${{\mathit D}_{{s}}^{+}}−{{\mathit D}_{{s}}^{-}}$ $\mathit CP$-VIOLATING DECAY-RATE ASYMMETRIES

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

$\mathit A_{CP}$( ${{\mathit K}_S^0}$ ${{\mathit \pi}^{\pm}}$ ) in ${{\mathit D}_{{s}}^{\pm}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{\pm}}$

INSPIRE   PDGID:
S034A02
VALUE (%) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 0.20 \pm0.18 }$ OUR AVERAGE
$0.16$ $\pm0.17$ $\pm0.05$ 721k
AAIJ
2019T
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
$0.6$ $\pm2.0$ $\pm0.3$ 14k
LEES
2013E
 BABR ${{\mathit e}^{+}}{{\mathit e}^{-}}$ at ${{\mathit \Upsilon}{(4S)}}$
$5.45$ $\pm2.50$ $\pm0.33$
KO
2010
BELL ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $\approx{}{{\mathit \Upsilon}{(4S)}}$
$16.3$ $\pm7.3$ $\pm0.3$ 0.4k
MENDEZ
2010
CLEO ${{\mathit e}^{+}}{{\mathit e}^{-}}$ at 4170 MeV
• • We do not use the following data for averages, fits, limits, etc. • •
$27$ $\pm11$
ADAMS
2007A
 CLEO See MENDEZ 2010
Conservation Laws:
$\mathit CP$ INVARIANCE
References:
AAIJ 2019T
PRL 122 191803 Search for $CP$ violation in $D_s^+\to K_S^0 \pi^+$, $D^+\to K_S^0 K^+$ and $D^+\to \phi \pi^+$ decays
LEES 2013E
PR D87 052012 Search for $\mathit CP$ Violation in the Decays ${{\mathit D}^{\pm}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}$ , ${{\mathit D}_{{s}}^{\pm}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}$ , and ${{\mathit D}_{{s}}^{\pm}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{\pm}}$
KO 2010
PRL 104 181602 Search for $\mathit CP$ Violation in the Decays ${{\mathit D}_{{{}(s)}}}^{+}} \rightarrow {{\mathit K}_S^0} {{\mathit \pi}^{+}} and {{\mathit D}_{{{}(s)}}}^{+}} \rightarrow {{\mathit K}_S^0} {{\mathit K}^{+}}
MENDEZ 2010
PR D81 052013 Measurements of ${{\mathit D}}$ Meson Decays to Two Pseudoscalar Mesons
ADAMS 2007A
PRL 99 191805 Suppressed Decays of ${{\mathit D}_{{s}}^{+}}$ Mesons to Two Pseudoscalar Mesons