${{\mathit D}^{\pm}}$ $\mathit CP$-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 K}^{\mp}}$2 ${{\mathit \pi}^{\pm}}$) in ${{\mathit D}^{+}}$ $\rightarrow$ ${{\mathit K}^{-}}$2 ${{\mathit \pi}^{+}}$, ${{\mathit D}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}$2 ${{\mathit \pi}^{-}}$

INSPIRE   PDGID:
S031A01
VALUE (%) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ -0.18 \pm0.16 }$ OUR AVERAGE
$-0.16$ $\pm0.15$ $\pm0.09$ 2.3M
ABAZOV
2014L
 D0 ${{\mathit p}}{{\overline{\mathit p}}}$, $\sqrt {s }$ = 1.96 TeV
$-0.3$ $\pm0.2$ $\pm0.4$
BONVICINI
2014
CLEO All CLEO-c runs
• • We do not use the following data for averages, fits, limits, etc. • •
$-0.1$ $\pm0.4$ $\pm0.9$ 231k
MENDEZ
2010
CLEO See BONVICINI 2014
$-0.5$ $\pm0.4$ $\pm0.9$
DOBBS
2007
CLEO See MENDEZ 2010
Conservation Laws:
$\mathit CP$ INVARIANCE
References