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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

Belleでの$$D_s^{+} rightarrow K^+ (eta, pi^0) $$および$$D_s^{+} rightarrow pi^+ (eta, pi^0)$$崩壊における分岐比および$$CP$$非対称性の測定

Guan, Y.*; 谷田 聖   ; Belle Collaboration*; 他202名*

Guan, Y.*; Tanida, Kiyoshi; Belle Collaboration*; 202 of others*

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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パーセンタイル:45.23

分野:Astronomy & Astrophysics

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