$\mathit CP$ VIOLATION

$\mathit A_{CP}$ is defined as
${B( {{\mathit B}^{-}} \rightarrow {{\overline{\mathit f}}})–B( {{\mathit B}^{+}} \rightarrow {{\mathit f}})\over B( {{\mathit B}^{-}} \rightarrow {{\overline{\mathit f}}})+B( {{\mathit B}^{+}} \rightarrow {{\mathit f}})}$,
the $\mathit CP$-violation charge asymmetry of exclusive ${{\mathit B}^{-}}$ and ${{\mathit B}^{+}}$ decay.

$\mathit A_{CP}$( ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit K}^{+}}$)

INSPIRE   PDGID:
S041AX7
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 0.017 \pm0.017}$ OUR AVERAGE  Error includes scale factor of 1.8.  See the ideogram below.
$0.004$ $\pm0.014$ $\pm0.007$
AAIJ
2023V
 LHCB ${{\mathit p}}{{\mathit p}}$ at 13 TeV
$0.017$ $\pm0.011$ $\pm0.006$ 1
AAIJ
2015O
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
$0.128$ $\pm0.044$ $\pm0.013$
LEES
2012O
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$-0.07$ $\pm0.17$ ${}^{+0.03}_{-0.02}$
ACOSTA
2005J
 CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV
$0.01$ $\pm0.12$ $\pm0.05$ 2
CHEN
2003B
 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$0.022$ $\pm0.021$ $\pm0.009$
AAIJ
2014A
 LHCB Repl. by AAIJ 2015O
$0.00$ $\pm0.08$ $\pm0.02$
AUBERT
2006O
 BABR Repl. by LEES 2012O
$0.04$ $\pm0.09$ $\pm0.01$ 3
AUBERT
2004A
 BABR Repl. by AUBERT 2006O
$-0.05$ $\pm0.20$ $\pm0.03$ 4
AUBERT
2002E
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
1  Obtained using $\mathit A_{CP}$( ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit K}^{\pm}}$) = ($0.3$ $\pm0.6$) $ \times 10^{-2}$.
2  Corresponds to 90$\%$ confidence range $-0.20<\mathit A_{\mathit CP}<0.22$.
3  Corresponds to 90$\%$ confidence range $-0.10<\mathit A_{\mathit CP}<0.18$.
4  Corresponds to 90$\%$ confidence range $-0.37<\mathit A_{\mathit CP}<0.28$.

           $\mathit A_{CP}({{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit K}^{+}}$ )
Conservation Laws:
$\mathit CP$ INVARIANCE
References