Improved measurement of Born cross sections for χbJ ω and χbJ (π+π−π0)non−ω (J = 0, 1, 2) at Belle and Belle II

A bstract We study the processes χ bJ ω and χ bJ ( π + π − π 0 ) non −ω ( J = 0, 1, 2) at center-of-mass energies $$\sqrt{s}$$ from 10.73 to 11.02 GeV using a 142 . 5 fb − 1 data sample collected with the Belle detector at the KEKB asymmetric-energy e + e − collider; and at $$\sqrt{s}\sim 10.75$$ GeV using a 19 . 8 fb − 1 sample collected with Belle II at SuperKEKB. We find that the Υ(10753) state decays into χ bJ ω but not into χ bJ ( π + π − π 0 ) non −ω , while the Υ(10860) state, in contrast, decays into χ bJ ( π + π − π 0 ) non −ω but not into χ bJ ω . The mass and width of the Υ(10753) state are measured to be (10756 . 1 ± 3 . 4(stat . ) ± 2 . 7(syst . )) MeV/ c 2 and (32 . 2 ± 11 . 3(stat . ) ± 14 . 9(syst . )) MeV. The products of the partial width to e + e − and branching fractions for Υ(10753) → χ b 1 ω and Υ(10753) → χ b 2 ω are (1 . 57 ± 0 . 27(stat . ) ± 0 . 22(syst . )) eV and (1 . 39 ± 0 . 41(stat . ) ± 0 . 33(syst . )) eV.

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Journal
Journal of High Energy Physics
Published
2026-04-14
DOI
https://doi.org/10.1007/jhep04(2026)101
Primary Topic
Quantum Chromodynamics and Particle Interactions
Type
article
Field-Weighted Citation Impact
0.00

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article

Improved measurement of Born cross sections for χbJ ω and χbJ (π+π−π0)non−ω (J = 0, 1, 2) at Belle and Belle II

H. Atmacan, C. Cecchi, T. E. Browder, G. Dujany et al.
Journal of High Energy Physics
Quantum Chromodynamics and Particle Interactions
article

Improved measurement of Born cross sections for χbJ ω and χbJ (π+π−π0)non−ω (J = 0, 1, 2) at Belle and Belle II

H. Atmacan, C. Cecchi, T. E. Browder, G. Dujany, P. Chang, Н. Акопов, J. V. Bennett, J. X. Cui, P. Cheema, D. Biswas, S. Bussino, A. Di Canto, J. Cerasoli, V. Aushev, M. Bessner, M. Angelsmark, Z. Doležal, I. Adachi, D. Bodrov, N. Anh Ky, T. Fillinger, A. E. Bolz, D. Dossett, M. Campajola, J. Dingfelder, K. Cho, R. A. Briere, G. Finocchiaro, P. Bambade, M. Dorigo, A. Budano, Q. Campagna, N. Althubiti, K. Dugic, M. Bračko, R. Ayad, F. Bianchi, E. Bertholet, G. Casarosa, T. Ferber, R. de Sangro, G. De Nardo, H.-E. Cho, S.-K. Choi, S.-J. Cho, M.-C. Chang, S. A. De La Motte, A. Bozek, V. Babu, R. Cheaib, A. Aloisio, P. Feichtinger, F. Forti, A. Bobrov, D. Epifanov, A. Baur, S. Bahinipati, A. Boschetti, J. Chin, A. Bondar, P. Branchini, B. G. Cheon, M. Bertemes, J. Eppelt, F. U. Bernlochner, A. Beaubien, M. Destefanis, K. Chirapatpimol, C. Finck, L. Corona, V. Bertacchi, M. Barrett, M. Alhakami, E. De La Cruz-Burelo, I. Consigny, J. Cochran, H. Bae, S. Bettarini, B. Bhuyan, G. De Pietro, L. Aggarwal, H. Aihara, N. K. Baghel, A. Fodor, F. Di Capua, M. Aversano, M. Bartl, I. Domínguez Jiménez, Sw. Banerjee, H. Ahmed, J. Becker, R. Dhamija, T. V. Dong, D. M. Asner, K. Chilikin, S. Choudhury, F. Becherer, S. Dey, J. Baudot
article en

Abstract

A bstract We study the processes χ bJ ω and χ bJ ( π + π − π 0 ) non −ω ( J = 0, 1, 2) at center-of-mass energies $$\sqrt{s}$$ from 10.73 to 11.02 GeV using a 142 . 5 fb − 1 data sample collected with the Belle detector at the KEKB asymmetric-energy e + e − collider; and at $$\sqrt{s}\sim 10.75$$ GeV using a 19 . 8 fb − 1 sample collected with Belle II at SuperKEKB. We find that the Υ(10753) state decays into χ bJ ω but not into χ bJ ( π + π − π 0 ) non −ω , while the Υ(10860) state, in contrast, decays into χ bJ ( π + π − π 0 ) non −ω but not into χ bJ ω . The mass and width of the Υ(10753) state are measured to be (10756 . 1 ± 3 . 4(stat . ) ± 2 . 7(syst . )) MeV/ c 2 and (32 . 2 ± 11 . 3(stat . ) ± 14 . 9(syst . )) MeV. The products of the partial width to e + e − and branching fractions for Υ(10753) → χ b 1 ω and Υ(10753) → χ b 2 ω are (1 . 57 ± 0 . 27(stat . ) ± 0 . 22(syst . )) eV and (1 . 39 ± 0 . 41(stat . ) ± 0 . 33(syst . )) eV.

Journal of High Energy PhysicsVol. 2026(4)
Twitter (United States) (US), Korea Electric Power Corporation (South Korea) (KR)
National Science Foundation, U.S. Department of Energy, Alexander von Humboldt-Stiftung, Univerzita Karlova v Praze, Grantová Agentura, Univerzita Karlova, University of Tabuk, Vietnam Academy of Science and Technology, Thailand Center of Excellence in Physics, National Research Foundation of Ukraine, European Commission, National Research Foundation, Department of Atomic Energy, Government of India, Deutsche Forschungsgemeinschaft, Agence Nationale de la Recherche, Ministry of Education, Culture, Sports, Science and Technology, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, National Natural Science Foundation of China, Ministerstvo Školství, Mládeže a Tělovýchovy, Grantová Agentura České Republiky, King Saud University, Austrian Science Fund, Generalitat Valenciana, Korea Institute of Science and Technology, Korea Institute of Science and Technology Information, National Research Foundation of Korea, Israel Science Foundation, Ikerbasque, Basque Foundation for Science, Knut och Alice Wallenbergs Stiftelse, Max-Planck-Gesellschaft, Javna Agencija za Raziskovalno Dejavnost RS, Türkiye Bilimsel ve Teknolojik Araştırma Kurumu, Centre National de la Recherche Scientifique, Ministerio de Ciencia e Innovación, Forskningsrådet om Hälsa, Arbetsliv och Välfärd, Natural Science Foundation of Shandong Province, National Research University Higher School of Economics, Ministry of Education and Science of Ukraine, Ministry of Science and Higher Education of the Russian Federation, Istituto Nazionale di Fisica Nucleare, Bundesministerium für Bildung, Wissenschaft und Forschung, National Science and Technology Council, Alliance de recherche numérique du Canada, Korea Research Environment Open Network, Natural Sciences and Engineering Research Council of Canada, Australian Research Council, Deutsches Elektronen-Synchrotron, Japan Society for the Promotion of Science, Akademi Sains Malaysia, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, National Key Research and Development Program of China, Institut National de Physique Nucléaire et de Physique des Particules, Pacific Northwest National Laboratory
Openalex Percentile: Top 26%
Quantum Chromodynamics and Particle Interactions
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