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Precise Measurement of the D$^{0}$ and D$^{+}$ Lifetimes at Belle II
F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, H. Ahmed, H. Aihara, Н. Акопов, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aushev, V. Babu, S. Bacher, H. Bae, S. Baehr, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, M. Barrett, J. Baudot, M. Bauer, A. Baur, Jürgen Becker, P. K. Behera, J. V. Bennett, E. Bernieri, F. U. Bernlochner, M. Bertemes, E. Bertholet, M. Bessner, S. Bettarini, V. Bhardwaj, F. Bianchi, T. Bilka, S. Bilokin, D. Biswas, A. Bobrov, D. Bodrov, A. Bolz, A. Bożek, M. Bračko, P. Branchini, N. Braun, R. A. Briere, T. E. Browder, A. Budano, S. Bussino, M. Campajola, L. Cao, G. Casarosa, C. Cecchi, D. Červenkov, M.-C. Chang, P. Chang, V. Chekelian, C. Chen, Y.-T. Chen, B. G. Cheon, K. Chilikin, K. Chirapatpimol, H.-E. Cho, K. Cho, S.-J. Cho, S.-K. Choi, S. Choudhury, D. Cinabro, L. Corona, L. Cremaldi, S. Cunliffe, T. Czank, F. Dattola, E. De La Cruz–Burelo, G. de Marino, G. De Nardo, G. De Pietro, R. de Sangro, M. Destefanis, A. De Yta-Hernandez, A. Di Canto, F. Di Capua, J. Dingfelder, Z. Doležal, I. Dom 'ınguez Jiménez, T. V. Dong, M. Dorigo, K. Dort, D. Dossett, S. Dubey, S. Duell, G. Dujany, P. Ecker, D. Epifanov, T. Ferber, D. Ferlewicz, G. Finocchiaro, K. Flood, A. Fodor, F. Forti, B. G. Fulsom, A. Gabrielli, N. Gabyshev, A. Gaz, A. Gellrich, G. Giakoustidis, R. Giordano, A. Giri, A. Glazov, B. Gobbo, R. Godang, P. Goldenzweig, B. Golob, W. Gradl, E. Graziani, D. Greenwald, T. Gu, Y. Guan, K. Gudkova, J. Guilliams, C. Hadjivasiliou, S. Halder, K. Hara, T. Hara, O. Hartbrich, K. Hayasaka, H. Hayashii, S. Hazra, C. Hearty, I. Heredia-De La Cruz, M. Hernández Villanueva, A. D. Hershenhorn, T. Higuchi, E. Hill, H. Hirata, M. Hoek, M. Hohmann, C.-L. Hsu, T. Humair, T. Iijima, K. Inami, G. Inguglia, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, W. W. Jacobs, D. E. Jaffe, E.-J. Jang, S. Jia, H. Junkerkalefeld, H. Kakuno, A. B. Kaliyar, J. Kandra, K. H. Kang, R. Karl, G. Karyan, Y. Kato, T. Kawasaki, C. Kiesling, C.-H. Kim, D. Y. Kim, Y.-K. Kim, Y. Kim, T. D. Kimmel, K. Kinoshita, P. Kodyš, T. Koga, S. Kohani, T. Konno, S. Korpar, E. Kovalenko, R. Kowalewski, T. M. G. Kraetzschmar, F. Krinner, P. Križan, P. Krokovny, T. Kuhr, J. Kumar, M. Kumar, R. Kumar, K. Kumara, S. Kurz, A. Kuzmin, Y.-J. Kwon, S. Lacaprara, K. Lalwani, T. Lam, L. Lanceri, J. S. Lange, M. Laurenza, K. Lautenbach, F. R. Le Diberder, S. C. Lee, P. Leitl, D. Levit, C. Li, L. K. Li, J. Libby, K. Lieret, Z. Liptak, Q. Y. Liu, D. Liventsev, S. Longo, T. Lueck, C. Lyu, R. Manfredi, E. Manoni, C. Mariñas, A. Martini, T. Matsuda, K. Matsuoka, D. Matvienko, J. A. McKenna, F. Meier, M. Merola, F. Metzner, C. Miller, K. Miyabayashi, R. Mizuk, N. Molina-Gonzalez, H. Moon, H. G. Moser, M. Mrvar, C. H. Murphy, R. Mussa, I. Nakamura, K. R. Nakamura, M. Nakao, H. Nakazawa, Z. Natkaniec, A. Natochii, C. Niebuhr, M. Niiyama, S. Nishida, K. Nishimura, S. Ogawa, Y. Onishchuk, H. Ono, Yoshichika Ōnuki, P. Oskin, E. R. Oxford, H. Ozaki, P. Pakhlov, A. Paladino, T. Pang, A. Panta, E. Paoloni, S. Pardi, H. Park, S.-H. Park, B. Paschen, A. Passeri, A. Pathak, S. Patra, S. Paul, T. K. Pedlar, I. M. Peruzzi, R. Peschke, R. Pestotnik, Frédéric Pham, M. Piccolo, L. E. Piilonen, G. Pinna Angioni, P. L. M. Podesta-Lerma, T. Podobnik, S. Pokharel, G. Polat, V. Popov, C. Praz, E. Prencipe, M. T. Prim, M. V. Purohit, H. Purwar, N. Rad, P. Rados, S. Raiz, S. Reiter, M. Remnev, I. Ripp-Baudot, G. Rizzo, L. B. Rizzuto, S. H. Robertson, J. M. Roney, A. Rostomyan, N. Rout, M. Różańska, D. Sahoo, D. A. Sanders, S. Sandilya, L. Šantelj, Y. Sato, V. Savinov, B. Scavino, J. Schueler, C. Schwanda, A. J. Schwartz, Y. Seino, A. Selce, K. Senyo, J. Serrano, C. Sfienti, J.-G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, R. Sobie, A. Soffer, A. Sokolov, E. Solovieva, S. Spataro, B. Spruck, M. Starič, S. Stefkova, Z. S. Stottler, R. Stroili, J. Strube, M. Sumihama, W. Sutcliffe, S. Y. Suzuki, H. Svidras, M. Tabata, M. Takizawa, U. Tamponi, S. Tanaka, K. Tanida, H. Tanigawa, N. Taniguchi, F. Tenchini, R. Tiwary, D. Tonelli, E. Torassa, N. Toutounji, K. Trabelsi, T. Tsuboyama, I. Ueda, S. Uehara, Y. Uematsu, T. Uglov, K. Unger, Y. Unno, K. Uno, S. Uno, P. Urquijo, Y. Ushiroda, Y. V. Usov, S. Vahsen, R. van Tonder, G. Varner, A. Vinokurova, L. Vitale, A. Vossen, E. Waheed, H. M. Wakeling, E. Wang, M.-Z. Wang, X. L. Wang, A. Warburton, M. Watanabe, M. Welsch, C. Wessel, J. Wiechczynski, E. Won, Xianwu Xu, B. Yabsley, S. Yamada, W. Yan, H. Ye, J. Yelton, K. Yoshihara, Y. Yusa, L. Zani, V. Zhilich, Q. Zhou, V. Zhukova, R. Žlebčík
Bibliographic record
VenuePubMed · 2021
Typepreprint
Languageen
FieldPhysics and Astronomy
TopicParticle physics theoretical and experimental studies
Canadian institutionsnot available
FundersInstitut National de Physique Nucléaire et de Physique des ParticulesAkademi Sains MalaysiaJapan Society for the Promotion of ScienceNatural Sciences and Engineering Research Council of CanadaKorea Research Environment Open NetworkCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalIstituto Nazionale di Fisica NucleareNational Institute of InformaticsMinistry of Science and Higher Education of the Russian FederationNational Research University Higher School of EconomicsTürkiye Bilimsel ve Teknolojik Araştırma KurumuNational Research Foundation of UkraineMax-Planck-GesellschaftMinistry of Education, Culture, Sports, Science and TechnologyKorea Institute of Science and Technology InformationLiaoning Revitalization Talents ProgramBundesministerium für Bildung und ForschungKorea Institute of Science and TechnologyDeutsches Elektronen-SynchrotronThailand Center of Excellence in PhysicsGeneralitat ValencianaNational Research FoundationAustrian Science FundCAS Center for Excellence in Particle PhysicsChinese Academy of SciencesU.S. Department of EnergyNational Natural Science Foundation of ChinaDeutsche ForschungsgemeinschaftJavna Agencija za Raziskovalno Dejavnost RSAlexander von Humboldt-StiftungBundesministerium für Bildung, Wissenschaft und ForschungMinistry of Education and Science of UkraineVietnam Academy of Science and TechnologyCompute CanadaUniversity of TabukNational Science FoundationCanarieCentre National de la Recherche ScientifiqueUniverzita Karlova v Praze
KeywordsPhysicsLuminosityColliderBar (unit)Particle physicsEnergy (signal processing)Electron–positron annihilationNuclear physicsHadronAstrophysics
Abstract
We report a measurement of the D^{0} and D^{+} lifetimes using D^{0}→K^{-}π^{+} and D^{+}→K^{-}π^{+}π^{+} decays reconstructed in e^{+}e^{-}→cc[over ¯] data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy e^{+}e^{-} collider. The data, collected at center-of-mass energies at or near the ϒ(4S) resonance, correspond to an integrated luminosity of 72 fb^{-1}. The results, τ(D^{0})=410.5±1.1(stat)±0.8(syst) fs and τ(D^{+})=1030.4±4.7(stat)±3.1(syst) fs, are the most precise to date and are consistent with previous determinations.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.003
Threshold uncertainty score0.009
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
Opus teacher head0.023
GPT teacher head0.216
Teacher spread0.193 · how far apart the two teachers sit on this one work
Validation status
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".
Quick stats
Citations7
Published2021
Admission routes1
Has abstractyes