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

Open Access

Measurement of branching fractions and $C P$ asymmetries for $D_{s}^{+} \to K^{+} (η, π^{0})$ and $D_{s}^{+} \to π^{+} (η, π^{0})$ decays at Belle

Y. Guan et al. (Belle Collaboration)

Phys. Rev. D 103, 112005 – Published 9 June 2021

Abstract

We report measurements of the branching fractions and $C P$ asymmetries for $D_{s}^{+} \to K^{+} η$ , $D_{s}^{+} \to K^{+} π^{0}$ , and $D_{s}^{+} \to π^{+} η$ decays, and the branching fraction for $D_{s}^{+} \to π^{+} π^{0}$ . 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 $C P$ asymmetries in these decays are the most precise to date; no evidence for $C P$ violation is found.

Received 17 March 2021
Accepted 27 April 2021

DOI:https://doi.org/10.1103/PhysRevD.103.112005

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.

Published by the American Physical Society