$\mathit CP$ 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.

$\mathit A_{ADS}$( ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit D}}{{\mathit K}^{+}}$ )

INSPIRE   PDGID:
S041AA1
$\mathit A_{ADS}$( ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit D}}{{\mathit K}^{+}}$ ) = ${ (R{}^{-}_{K} − R{}^{+}_{K})\over (R{}^{-}_{K} + R{}^{+}_{K}) }$ where $\mathit R{}^{-}_{K}$ = $\Gamma $( ${{\mathit B}^{-}}$ $\rightarrow$ [ ${{\mathit K}^{+}}{{\mathit \pi}^{-}}$ ]$_{D}$ ${{\mathit K}^{-}}$ ) $/$ $\Gamma $( ${{\mathit B}^{-}}$ $\rightarrow$ [ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ ]$_{D}$ ${{\mathit K}^{-}}$ ) and $\mathit R{}^{+}_{K}$ = $\Gamma $( ${{\mathit B}^{+}}$ $\rightarrow$ [ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ ]$_{D}$ ${{\mathit K}^{+}}$ ) $/$ $\Gamma $( ${{\mathit B}^{+}}$ $\rightarrow$ [ ${{\mathit K}^{+}}{{\mathit \pi}^{-}}$ ]$_{D}$ ${{\mathit K}^{+}}$ )

VALUE DOCUMENT ID TECN  COMMENT
$-0.451$ $\pm0.026$ 1
AAIJ
2021Q
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
• • We do not use the following data for averages, fits, limits, etc. • •
$-0.403$ $\pm0.056$ $\pm0.011$ 2
AAIJ
2016L
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
$-0.52$ $\pm0.15$ $\pm0.02$
AAIJ
2012M
 LHCB Repl. by AAIJ 2016L
1  The statistical and systematic uncertainties have been combined according to the correlations between the R${}^{-}_{K}$ and R${}^{+}_{K}$ observables.
2  Superseded by AAIJ 2021Q.
Conservation Laws:
$\mathit CP$ VIOLATION OBSERVED
$\mathit CP$ INVARIANCE
References:
AAIJ 2021Q
JHEP 2104 081 Measurement of CP observables in $B^\pm \to D^{(*)} K^\pm$ and $B^\pm \to D^{(*)} \pi^\pm$ decays using two-body $D$ final states
AAIJ 2016L
PL B760 117 Measurement of $\mathit CP$ Observables in ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit D}}{{\mathit K}^{\pm}}$ and ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit D}}{{\mathit \pi}^{\pm}}$ with Two- and Four-Body ${{\mathit D}}$ Decays
AAIJ 2012M
PL B712 203 Observation of $\mathit CP$ Violation in ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit D}}{{\mathit K}^{\pm}}$ Decays
Also
PL B713 351 (errat.) Erratum to AAIJ 2012M: “Observation of $\mathit CP$ Violation in ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit D}}{{\mathit K}^{\pm}}$ Decays” [Phys. Lett. B 712 (3) (2012) 203]