| Title: |
Measurement of the C P asymmetry in D 0 → π + π − π 0 decays at Belle II |
| Authors: |
Abumusabh, M.; Adachi, I.; Aggarwal, L.; Ahmed, H.; Ahn, Y.; Aihara, H.; Akopov, N.; Alghamdi, S.; Alhakami, M.; Aloisio, A.; Althubiti, N.; Amos, K.; Anh Ky, N.; Asner, D. M.; Atmacan, H.; Aushev, T.; Ayad, R.; Babu, V.; Bae, H.; Baghel, N. K.; Bahinipati, S.; Bambade, P.; Banerjee, Sw.; Barrett, M.; Bartl, M.; Baudot, J.; Beaubien, A.; Becherer, F.; Becker, J.; Bennett, J. V.; Bernlochner, F. U.; Bertacchi, V.; Bertemes, M.; Bertholet, E.; Bessner, M.; Bettarini, S.; Bhardwaj, V.; Bhuyan, B.; Bianchi, F.; Bilka, T.; Biswas, D.; Bobrov, A.; Bodrov, D.; Bonvicini, G.; Borah, J.; Boschetti, A.; Bozek, A.; Bračko, M.; Branchini, P.; Briere, R. A. |
| Contributors: |
Australian Research Council; Bundesministerium Bildung; Austrian Science Fund; H2020 European Research Council; Natural Sciences and Engineering Research Council of Canada; Alliance de recherche numérique du Canada; Canada Foundation for Innovation; National Key Research and Development Program of China; National Natural Science Foundation of China; Natural Science Foundation of Shandong Province; Grantová Agentura České Republiky; European Commission; Ministerstvo Školství, Mládeže a Tělovýchovy; Grantová Agentura, Univerzita Karlova; European Research Council; Seventh Framework Programme; H2020 Marie Skłodowska-Curie Actions; Institut National de Physique Nucléaire et de Physique des Particules; Centre National de la Recherche Scientifique; Agence Nationale de la Recherche; 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; 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; Kementerian Pendidikan 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; The Slovenian Research and Innovation Agency; Ikerbasque, Basque Foundation for Science; Ministerio de Ciencia e Innovación; Agencia Estatal de Investigación; Generalitat Valenciana; Knut och Alice Wallenbergs Stiftelse; 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; Higher Education and Science Committee of the Republic of Armenia; BMFTR, Germany; ICSC—Centro Nazionale di Ricerca in High Performance Computing, Big Data and Quantum Computing; Radiation Science Research Institute, Korea; Foreign Large-Size Research Facility Application Supporting Project, Korea; Global Science Experimental Data Hub Center, Korea; GLORIAD, Korea; Frontiers of Science Program, Mexico |
| Source: |
Physical Review D ; volume 113, issue 5 ; ISSN 2470-0010 2470-0029 |
| Publisher Information: |
American Physical Society (APS) |
| Publication Year: |
2026 |
| Description: |
We measure the time- and phase-space-integrated asymmetry in decays reconstructed in events collected by the Belle II experiment from 2019 to 2022. This sample corresponds to an integrated luminosity of . We require mesons to be produced in decays to determine their flavor at production. Control samples of decays are used to correct for reconstruction-induced asymmetries. The result, , where the first uncertainty is statistical and the second systematic, is the most precise result to date and is consistent with C P conservation. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1103/4yv7-1h85 |
| DOI: |
10.1103/4yv7-1h85/fulltext |
| Availability: |
https://doi.org/10.1103/4yv7-1h85; https://link.aps.org/article/10.1103/4yv7-1h85; http://harvest.aps.org/v2/journals/articles/10.1103/4yv7-1h85/fulltext |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.B2C50213 |
| Database: |
BASE |