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Measurement of branching fractions and $CP$ asymmetries for $D_s^{+} rightarrow K^+ (eta, pi^0) $ and $D_s^{+} rightarrow pi^+ (eta, pi^0)$ decays at Belle

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 نشر من قبل Yinghui Guan
 تاريخ النشر 2021
  مجال البحث
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We report measurements of the branching fractions and $CP$ asymmetries for $D_s^{+} rightarrow K^{+} eta $, $D_s^{+} rightarrow K^{+} pi^0 $, and $D_s^{+} rightarrow pi^{+} eta $ decays, and the branching fraction for $D_s^{+} rightarrow pi^{+} pi^0$. Our results are based on a data sample corresponding to an integrated luminosity of 921 fb$^{-1}$ collected by the Belle detector at the KEKB $e^+e^-$ asymmetric-energy collider. Our measurements of $CP$ asymmetries in these decays are the most precise to-date; no evidence for $CP$ violation is found.



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