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Measurements of the branching fractions of,, and at Belle and Belle II

Publication ,  Journal Article
Adachi, I; Ahn, JK; Ahn, Y; Akopov, N; Alghamdi, S; Alhakami, M; Althubiti, N; Amos, K; Anh Ky, N; Antonioli, C; Asner, DM; Aversano, M ...
Published in: Journal of High Energy Physics
August 1, 2025
Published version (DOI)

Using 983.0 fb−1 and 427.9 fb−1 data samples collected with the Belle and Belle II detectors at the KEKB and SuperKEKB asymmetric energy e+e− colliders, respectively, we present studies of the Cabibbo-favored decays and, and the singly Cabibbo-suppressed decay. The ratios of branching fractions of and relative to that of are measured for the first time, while the ratio is also determined and improved by an order of magnitude in precision. The measured branching fraction ratios are Additionally, the ratio is measured to be 0.068 ± 0.010 ± 0.004. Here, the first and second uncertainties are statistical and systematic, respectively. Multiplying the ratios by the branching fraction of the normalization mode,, we obtain the following absolute branching fractions where the third uncertainties are from.

Duke Scholars

Anselm G. Vossen
Author Anselm G. Vossen Physics

Published In

Journal of High Energy Physics

DOI

10.1007/JHEP08(2025)195

EISSN

1029-8479

Publication Date

August 1, 2025

Volume

2025

Issue

8

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics
 

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Adachi, I., Ahn, J. K., Ahn, Y., Akopov, N., Alghamdi, S., Alhakami, M., … Gobbo, B. (2025). Measurements of the branching fractions of,, and at Belle and Belle II. Journal of High Energy Physics, 2025(8). https://doi.org/10.1007/JHEP08(2025)195
Adachi, I., J. K. Ahn, Y. Ahn, N. Akopov, S. Alghamdi, M. Alhakami, N. Althubiti, et al. “Measurements of the branching fractions of,, and at Belle and Belle II.” Journal of High Energy Physics 2025, no. 8 (August 1, 2025). https://doi.org/10.1007/JHEP08(2025)195.
Adachi I, Ahn JK, Ahn Y, Akopov N, Alghamdi S, Alhakami M, et al. Measurements of the branching fractions of,, and at Belle and Belle II. Journal of High Energy Physics. 2025 Aug 1;2025(8).
Adachi, I., et al. “Measurements of the branching fractions of,, and at Belle and Belle II.” Journal of High Energy Physics, vol. 2025, no. 8, Aug. 2025. Scopus, doi:10.1007/JHEP08(2025)195.
Adachi I, Ahn JK, Ahn Y, Akopov N, Alghamdi S, Alhakami M, Althubiti N, Amos K, Anh Ky N, Antonioli C, Asner DM, Aversano M, Ayad R, Babu V, Baghel NK, Bambade P, Banerjee S, Barrett M, Bartl M, Baudot J, Beaubien A, Becherer F, Becker J, Bennett JV, Bertacchi V, Bertemes M, Bertholet E, Bessner M, Bettarini S, Bhuyan B, Bianchi F, Biswas D, Bodrov D, Bondar A, Bonvicini G, Boschetti A, Bozek A, Bračko M, Branchini P, Briere RA, Budano A, Bussino S, Campagna Q, Campajola M, Cao L, Casarosa G, Cecchi C, Chang MC, Cheema P, Cheon BG, Chilikin K, Chin J, Chirapatpimol K, Cho HE, Cho K, Cho SJ, Choi SK, Choudhury S, Cochran J, Consigny I, Corona L, Cui JX, De La Cruz-Burelo E, De La Motte SA, De Pietro G, de Sangro R, Destefanis M, Dey S, Di Canto A, Dingfelder J, Doležal Z, Domínguez Jiménez I, Dong TV, Dorigo M, Dujany G, Ecker P, Feichtinger P, Ferber T, Fillinger T, Finck C, Finocchiaro G, Fodor A, Forti F, Fulsom BG, Gabrielli A, Gale A, Garcia-Hernandez M, Garg R, Gaudino G, Gaur V, Gautam V, Gaz A, Gellrich A, Ghosh D, Ghumaryan H, Giordano R, Giri A, Gironella Gironell P, Glazov A, Gobbo B. Measurements of the branching fractions of,, and at Belle and Belle II. Journal of High Energy Physics. 2025 Aug 1;2025(8).
Journal cover image

Published In

Journal of High Energy Physics

DOI

10.1007/JHEP08(2025)195

EISSN

1029-8479

Publication Date

August 1, 2025

Volume

2025

Issue

8

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics