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

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

INSPIRE   PDGID:
S032A23
VALUE (%) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 0.2 \pm0.5 }$ OUR AVERAGE
$-0.01$ $\pm0.91$
AAIJ
2018K
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
$0.3$ $\pm0.3$ $\pm0.6$
BONVICINI
2014
CLEO All CLEO-c runs
• • We do not use the following data for averages, fits, limits, etc. • •
$+0.5$ $\pm0.4$ $\pm0.9$ 150k
MENDEZ
2010
CLEO See BONVICINI 2014
$-0.4$ $\pm0.5$ $\pm0.9$
DOBBS
2007
CLEO See BONVICINI 2014
Conservation Laws:
$\mathit CP$ INVARIANCE
References