← Back to cohort
Determination of spin and parity of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"> <mml:msubsup> <mml:mrow> <mml:mi>D</mml:mi> </mml:mrow> <mml:mrow> <mml:mo stretchy="false">(</mml:mo> <mml:mi>s</mml:mi> <mml:mo stretchy="false">)</mml:mo> </mml:mrow> <mml:mrow> <mml:mo>⁎</mml:mo> </mml:mrow> </mml:msubsup> </mml:math> mesons
М. Н. Ачасов, P. Adlarson, R. Aliberti, A. Amoroso, M. R. An, Q. An, O. Bakina, I. Balossino, Y. Ban, V. Batozskaya, K. Begzsuren, N. Berger, M. Berlowski, M. Bertani, D. Bettoni, F. Bianchi, E. Bianco, J. Bloms, A. Bortone, I. Boyko, R. A. Briere, A. Brueggemann, H. Cai, X. Cai, A. Calcaterra, G. F. Cao, N. Cao, S. A. Çetin, J. F. Chang, T. T. Chang, W. L. Chang, G. R. Che, G. Chelkov, C. Chen, Chao Chen, G. Chen, H.S. Chen, M.L. Chen, S.J. Chen, S.M. Chen, T. Chen, X.R. Chen, X.T. Chen, Y.B. Chen, Y.Q. Chen, Z.J. Chen, S. K. Choi, X. Chu, G. Cibinetto, S. C. Coen, F. Cossio, J. J. Cui, J. P. Dai, A. Dbeyssi, R. E. de Boer, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, F. De Mori, B. Ding, X. X. Ding, Y. Ding, J. Dong, L. Y. Dong, M. Y. Dong, X. Dong, S. X. Du, Z. H. Duan, P. Egorov, Y. L. Fan, J. Fang, S. S. Fang, Wenxing Fang, Y. Fang, R. Farinelli, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, J. H. Feng, K. Fischer, M. Fritsch, C. Fritzsch, C. D. Fu, Y. W. Fu, He Gao, Ya Gao, Yang Gao, S. Garbolino, I. Garzia, P. T. Ge, Z. W. Ge, C. Geng, E. Gersabeck, A. Gilman, K. Goetzen, L. Gong, W. X. Gong, W. Gradl, S. Gramigna, M. Greco, M. H. Gu, Y. T. Gu, C. Y Guan, Z. L. Guan, A. Q. Guo, L. B. Guo, R. P. Guo, Y. P. Guo, A. Guskov, H. X.T., W. Y. Han, X. Q. Hao, F. A. Harris, K. K. He, K. L. He, F. H. Heinsius, C. H. Heinz, Y. K. Heng, C. Herold, T. Holtmann, P. C. Hong, G. Y. Hou, Y. R. Hou, Z. L. Hou, H. M. Hu, J. F. Hu, Y. Hu, G. S. Huang, K. X. Huang, L. Q. Huang, X. T. Huang, Yin Huang, T. Hussain, N. Hüsken, W. Imoehl, M. Irshad, P. Jackson, S. Jaeger, S. Janchiv, J. H. Jeong, Q. P. Ji, X. B. Ji, X. L. Ji, Y. Y. Ji, Z. Jiao, P. C. Jiang, S. S. Jiang, T. J. Jiang, X. S. Jiang, Y. Jiang, J. B. Jiao, S. Jin, Y. Jin, M. Q. Jing, T. Johansson, X. K., S. Kabana, N. Kalantar-Nayestanaki, X. L. Kang, X. S. Kang, R. Kappert, M. Kavatsyuk, B. C. Ke, A. Khoukaz, R. Kiuchi, R. Kliemt, L. Koch, O. B. Kolcu, B. Kopf, M. Kuessner, A. Kupść, W. Kühn, J. J. Lane, J. S. Lange, P. Larin, A. Lavania, L. Lavezzi, T. T. Lei, Z. H. Lei, H. Leithoff, M. Lellmann, T. Lenz, C. Li, C.H. Li, Cheng Li, D.M. Li, F. Li, G. Li, H. Li, H.B. Li, H.J. Li, H.N. Li, Hui Li, J.R. Li, J.S. Li, J.W. Li, Ke Li, Lain‐Jong Li, L.K. Li, L. K. Li, M.H. Li, P. R. Li, S.X. Li, T. Li, W.D. Li, Weihan Li, X. H. Li, Xiaoyu Li, Xiaoyu Li, Y.G. Li, Z.J. Li, Z.X. Li, Z.Y. Li, C. Liang, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, L. Z. Liao, J. Libby, A. Limphirat, D. X. Lin, T. Lin, B.J. Liu, B.X. Liu, C. Liu, C.X. Liu, D. Liu, F. H. Liu, Fang Liu, Feng Liu, G.M. Liu, H. Liu, H.B. Liu, H.M. Liu, Huanhuan Liu, Huihui Liu, J.B. Liu, Junnan Liu, J.Y. Liu, Ke Liu, K.Y. Liu, L. Liu, L.C. Liu, Lu Liu, M.H. Liu, P.L. Liu, Q. Liu, S.B. Liu, T. Liu, W.K. Liu, W.M. Liu, X. Liu, Yong Liu, Y.B. Liu, Z.A. Liu, Z.Q. Liu, X. Lou, F. X. Lu, H. Lu, J. G. Lu, X. L. Lu, Y. Lu, Y. P. Lu, Z. H. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, X. R. Lyu, Y. F. Lyu, F.C. Ma, H. L., Jinglu Ma, Long Ma, M. M. Ma, Q. M. Ma, R. Q. Ma, R. Ma, X. Y. Ma, Y. Ma, F. E. Maas, M. Maggiora, S. Maldaner, S. Malde, A. Mangoni, Y. J. Mao, Z. P. Mao, S. Marcello, Z. X. Meng, J. G. Messchendorp, G. Mezzadri, H. Miao, T. J. Min, R. E. Mitchell, X. H. Mo, N. Yu. Muchnoi, Y. Nefedov, F. Nerling, I. B. Nikolaev, Z. Ning, S. Nisar, Y. Niu, S. L. Olsen, Q. Ouyang, S. Pacetti, X. Pan, Y. Pan, A. Pathak, Y. P. Pei, M. Pelizaeus, H. P. Peng, Κ. Peters, J. L. Ping, R. G. Ping, S. Plura, S. Pogodin, V. Prasad, F. Z. Qi, H. R. Qi, M. Qi, T. Y. Qi, S. Qian, W. B. Qian, C. F. Qiao, J. J. Qin, L. Q. Qin, X. P. Qin, X. S. Qin, J. F. Qiu, S. Q. Qu, C. F. Redmer, K. J. Ren, A. Rivetti, V. Rodin, M. Rolo, G. Rong, Ch. Rosner, S. N. Ruan, N. Salone, A. Sarantsev, Y. Schelhaas, K. Schoenning, M. Scodeggio, K. Y. Shan, X. Y. Shan, J. F. Shangguan, L. G. Shao, M. Shao, C. P. Shen, H. F. Shen, W. H. Shen, X. Y. Shen, B. A. Shi, H. Shi, Jiulin Shi, J. Y. Shi, Q. Q. Shi, R. S. Shi, X. Shi, J. J. Song, T. Z. Song, W. M. Song, Yang Song, Y. X. Song, S. Sosio, S. Spataro, F. Stieler, Y. J. Su, G. B. Sun, G. X. Sun, H. K. Sun, J. F. Sun, Kuan Sun, L. Sun, S. Sun, T. Sun, W. Y. Sun, Y. Sun, Y. J. Sun, Y. Z. Sun, Z. T. Sun, Y. X. Tan, C. J. Tang, G. Y. Tang, J. Tang, Y. A. Tang, L. Y. Tao, Q. T. Tao, M. Tat, J. X. Teng, V. Thoren, W. H. Tian, Y. Tian, Z. F. Tian, I. Uman, Bo Wang, B.L. Wang, C.W. Wang, D. Y. Wang, F. Wang, Huijuan Wang, Huan Wang, K. Wang, L.L. Wang, Meng Wang, S. Wang, T. Wang, T.J. Wang, W. Wang, W.H. Wang, W.P. Wang, X. Wang, X.F. Wang, X.J. Wang, X.L. Wang, Y. Wang, Y.D. Wang, Yujue Wang, Y.H. Wang, Y.N. Wang, Y.Q. Wang, Yaqian Wang, Yi Wang, Z. Wang, Z.L. Wang, Z.Y. Wang, Ziyi Wang, D. H. Wei, F. Weidner, S. P. Wen, Christoph Wenzel, U. Wiedner, G. Wilkinson, M. Wolke, L. Wollenberg, C. Wu, J. F. Wu, L. H. Wu, L. J. Wu, X. Wu, Y. Wu, Yue Wu, Z. Wu, L. Xia, X. M. Xian, T. Xiang, D. Xiao, G. Y. Xiao, H. Xiao, S. Y. Xiao, Y. L. Xiao, Z. J. Xiao, Changsheng Xie, X. H. Xie, Keping Xie, Y. G. Xie, Y. H. Xie, Z. P. Xie, T. Y. Xing, C. F. Xu, C. J. Xu, G. F. Xu, H. Y. Xu, Q. Xu, W. L. Xu, X. P. Xu, Y. C. Xu, Z. P. Xu, F. Yan, L. Yan, W. B. Yan, W. C. Yan, Xiao‐Xue Yan, H. J. Yang, H. L. Yang, H. X. Yang, Tao Yang, Y. Yang, Y. F. Yang, Yifan Yang, Zhangwei Yang, Meng Ye, M.H. Ye, J. H. Yin, Z. Y. You, B. X. Yu, C. X. Yu, G. Yu, T. Yu, X. D. Yu, C. Z. Yuan, L. Yuan, S. C. Yuan, X. Q. Yuan, Y. Yuan, Z. Y. Yuan, C. X. Yue, A. A. Zafar, F. R. Zeng, X. Zeng, Y. Zeng, Yi Zeng, X. Y. Zhai, Y. H. Zhan, Aonan Zhang, B.L. Zhang, B.X. Zhang, D.H. Zhang, G.Y. Zhang, H. Zhang, H. H. Zhang, H.Q. Zhang, H.Y. Zhang, J.J. Zhang, J.L. Zhang, J.Q. Zhang, J. W. Zhang, Jiabao Zhang, J.Y. Zhang, J.Z. Zhang, Jiawei Zhang, L.M. Zhang, L.Q. Zhang, Lei Zhang, P. Zhang, Q.Y. Zhang, Shuihan Zhang, Shulei Zhang, X.D. Zhang, X.M. Zhang, X.Y. Zhang, Y. Zhang, Y.T. Zhang, Y.H. Zhang, Yan Zhang, Yao Zhang, Zicheng Zhang, Z.L. Zhang, Z. Y. Zhang, Gang Zhao, J. Zhao, J. Y. Zhao, J. Z. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, Q. Zhao, Y. B. Zhao, Y. X. Zhao, Z. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, W. J. Zheng, Y. Zheng, B. Zhong, X. Zhong, H. Zhou, L. P. Zhou, Xiaoyu Zhou, X. R. Zhou, X. Y. Zhou, Y.Z. Zhou, J. Zhu, K. J. Zhu, L. Zhu, S. H. Zhu, S. Q. Zhu, T. J. Zhu, W. J. Zhu, Y. C. Zhu, Z. A. Zhu, J. H. Zou, J. Zu
Bibliographic record
VenuePhysics Letters B · 2023
Typearticle
Languagelv
FieldPhysics and Astronomy
TopicParticle physics theoretical and experimental studies
Canadian institutionsInstitute of Particle Physics
FundersFundamental Research Funds for the Central UniversitiesInstitute of High Energy PhysicsHorizon 2020European Research CouncilEuropean CommissionInstituto Nazionale di Fisica NucleareThailand Science Research and InnovationShanghai Key Laboratory for Particle Physics and CosmologyChinese Academy of SciencesCAS Center for Excellence in Particle PhysicsU.S. Department of EnergyNational Natural Science Foundation of ChinaVetenskapsrådetNational Key Research and Development Program of ChinaSuranaree University of TechnologyNarodowe Centrum NaukiNational Research Foundation of KoreaIstituto Nazionale di Fisica NucleareDeutsche ForschungsgemeinschaftStrongNational Research FoundationUK Research and InnovationUniversity of Chinese Academy of SciencesRoyal SocietyInstitute of Nuclear and Particle Physics, Shanghai Jiao Tong UniversityKey Project of Frontier Science Research of Chinese Academy of SciencesLanzhou University
KeywordsPhysicsParity (physics)MesonHelicityParticle physicsElectron–positron annihilationAmplitudeNuclear physicsQuantum mechanicsHadron
Abstract
The spin and parity of the charmed mesons Ds⁎+, D⁎0 and D⁎+ are determined for the first time to be JP=1− with significances greater than 10σ over other hypotheses of 2+ and 3−, using an e+e− collision data sample with an integrated luminosity of 3.19 fb−1 collected by the BESIII detector at a center-of-mass energy of 4.178 GeV. Different spin-parity hypotheses are tested via a helicity amplitude analysis of the processes e+e−→Ds⁎+Ds−, D⁎0D0 and D⁎+D−, with Ds⁎+→Ds+γ, D⁎0→D0π0, and D⁎+→D+π0. The results confirm the quark model predictions.
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)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.010
Threshold uncertainty score0.034
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.010 | 0.002 |
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 head0.018
GPT teacher head0.251
Teacher spread0.233 · 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 designTheoretical or conceptual
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
Citations3
Published2023
Admission routes1
Has abstractyes