${{\mathit D}^{0}}$ $\mathit CP$-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 $( ${{\overline{\mathit D}}^{0}}$ $\rightarrow$ ${{\overline{\mathit f}}}$)].

$\mathit A_{CP}$( ${{\mathit \rho}{(770)}^{0}}$ $\rightarrow$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}$) in ${{\mathit D}^{0}}$, ${{\overline{\mathit D}}^{0}}$ $\rightarrow$ 2 ${{\mathit \rho}{(770)}^{0}}$

INSPIRE   PDGID:
S032A94
VALUE (%) EVTS DOCUMENT ID  COMMENT
$-5.6$ $\pm5.0$ $\pm2.9$ 7.3k 1
DARGENT
2017
4-body fit, 4${{\mathit \pi}}$ evts
1  Obtained by analyzing CLEO-c data but not authored by the CLEO Collaboration.
Conservation Laws:
$\mathit CP$ INVARIANCE
References