${{\mathit D}^{0}}$ $\mathit CP$-VIOLATING DECAY-RATE ASYMMETRIES

This is the difference between ${{\mathit D}^{0}}$ and ${{\overline{\mathit D}}^{0}}$ partial widths for the decay to state ${{\mathit f}}$, divided by the sum of the widths:$
$ $\mathit A_{CP}({{\mathit f}}$) = [$\Gamma $( ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit f}}$ ) $−$ $\Gamma $( ${{\overline{\mathit D}}^{0}}$ $\rightarrow$ ${{\overline{\mathit f}}}$ )] $/$ [$\Gamma $( ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit f}}$ ) + $\Gamma $( ${{\overline{\mathit D}}^{0}}$ $\rightarrow$ ${{\overline{\mathit f}}}$ )].

$\mathit A_{CP}$( ${{\mathit K}^{*0}}{{\overline{\mathit K}}^{*0}}$ ${\mathit S}{\mathrm -wave}$) in ${{\mathit D}^{0}}$, ${{\overline{\mathit D}}^{0}}$ $\rightarrow$ ${{\mathit K}^{*0}}{{\overline{\mathit K}}^{*0}}$ ${\mathit S}{\mathrm -wave}$

INSPIRE   PDGID:
S032A66
VALUE (%) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ -3.9 \pm2.2 }$ OUR AVERAGE
$-4.3$ $\pm2.2$ $\pm0.5$ 163k
AAIJ
2019C
 LHCB 4-body fit, ${{\mathit K}}{{\mathit K}}{{\mathit \pi}}{{\mathit \pi}}$ evts
$+9.5$ $\pm13.5$ 3k
ARTUSO
2012
CLEO 4-body fit, ${{\mathit K}}{{\mathit K}}{{\mathit \pi}}{{\mathit \pi}}$ evts
Conservation Laws:
$\mathit CP$ INVARIANCE
References:
AAIJ 2019C
JHEP 1902 126 Search for $CP$ violation through an amplitude analysis of $D^0 \to K^+ K^- \pi^+ \pi^-$ decays
ARTUSO 2012
PR D85 122002 Amplitude Analysis of ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$