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

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

INSPIRE   PDGID:
S032A15
VALUE (%) DOCUMENT ID TECN  COMMENT
$-0.05$ $\pm0.50$ $\pm0.08$
AALTONEN
2012AD
 CDF Dalitz fit, $\sim{}$350k evts
• • We do not use the following data for averages, fits, limits, etc. • •
$+3.1$ $\pm3.8$ ${}^{+2.7}_{-2.2}$
ASNER
2004A
 CLEO Dalitz fit, 4854 evts
Conservation Laws:
$\mathit CP$ INVARIANCE
References:
AALTONEN 2012AD
PR D86 032007 Measurement of $\mathit CP$-Violation Asymmetries in ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
ASNER 2004A
PR D70 091101 Search for $\mathit CP$ Violation in ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$