$\mathit CP$ VIOLATION PARAMETERS

$\mathit S_{{{\mathit K}^{+}} {{\mathit K}^{-}} {{\mathit K}_S^0} }$ (${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit K}_S^0}$ nonresonant)

INSPIRE   JSON  (beta) PDGID:
S042SX2
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ -0.66 \pm0.11}$ OUR AVERAGE
$-0.65$ $\pm0.12$ $\pm0.03$ 1, 2
LEES
2012O
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$-0.68$ $\pm0.15$ ${}^{+0.21}_{-0.13}$ 3
CHAO
2007
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$-0.764$ $\pm0.111$ ${}^{+0.071}_{-0.040}$ 3, 4
AUBERT
2007AX
 BABR Repl. by LEES 2012O
$-0.42$ $\pm0.17$ $\pm0.03$ 3, 5
AUBERT
2005T
 BABR Repl. by AUBERT 2007AX
$-0.49$ $\pm0.18$ $\pm0.04$
CHEN
2005B
 BELL Repl. by CHAO 2007
$-0.56$ $\pm0.25$ $\pm0.04$ 3, 6
AUBERT,B
2004V
 BABR Repl. by AUBERT 2005T
$-0.49$ $\pm0.43$ $\pm0.11$
ABE
2003C
 BELL Repl. by ABE 2003H
$-0.51$ $\pm0.26$ $\pm0.05$ 3, 7
ABE
2003H
 BELL Repl. by CHEN 2005B
1  Uses Dalitz plot analysis of the ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ decay.
2  This measurement is performed on all the isobar components, excluding ${{\mathit \phi}}{{\mathit K}_S^0}$ and ${{\mathit f}_{{{0}}}{(980)}}{{\mathit K}_S^0}$ . Note that the nonresonant component is not a $\mathit CP$ eigenstate.
3  Excludes events from ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit K}_S^0}$ decay. The results are derived from a combined sample of ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit K}_S^0}$ and ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit K}_L^0}$ decays.
4  Reports $\beta _{eff}$. We quote $\mathit S$ obtained from epaps: E-PRLTAO-99-076741.
5  The measured $\mathit CP$-even final states fraction is $0.89$ $\pm0.08$ $\pm0.06$.
6  The measured $\mathit CP$-even final states fraction is $0.98$ $\pm0.15$ $\pm0.04$.
7  The measured $\mathit CP$-even final states fraction is $1.03$ $\pm0.15$ $\pm0.05$.
Conservation Laws:
$\mathit CP$ VIOLATION OBSERVED
References