Measurement of Charge Asymmetries in Charmless Hadronic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">B</mml:mi></mml:math>Meson Decays

Abstract

We search for $\mathrm{CP}$-violating charge asymmetries ( ${A}_{\mathrm{CP}}$ ) in the $B$ meson decays to ${K}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{\ensuremath{\mp}}$, ${K}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{0}$, ${K}_{S}^{0}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$, ${K}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\eta}}^{\ensuremath{'}}$, and $\ensuremath{\omega}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$. Using 9.66 million $\ensuremath{\Upsilon}(4S)$ decays collected with the CLEO detector, the statistical precision on ${A}_{\mathrm{CP}}$ is in the range of $\ifmmode\pm\else\textpm\fi{}0.12$ to $\ifmmode\pm\else\textpm\fi{}0.25$ depending on decay mode. While $\mathrm{CP}$-violating asymmetries of up to $\ifmmode\pm\else\textpm\fi{}0.5$ are possible within the standard model, the measured asymmetries are consistent with zero in all five decay modes studied.