$\mathit CP$ VIOLATION PARAMETERS

$\mathit S$ ( ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ )

INSPIRE   PDGID:
S042SK2
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 0.89 {}^{+0.27}_{-0.30}}$ OUR AVERAGE
$0.92$ ${}^{+0.27}_{-0.31}$ $\pm0.11$
YUSA
2019
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$0.72$ $\pm0.71$ $\pm0.08$
AUBERT
2007AQ
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
Conservation Laws:
$\mathit CP$ INVARIANCE
References:
YUSA 2019
PR D99 011102 Measurement of time-dependent $CP$ violation in $B^0 \to K^0_S \pi^0 \pi^0$ decays
AUBERT 2007AQ
PR D76 071101 Measurement of $\mathit CP$ Asymmetry in ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ Decays