$\mathit CP$ 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.

$\mathit A_{CP}({{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit D}}_{CP(+1)}$ ${{\mathit K}^{+}}$)

INSPIRE   JSON  (beta) PDGID:
S041AY3
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 0.132 \pm0.015}$ OUR AVERAGE  Error includes scale factor of 1.8.
$0.125$ $\pm0.058$ $\pm0.014$
ADACHI
2024I
 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$0.136$ $\pm0.009$ $\pm0.001$ 1
AAIJ
2021Q
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
$0.097$ $\pm0.018$ $\pm0.009$
AAIJ
2016L
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
$0.39$ $\pm0.17$ $\pm0.04$
AALTONEN
2010A
 CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV
$0.25$ $\pm0.06$ $\pm0.02$ 2
DEL-AMO-SANCH..
2010G
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$0.126$ $\pm0.014$ $\pm0.002$ 3, 4
AAIJ
2018A
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
$0.115$ $\pm0.025$ $\pm0.007$ 5, 4
AAIJ
2018A
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
$0.145$ $\pm0.032$ $\pm0.010$ 6
AAIJ
2012M
 LHCB Repl. by AAIJ 2016L
$0.27$ $\pm0.09$ $\pm0.04$
AUBERT
2008AA
 BABR Repl. by DEL-AMO-SANCHEZ 2010G
$0.06$ $\pm0.14$ $\pm0.05$
ABE
2006
BELL Repl. by ADACHI 2024I
$0.35$ $\pm0.13$ $\pm0.04$
AUBERT
2006J
 BABR Repl. by AUBERT 2008AA
$0.07$ $\pm0.17$ $\pm0.06$
AUBERT
2004N
 BABR Repl. by AUBERT 2006J
$0.29$ $\pm0.26$ $\pm0.05$ 7
ABE
2003D
 BELL Repl. by SWAIN 2003
$0.06$ $\pm0.19$ $\pm0.04$ 8
SWAIN
2003
BELL Repl. by ABE 2006
1  Uses ${{\mathit D}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ and ${{\mathit D}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ decay modes.
2  Reports the first evidence for direct $\mathit CP$ violation in ${{\mathit B}}$ $\rightarrow$ ${{\mathit D}}{{\mathit K}}$ decays with 3.6 standard deviations.
3  Uses ${{\mathit D}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ decay mode.
4  Superseded by AAIJ 2021Q.
5  Uses ${{\mathit D}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ decay mode.
6  AAIJ 2012M reports an evidence of direct $\mathit CP$ violation in ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit D}}{{\mathit K}^{\pm}}$ decays with a total significance of 5.8 $\sigma $.
7  Corresponds to 90$\%$ confidence range $-0.14<\mathit A_{\mathit CP}<0.73$.
8  Corresponds to 90$\%$ confidence range $-0.26<\mathit A_{\mathit CP}<0.38$.
Conservation Laws:
$\mathit CP$ VIOLATION OBSERVED
References