$\mathit CP$ VIOLATION PARAMETERS

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

INSPIRE   PDGID:
S042CKP
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 0.00 \pm0.13}$ OUR AVERAGE  Error includes scale factor of 1.4.
$-0.14$ $\pm0.13$ $\pm0.06$ 1
FUJIKAWA
2010A
 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$0.13$ $\pm0.13$ $\pm0.03$
AUBERT
2009I
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$0.24$ $\pm0.15$ $\pm0.03$
AUBERT
2008E
 BABR Repl. by AUBERT 2009I
$0.05$ $\pm0.14$ $\pm0.05$ 1
CHAO
2007
BELL Repl. by FUJIKAWA 2010A
$0.06$ $\pm0.18$ $\pm0.03$
AUBERT
2005Y
 BABR Repl. by AUBERT 2008E
$-0.16$ $\pm0.29$ $\pm0.05$ 1, 2
CHAO
2005A
 BELL Repl. by CHEN 2005B
$0.11$ $\pm0.20$ $\pm0.09$ 1
CHEN
2005B
 BELL Repl. by CHAO 2007
$-0.03$ $\pm0.36$ $\pm0.11$ 1
AUBERT
2004M
 BABR Repl. by AUBERT,B 2004M
$0.40$ ${}^{+0.27}_{-0.28}$ $\pm0.09$ 3
AUBERT,B
2004M
 BABR Repl. by AUBERT 2005Y
1  Reports $\mathit A$ which is equal to $−\mathit C$.
2  Corresponds to a 90$\%$ CL interval of $-0.33$ $<$ $\mathit A_{CP}$ $<$ 0.64.
3  Based on a total signal yield of $122$ $\pm16$ events.
Conservation Laws:
$\mathit CP$ INVARIANCE
References:
FUJIKAWA 2010A
PR D81 011101 Measurement of $\mathit CP$ Asymmetries in ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit K}^{0}}{{\mathit \pi}^{0}}$ Decays
AUBERT 2009I
PR D79 052003 Measurement of Time Dependent $\mathit CP$ Asymmetry Parameters in ${{\mathit B}^{0}}$ Meson Decays to ${{\mathit \omega}}{{\mathit K}_S^0}$ , ${{\mathit \eta}^{\,'}}{{\mathit K}^{0}}$ , and ${{\mathit \pi}^{0}}{{\mathit K}_S^0}$
AUBERT 2008E
PR D77 012003 Measurement of the $\mathit CP$-Violating Asymmetries in ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}$ and of the Branching Fraction ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit K}^{0}}{{\mathit \pi}^{0}}$
CHAO 2007
PR D76 091103 Measurements of Time-Dependent $\mathit CP$ Violation in ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit K}_S^0}$ , ${{\mathit f}_{{0}}{(980)}}{{\mathit K}_S^0}$ , ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}$ and ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit K}_S^0}$ Decays
AUBERT 2005Y
PR D71 111102 Measurement of the Branching Fraction and the $\mathit CP$-Violating Asymmetry for the Decay ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}$
CHAO 2005A
PR D71 031502 Improved Measurements of the Partial Rate Asymmetry in ${{\mathit B}}$ $\rightarrow$ ${{\mathit h}}{{\mathit h}}$ Decays
CHEN 2005B
PR D72 012004 Time-Dependent $\mathit CP$-Violating Asymmetries in ${\mathit {\mathit b}}$ $\rightarrow$ ${\mathit {\mathit s}}$ ${\mathit {\overline{\mathit q}}}$ ${\mathit {\mathit q}}$ Transitions
AUBERT 2004M
PRL 92 201802 Measurements of Branching Fractions and $\mathit CP$ Violating Asymmetries in ${{\mathit B}}$ Meson Decays to Charmless Two Body States Containing a ${{\mathit K}^{0}}$
AUBERT,B 2004M
PRL 93 131805 Measurements of $\mathit CP$ Violating Asymmetries in ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}$ Decays