$\mathit CP$ VIOLATION

$\mathit A_{CP}$ is defined as
${B( {{\overline{\mathit B}}} \rightarrow {{\overline{\mathit f}}})–B( {{\mathit B}} \rightarrow {{\mathit f}})\over B( {{\overline{\mathit B}}} \rightarrow {{\overline{\mathit f}}})+B( {{\mathit B}} \rightarrow {{\mathit f}})}$,
the $\mathit CP$-violation charge asymmetry of inclusive ${{\mathit B}^{\pm}}$ and ${{\mathit B}^{0}}$ decay.

$\mathit A_{CP}$( ${{\mathit B}}$ $\rightarrow$ ${{\mathit K}^{*}{(892)}}{{\mathit \gamma}}$)

INSPIRE   PDGID:
S049CP1
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ -0.003 \pm0.011}$ OUR AVERAGE
$-0.004$ $\pm0.014$ $\pm0.003$ 1
HORIGUCHI
2017
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$-0.003$ $\pm0.017$ $\pm0.007$ 2
AUBERT
2009AO
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$0.08$ $\pm0.13$ $\pm0.03$ 3
COAN
2000
CLE2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$-0.013$ $\pm0.036$ $\pm0.010$ 4
AUBERT,BE
2004A
 BABR Repl. by AUBERT 2009AO
$-0.015$ $\pm0.044$ $\pm0.012$ 3
NAKAO
2004
BELL Repl. by HORIGUCHI 2017
$-0.044$ $\pm0.076$ $\pm0.012$ 5
AUBERT
2002C
 BABR Repl. by AUBERT,BE 2004A
1  Uses B( ${{\mathit \Upsilon}{(4S)}}$ $\rightarrow$ ${{\mathit B}^{+}}{{\mathit B}^{-}}$) = ($51.4$ $\pm0.6)\%$ and B( ${{\mathit \Upsilon}{(4S)}}$ $\rightarrow$ ${{\mathit B}^{0}}{{\overline{\mathit B}}^{0}}$) = ($48.6$ $\pm0.6)\%$.
2  Corresponds to a 90$\%$ CL interval $-0.033<$ $\mathit A_{CP}<$ 0.028.
3  Assumes equal production of ${{\mathit B}^{+}}$ and ${{\mathit B}^{0}}$ at the ${{\mathit \Upsilon}{(4S)}}$.
4  Corresponds to a 90$\%$ CL allowed region, $-0.074$ $<$ $\mathit A_{CP}$ $<$ 0.049.
5  A 90$\%$ CL range is $-0.170<\mathit A_{\mathit CP}<0.082$.
Conservation Laws:
$\mathit CP$ INVARIANCE
References