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Measurement of branching fractions and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi></mml:math> asymmetries for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>D</mml:mi><mml:mi>s</mml:mi><mml:mo>+</mml:mo></mml:msubsup><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mi>K</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:mo stretchy="false">(</mml:mo><mml:mi>η</mml:mi><mml:mo>,</mml:mo><mml…
We report measurements of the branching fractions and $CP$ asymmetries for ${D}_{s}^{+}\ensuremath{\rightarrow}{K}^{+}\ensuremath{\eta}$, ${D}_{s}^{+}\ensuremath{\rightarrow}{K}^{+}{\ensuremath{\pi}}^{0}$, and ${D}_{s}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}\ensuremath{\eta}$ decays, and the branching fraction for ${D}_{s}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{0}$. Our results are based on a data sample corresponding to an integrated luminosity of $921\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected by the Belle detector at the KEKB ${e}^{+}{e}^{\ensuremath{-}}$ asymmetric-energy collider. …