| Title: |
Determination of | V c b | using B → D ℓ ν l decays at Belle II |
| Authors: |
Adachi, I.; Adamczyk, K.; Aggarwal, L.; Ahmed, H.; Ahn, Y.; Aihara, H.; Akopov, N.; Alghamdi, S.; Alhakami, M.; Aloisio, A.; Amos, K.; Angelsmark, M.; Ky, N. Anh; Antonioli, C.; Asner, D. M.; Atmacan, H.; Aushev, T.; Aushev, V.; Aversano, M.; Ayad, R.; Babu, V.; Bae, H.; Baghel, N. K.; Bahinipati, S.; Bambade, P.; Banerjee, Sw.; Barrett, M.; Bartl, M.; Baudot, J.; Baur, A.; Beaubien, A.; Becherer, F.; Becker, J.; Bennett, J. V.; Bernlochner, F. U.; Bertacchi, V.; Bertemes, M.; Bertholet, E.; Bessner, M.; Bettarini, S.; Bhuyan, B.; Bianchi, F.; Bilka, T.; Biswas, D.; Bobrov, A.; Bodrov, D.; Bondar, A.; Bonvicini, G.; Borah, J.; Boschetti, A. |
| Contributors: |
Ministry of Education and Science; State Committee of Science; Australian Research Council; Bundesministerium für Bildung, Wissenschaft und Forschung; Austrian Science Fund; European Research Council; Natural Sciences and Engineering Research Council of Canada; Compute Canada; Canarie; National Key Research and Development Program of China; National Natural Science Foundation of China; Natural Science Foundation of Shandong Province; Grantová Agentura České Republiky; Ministerstvo Školství, Mládeže a Tělovýchovy; Univerzita Karlova v Praze; Seventh Framework Programme; HORIZON EUROPE European Research Council; HORIZON EUROPE Marie Sklodowska-Curie Actions; Institut National de Physique Nucléaire et de Physique des Particules; Centre National de la Recherche Scientifique; Agence Nationale de la Recherche; Bundesministerium für Bildung und Forschung; Deutsche Forschungsgemeinschaft; Helmholtz-Gemeinschaft; Max-Planck-Gesellschaft; Alexander von Humboldt-Stiftung; Department of Atomic Energy, Government of India; Department of Science and Technology, Ministry of Science and Technology, India; University of Petroleum and Energy Studies; Israel Science Foundation; United States-Israel Binational Science Foundation; Ministry of Science and Technology, Israel; Istituto Nazionale di Fisica Nucleare Sezione di Padova; European Commission; NextGenerationEU; Japan Society for the Promotion of Science; Ministry of Education, Culture, Sports, Science and Technology; National Research Foundation of Korea; Korea Institute of Science and Technology Information; Korea Research Environment Open Network; Universiti Malaya; Akademi Sains Malaysia; Ministry of Higher Education, Malaysia; Secretaría de Educación Pública; Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional; Ministerstwo Edukacji i Nauki; Narodowe Centrum Nauki; Ministry of Science and Higher Education of the Russian Federation; National Research University Higher School of Economics; University of Tabuk; King Saud University; Javna Agencija za Raziskovalno Dejavnost RS; Ikerbasque, Basque Foundation for Science; Ministerio de Ciencia e Innovación; Agencia Estatal de Investigación; Generalitat Valenciana; National Science and Technology Council; Ministry of Education; Thailand Center of Excellence in Physics; Türkiye Bilimsel ve Teknolojik Araştırma Kurumu; National Research Foundation of Ukraine; Ministry of Education and Science of Ukraine; National Science Foundation; U.S. Department of Energy; Vietnam Academy of Science and Technology; High Energy Accelerator Research Organization; National Institute of Informatics; Brookhaven National Laboratory; Deutsches Elektronen-Synchrotron; Instituto Nazionale di Fisica Nucleare; University of Victoria; Radiation Science Research Institute; Foreign Large-Size Research Facility Application Supporting Project; GLORIAD; Frontiers of Science Program; SINET6; GridKa |
| Source: |
Physical Review D ; volume 112, issue 11 ; ISSN 2470-0010 2470-0029 |
| Publisher Information: |
American Physical Society (APS) |
| Publication Year: |
2025 |
| Description: |
We present a determination of the Cabibbo-Kobayashi-Maskawa matrix element from the decay using a data sample recorded by the Belle II experiment at the SuperKEKB collider. The semileptonic decay of one meson is reconstructed in the modes and B + → D ¯ 0 ( → K + π − ) ℓ + ν ℓ , where ℓ denotes either an electron or a muon. Charge conjugation is implied. The second B meson in the ϒ ( 4 S ) event is not reconstructed explicitly. Using an inclusive reconstruction of the unobserved neutrino momentum, we determine the recoil variable w = v B · v D , where v B and v D are the four-velocities of the B and D mesons. We measure the total decay branching fractions to be B ( B 0 → D − ℓ + ν ℓ ) = ( 2.06 ± 0.05 ( stat ) ± 0.10 ( sys ) ) % and |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1103/vs8k-259v |
| DOI: |
10.1103/vs8k-259v/fulltext |
| Availability: |
https://doi.org/10.1103/vs8k-259v; https://link.aps.org/article/10.1103/vs8k-259v; http://harvest.aps.org/v2/journals/articles/10.1103/vs8k-259v/fulltext |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.3C06C094 |
| Database: |
BASE |