Precise measurements of D 0 → K − ℓ + ν ℓ and D + → K ¯ 0 ℓ + ν ℓ decays

M. Ablikim; Mikhail N. Achasov; P. Adlarson; X. Ai; C. S. Akondi; R. Aliberti; A. Amoroso; Q. An; Y. H. An; Yunhao Bai; Olga Bakina; Y. Ban; Huirong Bao; X. L. Bao; V. Batozskaya; K. Begzsuren; N. Berger; M. Berlowski; M. B. Bertani; D. Bettoni; F. Bianchi; E. Bianco; A. Bortone; Igor R. Boyko; Roy A. Briere; A. Brueggemann; D. Cabiati; Hao Ming Cai; M. H. Cai; X. Cai; Alessandro Calcaterra; G. F. Cao; Ning Cao; Serkant Ali Cetin; Xuedong Chai; J. F. Chang; T. T. Chang; G. R. Che; Yuzhi Che; C. H. Chen; Chao Chen; Gang Chen; H. S. Chen; H. Y. Chen; M. L. Chen; S. J. Chen; Shaomin Chen; T. Chen; W. Chen; Xurong Chen; X. T. Chen; X. Y. Chen; Yuanbo Chen; Y. Q. Chen; Z. K. Chen; Jie Hong Cheng; L.N. Cheng; S.-K. Choi; X. Chu; G. Cibinetto; F. Cossio; J. J. Cottee Meldrum; H. L. Dai; J. P. Dai; X. Dai; A. Dbeyssi; R. E. de Boer; Dmitri Dedovich; C. Q. Deng; Z. Y. Deng; A. G. Denig; I. Denisenko; M. Destefanis; F. De Mori; X. X. Ding; Y. Ding; Y. X. Ding; Y. Ding; Junyue Dong; L. Y. Dong; M. Y. Dong; X. Dong; M. C. Du; S. X. Du; S. X. Du; X. L. Du; Y. Q. Du; Yunyou Duan; Z. H. Duan; P. Egorov; G. F. Fan; J. J. Fan; Y. H. Fan; Jian Fang; J. Fang; S. S. Fang; Wenxing Fang; Y. Fang; L. Fava; F. Feldbauer

doi:10.1103/3fnf-x8k8

Precise measurements of D 0 → K − ℓ + ν ℓ and D + → K ¯ 0 ℓ + ν ℓ decays

Physical review. D/Physical review. D. 2026 Open access

Read full text

Authors: M. Ablikim, Mikhail N. Achasov, P. Adlarson, X. Ai, C. S. Akondi, R. Aliberti, A. Amoroso, Q. An, Y. H. An, Yunhao Bai, Olga Bakina, Y. Ban

+88 more

Huirong Bao, X. L. Bao, V. Batozskaya, K. Begzsuren, N. Berger, M. Berlowski, M. B. Bertani, D. Bettoni, F. Bianchi, E. Bianco, A. Bortone, Igor R. Boyko, Roy A. Briere, A. Brueggemann, D. Cabiati, Hao Ming Cai, M. H. Cai, X. Cai, Alessandro Calcaterra, G. F. Cao, Ning Cao, Serkant Ali Cetin, Xuedong Chai, J. F. Chang, T. T. Chang, G. R. Che, Yuzhi Che, C. H. Chen, Chao Chen, Gang Chen, H. S. Chen, H. Y. Chen, M. L. Chen, S. J. Chen, Shaomin Chen, T. Chen, W. Chen, Xurong Chen, X. T. Chen, X. Y. Chen, Yuanbo Chen, Y. Q. Chen, Z. K. Chen, Jie Hong Cheng, L.N. Cheng, S.-K. Choi, X. Chu, G. Cibinetto, F. Cossio, J. J. Cottee Meldrum, H. L. Dai, J. P. Dai, X. Dai, A. Dbeyssi, R. E. de Boer, Dmitri Dedovich, C. Q. Deng, Z. Y. Deng, A. G. Denig, I. Denisenko, M. Destefanis, F. De Mori, X. X. Ding, Y. Ding, Y. X. Ding, Y. Ding, Junyue Dong, L. Y. Dong, M. Y. Dong, X. Dong, M. C. Du, S. X. Du, S. X. Du, X. L. Du, Y. Q. Du, Yunyou Duan, Z. H. Duan, P. Egorov, G. F. Fan, J. J. Fan, Y. H. Fan, Jian Fang, J. Fang, S. S. Fang, Wenxing Fang, Y. Fang, L. Fava, F. Feldbauer

DOI: 10.1103/3fnf-x8k8

Cited by: 1

References: 70

Abstract

Using e + e − collision data corresponding to an integrated luminosity of 20.3 fb − 1 , collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we present precise measurements of D 0 → K − ℓ + ν ℓ and D + → K ¯ 0 ℓ + ν ℓ ( ℓ = e , μ ) decays. The branching fractions of D 0 → K − e + ν e , D 0 → K − μ + ν μ , D + → K ¯ 0 e + ν e , and D + → K ¯ 0 μ + ν μ are measured to be ( 3.548 ± 0.00 6 stat ± 0.01 7 syst ) % , ( 3.445 ± 0.00 7 stat ± 0.01 7 syst ) % , ( 8.928 ± 0.02 5 stat ± 0.05 0 syst ) % , and

Fields of Study & Subjects

Particle physics theoretical and experimental studies Quantum Chromodynamics and Particle Interactions Neutrino Physics Research

Publication details

Journal / source: Physical review. D/Physical review. D.
Publisher: American Physical Society (APS)
Volume: 114
Issue: 3
Publication date: 10 July 2026
Language: EN

References 70