Measurement of branching fractions and CP asymmetries for Ds+ →k+ (η,π0) and Ds+ →π+ (η,π0) decays at Belle

Authors

Y. Guan, University of Cincinnati
A. J. Schwartz, University of Cincinnati
K. Kinoshita, University of Cincinnati
I. Adachi, The Graduate University for Advanced Studies
H. Aihara, The University of Tokyo
S. Al Said, King Abdulaziz University
D. M. Asner, Brookhaven National Laboratory
H. Atmacan, University of Cincinnati
V. Aulchenko, Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
T. Aushev, HSE University
R. Ayad, University of Tabuk
V. Babu, Deutsches Elektronen-Synchrotron (DESY)
P. Behera, Indian Institute of Technology Madras
J. Bennett, University of Mississippi
M. Bessner, University of Hawaiʻi at Mānoa
V. Bhardwaj, Indian Institute of Science Education and Research Mohali
B. Bhuyan, Indian Institute of Technology Guwahati
T. Bilka, Charles University
J. Biswal, Jozef Stefan Institute

Document Type

Article

Publication Date

6-1-2021

Abstract

We report measurements of the branching fractions and CP asymmetries for Ds+→K+η, Ds+→K+π0, and Ds+→π+η decays, and the branching fraction for Ds+→π+π0. 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.

Relational Format

journal article

Recommended Citation

Guan, Y., Schwartz, A. J., Kinoshita, K., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Behera, P., Bennett, J., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., … Belle Collaboration. (2021). Measurement of branching fractions and C P asymmetries for D s + → K + (Η , π 0) and D s + → π + d(Η , π 0)ecays at Belle. Physical Review D, 103(11), 112005. https://doi.org/10.1103/PhysRevD.103.112005

DOI

10.1103/PhysRevD.103.112005

Accessibility Status

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