| Title: |
Search for a Dark Higgs Boson Produced in Association with Inelastic Dark Matter at the Belle II Experiment |
| Authors: |
Adachi, I.; Aggarwal, L.; Ahmed, H.; Aihara, H.; Akopov, N.; Alghamdi, S.; Alhakami, M.; Aloisio, A.; Althubiti, N.; Amos, K.; Angelsmark, M.; Anh Ky, N.; Antonioli, C.; Asner, D. M.; Atmacan, H.; Aushev, V.; Aversano, M.; Ayad, R.; Babu, V.; Baghel, N. K.; Bahinipati, S.; Bambade, P.; Banerjee, Sw.; Bansal, S.; 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.; Bolz, A.; Bondar, A.; Bonvicini, G.; Borah, J.; Boschetti, A.; Bozek, 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; 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 Letters ; volume 135, issue 13 ; ISSN 0031-9007 1079-7114 |
| Publisher Information: |
American Physical Society (APS) |
| Publication Year: |
2025 |
| Description: |
Inelastic dark matter models that have two dark matter particles and a massive dark photon can reproduce the observed relic dark matter density without violating cosmological limits. The mass splitting between the two dark matter particles and , with , is induced by a dark Higgs field and a corresponding dark Higgs boson . We present a search for dark matter in events with two vertices, at least one of which must be displaced from the interaction region, and missing energy. Using a data sample collected at Belle II, which operates at the SuperKEKB collider, we observe no evidence for a signal. We set upper limits on the product of the production cross section , and the product of branching fractions , where x+x− indicates μ+μ−,π+π−, or K+K−, as functions of h′ mass and lifetime at the level of |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1103/37w5-glpp |
| DOI: |
10.1103/37w5-glpp/fulltext |
| Availability: |
https://doi.org/10.1103/37w5-glpp; https://link.aps.org/article/10.1103/37w5-glpp; http://harvest.aps.org/v2/journals/articles/10.1103/37w5-glpp/fulltext |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.D6759D0A |
| Database: |
BASE |