$\mathit CP$ VIOLATION PARAMETERS

$\mathit A_{CP}$ ( ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit \pi}^{-}}$)

INSPIRE   PDGID:
S042ACP
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ -0.0831 \pm0.0031}$ OUR AVERAGE
$-0.072$ $\pm0.019$ $\pm0.007$
ADACHI
2024
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$-0.0824$ $\pm0.0033$ $\pm0.0033$
AAIJ
2021O
 LHCB ${{\mathit p}}{{\mathit p}}$ at 13 TeV
$-0.084$ $\pm0.004$ $\pm0.003$
AAIJ
2018O
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
$-0.083$ $\pm0.013$ $\pm0.004$
AALTONEN
2014P
 CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV
$-0.069$ $\pm0.014$ $\pm0.007$
DUH
2013
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$-0.107$ $\pm0.016$ ${}^{+0.006}_{-0.004}$
LEES
2013D
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$-0.04$ $\pm0.16$ 1
CHEN
2000
CLE2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$-0.080$ $\pm0.007$ $\pm0.003$
AAIJ
2013AX
 LHCB Repl. by AAIJ 2018O
$-0.088$ $\pm0.011$ $\pm0.008$
AAIJ
2012V
 LHCB Repl. by AAIJ 2013AX
$-0.086$ $\pm0.023$ $\pm0.009$
AALTONEN
2011N
 CDF Repl. by AALTONEN 2014P
$-0.094$ $\pm0.018$ $\pm0.008$
LIN
2008
BELL Repl. by DUH 2013
$-0.107$ $\pm0.018$ ${}^{+0.007}_{-0.004}$
AUBERT
2007AF
 BABR Repl. by LEES 2013D
$-0.013$ $\pm0.078$ $\pm0.012$
ABULENCIA,A
2006D
 CDF Repl. by AALTONEN 2011N
$-0.088$ $\pm0.035$ $\pm0.013$ 2
CHAO
2005A
 BELL Repl. by CHAO 2004B
$-0.133$ $\pm0.030$ $\pm0.009$ 3
AUBERT,B
2004K
 BABR Repl. by AUBERT 2007AF
$-0.101$ $\pm0.025$ $\pm0.005$ 4
CHAO
2004B
 BELL Repl. by LIN 2008
$-0.07$ $\pm0.08$ $\pm0.02$ 5
AUBERT
2002D
 BABR Repl. by AUBERT 2002Q
$-0.102$ $\pm0.050$ $\pm0.016$ 6
AUBERT
2002Q
 BABR Repl. by AUBERT,B 2004K
$-0.06$ $\pm0.09$ ${}^{+0.01}_{-0.02}$ 7
CASEY
2002
BELL Repl. by CHAO 2004B
$0.044$ ${}^{+0.186}_{-0.167}$ ${}^{+0.018}_{-0.021}$ 8
ABE
2001K
 BELL Repl. by CASEY 2002
$-0.19$ $\pm0.10$ $\pm0.03$ 9
AUBERT
2001E
 BABR Repl. by AUBERT 2002Q
1  Corresponds to 90$\%$ confidence range $-0.30<\mathit A_{\mathit CP}<0.22$.
2  Corresponds to a 90$\%$ CL interval of $-0.15$ $<$ $\mathit A_{CP}$ $<$ $-0.03$.
3  Based on a total signal yield of N(${{\mathit K}^{-}}{{\mathit \pi}^{+}}$) + N(${{\mathit K}^{+}}{{\mathit \pi}^{-}}$) = $1606$ $\pm51$ events.
4  CHAO 2004B reports significance of 3.9 standard deviation for deviation of ${{\mathit A}_{{{CP}}}}$ from zero.
5  Corresponds to 90$\%$ confidence range $-0.21<\mathit A_{\mathit CP}<0.07$.
6  Corresponds to 90$\%$ confidence range $-0.188<\mathit A_{\mathit CP}<-0.016$.
7  Corresponds to 90$\%$ confidence range $-0.21<\mathit A_{\mathit CP}<+0.09$.
8  Corresponds to 90$\%$ confidence range $-0.25<\mathit A_{\mathit CP}<0.37$.
9  Corresponds to 90$\%$ confidence range $-0.35<\mathit A_{\mathit CP}<-0.03$.
Conservation Laws:
$\mathit CP$ VIOLATION OBSERVED
References