Search for the decay Bs0 →j/ψπ0 at Belle experiment

D Kumar; B Bhuyan; H Aihara; DM Asner; T Aushev; R Ayad; V Babu; S Banerjee; M Bauer; P Behera; K Belous; J Bennett; M Bessner; T Bilka; D Biswas; A Bobrov; D Bodrov; J Borah; M Bračko; P Branchini; TE Browder; A Budano; M Campajola; D Červenkov; MC Chang; C Chen; BG Cheon; K Chilikin; K Cho; SK Choi; Y Choi; S Choudhury; S Das; N Dash; G De Nardo; G De Pietro; R Dhamija; Z DoleŽal; TV Dong; P Ecker; D Epifanov; D Ferlewicz; BG Fulsom; R Garg; V Gaur; A Garmash; A Giri; P Goldenzweig; E Graziani; K Gudkova; C Hadjivasiliou; K Hayasaka; H Hayashii; S Hazra; D Herrmann; WS Hou; CL Hsu; N Ipsita; A Ishikawa; R Itoh; M Iwasaki; WW Jacobs; S Jia; Y Jin; D Kalita; AB Kaliyar; C Kiesling; CH Kim; DY Kim; KH Kim; YK Kim; K Kinoshita; P Kodyš; A Korobov; S Korpar; E Kovalenko; P KriŽan; P Krokovny; T Kuhr; R Kumar; K Kumara; T Kumita; A Kuzmin; YJ Kwon; T Lam; SC Lee; D Levit; LK Li; Y Li; YB Li; L Li Gioi; J Libby; D Liventsev; Y Ma; M Masuda; T Matsuda; D Matvienko; SK Maurya; F Meier; M Merola

Journal article

Search for the decay Bs0 →j/ψπ0 at Belle experiment

D Kumar, B Bhuyan, H Aihara, DM Asner, T Aushev, R Ayad, V Babu, S Banerjee, M Bauer, P Behera, K Belous, J Bennett, M Bessner, T Bilka, D Biswas, A Bobrov, D Bodrov, J Borah, M Bračko, P Branchini Show all

Physical Review D | Published : 2024

DOI: 10.1103/PhysRevD.109.032007

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Abstract

We have analyzed 121.4 fb-1 of data collected at the ?(5S) resonance by the Belle experiment using the KEKB asymmetric-energy e+e- collider to search for the decay Bs0→J/ψπ0. We observe no signal and report an upper limit on the branching fraction B(Bs0→J/ψπ0) of 1.21×10-5 at 90% confidence level. This result is the most stringent, improving the previous bound by 2 orders of magnitude.