${{\mathit A}_{{{S}}}}$ = [ $\Gamma\mathrm {( {{\mathit K}_S^0} \rightarrow {{\mathit \pi}^{-}} {{\mathit e}^{+}} {{\mathit \nu}_{{{e}}}})} - \Gamma\mathrm {( {{\mathit K}_S^0} \rightarrow {{\mathit \pi}^{+}} {{\mathit e}^{-}} {{\overline{\mathit \nu}}_{{{e}}}})}$ ] $/$ SUM

INSPIRE   PDGID:
S012AS
Such asymmetry violates $\mathit CP$. If $\mathit CPT$ is assumed then ${{\mathit A}_{{{S}}}}$ = 2 Re($\epsilon $).
VALUE ($ 10^{-3} $) EVTS DOCUMENT ID TECN
$-3.8$ $\pm5.0$ $\pm2.6$ 83k 1
ANASTASI
2018A
KLOE
• • We do not use the following data for averages, fits, limits, etc. • •
$1.5$ $\pm9.6$ $\pm2.9$ 13k
AMBROSINO
2006E
KLOE
1  ANASTASI 2018A result is a combination of the new measurement and AMBROSINO 2006E. The new ANASTASI 2018A measurement using data collected from $2004 - 2005$, which corresponds to an integrated luminosity of 1.63 fb${}^{-1}$ is A$_{S}=(-4.9$ $\pm5.7$ $\pm2.6$) $ \times 10^{-3}$.
Conservation Laws:
$\mathit CP$ INVARIANCE
References