit CP$ VIOLATION OBSERVED
References