${{\mathit D}^{\pm}}$ $\mathit CP$-VIOLATING DECAY-RATE ASYMMETRIES

This is the difference between ${{\mathit D}^{+}}$ and ${{\mathit D}^{-}}$ partial widths for the decay to state ${{\mathit f}}$, divided by the sum of the widths:$
$ $\mathit A_{CP}({{\mathit f}}$)= [$\Gamma $( ${{\mathit D}^{+}}$ $\rightarrow$ ${{\mathit f}}$) $−$ $\Gamma $( ${{\mathit D}^{-}}$ $\rightarrow$ ${{\overline{\mathit f}}})]/[\Gamma $( ${{\mathit D}^{+}}$ $\rightarrow$ ${{\mathit f}}$) + $\Gamma $( ${{\mathit D}^{-}}$ $\rightarrow$ ${{\overline{\mathit f}}}$)].

$\mathit A_{\mathit CP}({{\mathit \pi}^{\pm}}{{\mathit \pi}^{0}}$) in ${{\mathit D}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \pi}^{0}}$

INSPIRE   PDGID:
S031A11
VALUE (%) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 0.4 \pm1.3 }$ OUR AVERAGE  Error includes scale factor of 1.7.  See the ideogram below.
$-1.3$ $\pm0.9$ $\pm0.6$ 28.7k
AAIJ
2021U
LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
$2.31$ $\pm1.24$ $\pm0.23$ 108k
BABU
2018
BELL At/near ${{\mathit \Upsilon}{(4S)}}$, ${{\mathit \Upsilon}{(5S)}}$
$2.9$ $\pm2.9$ $\pm0.3$ 2.6k
MENDEZ
2010
CLEO ${{\mathit e}^{+}}{{\mathit e}^{-}}$ at 3774 MeV

           $\mathit A_{\mathit CP}({{\mathit \pi}^{\pm}}{{\mathit \pi}^{0}}$ ) in ${{\mathit D}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \pi}^{0}}$ (%)
Conservation Laws:
$\mathit CP$ INVARIANCE
References