Search for (Formula presented) (J = 0, 1, 2) near (Formula presented) = 10.746 GeV at Belle II

M Abumusabh; I Adachi; L Aggarwal; H Ahmed; Y Ahn; H Aihara; N Akopov; S Alghamdi; M Alhakami; A Aloisio; N Althubiti; K Amos; N Anh Ky; DM Asner; H Atmacan; T Aushev; V Aushev; R Ayad; V Babu; H Bae; NK Baghel; S Bahinipati; P Bambade; S Banerjee; M Barrett; M Bartl; J Baudot; A Baur; A Beaubien; F Becherer; J Becker; JV Bennett; FU Bernlochner; V Bertacchi; M Bertemes; E Bertholet; M Bessner; S Bettarini; V Bhardwaj; B Bhuyan; F Bianchi; T Bilka; D Biswas; A Bobrov; D Bodrov; G Bonvicini; J Borah; A Boschetti; A Bozek; M Bračko; P Branchini; RA Briere; TE Browder; A Budano; S Bussino; Q Campagna; M Campajola; G Casarosa; C Cecchi; MC Chang; P Cheema; C Chen; L Chen; BG Cheon; C Cheshta; H Chetri; K Chilikin; J Chin; K Chirapatpimol; HE Cho; K Cho; SJ Cho; SK Choi; S Choudhury; JA Colorado-Caicedo; L Corona; JX Cui; E De La Cruz-Burelo; G De Nardo; G De Pietro; R de Sangro; M Destefanis; S Dey; A Di Canto; J Dingfelder; Z Doležal; I Domínguez Jiménez; TV Dong; M Dorigo; K Dugic; G Dujany; P Ecker; J Eppelt; R Farkas; P Feichtinger; T Ferber; T Fillinger; C Finck; G Finocchiaro; F Forti

Journal article

Search for (Formula presented) (J = 0, 1, 2) near (Formula presented) = 10.746 GeV at Belle II

M Abumusabh, I Adachi, L Aggarwal, H Ahmed, Y Ahn, H Aihara, N Akopov, S Alghamdi, M Alhakami, A Aloisio, N Althubiti, K Amos, N Anh Ky, DM Asner, H Atmacan, T Aushev, V Aushev, R Ayad, V Babu, H Bae Show all

Physical Review D | American Physical Society (APS) | Published : 2026

DOI: 10.1103/2rv3-s3w7

Open access

Abstract

We search for the eþe− → γχbJ (J ¼ 0, 1, 2) processes at center-of-mass energies ps ¼ 10.653, 10.701, ffiffi 10.746, and 10.804 GeV. These data were collected with the Belle II detector at the SuperKEKB collider and correspond to 3.5, 1.6, 9.8, and 4.7 fb−1 of integrated luminosity, respectively. We set upper limits at the 90% confidence level on the Born cross sections for eþe− → γχbJ at each center-of-mass energy pffiffi s near 10.746 GeV. The upper limits at 90% confidence level on the Born cross sections for eþe− → γχb1 are significantly smaller than the corresponding measured values for eþe− → ωχb1 and eþe− → πþπ−ϒð2SÞ at ffiffi ps ¼ 10.746 GeV.