${{\mathit A}_{{ADS}}}$ ( ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit D}^{*}}$( ${{\mathit D}}{{\mathit \pi}^{0}}$) ${{\mathit \pi}^{+}}$ ) = (R${}^{-}_{{{\mathit \pi}} }$ $−$ R${}^{+}_{{{\mathit \pi}} }$) $/$ (R${}^{-}_{{{\mathit \pi}} }$ + R${}^{+}_{{{\mathit \pi}} }$), where R${}^{-}_{{{\mathit \pi}} }$ = $\Gamma $( ${{\mathit B}^{-}}$ $\rightarrow$ ( [ ${{\mathit K}^{+}}{{\mathit \pi}^{-}}$ ]$_{D}$ ${{\mathit \pi}^{0}}$ )$_{{{\mathit D}^{*}} }$ ${{\mathit \pi}^{-}}$ ) $/$ $\Gamma $( ${{\mathit B}^{-}}$ $\rightarrow$ ( [ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ ]$_{D}$ ${{\mathit \pi}^{0}}$ )$_{{{\mathit D}^{*}} }$ ${{\mathit \pi}^{-}}$ ) and R${}^{+}_{{{\mathit \pi}} }$ = $\Gamma $( ${{\mathit B}^{+}}$ $\rightarrow$ ( [ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ ]$_{D}$ ${{\mathit \pi}^{0}}$ )$_{{{\mathit D}^{*}} }$ ${{\mathit \pi}^{+}}$ ) $/$ $\Gamma $( ${{\mathit B}^{+}}$ $\rightarrow$ ( [ ${{\mathit K}^{+}}{{\mathit \pi}^{-}}$ ]$_{D}$ ${{\mathit \pi}^{0}}$ )$_{{{\mathit D}^{*}} }$ ${{\mathit \pi}^{+}}$ )

VALUE DOCUMENT ID TECN  COMMENT $-0.140$ $\pm0.059$ 1 AAIJ 2021 Q LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV 1  The statistical and systematic uncertainties have been combined according to the correlations between the R${}^{-}_{{{\mathit \pi}} }$ and R${}^{+}_{{{\mathit \pi}} }$ observables.

Conservation Laws:

$\mathit CP$ 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