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Measurement of the phase between strong and electromagnetic amplitudes in the decay J/ψ → ϕη
M. Ablikim, М. Н. Ачасов, P. Adlarson, O. Afedulidis, X. Ai, R. Aliberti, A. Amoroso, Y. Bai, O. Bakina, I. Balossino, Y. Ban, H. Bao, V. Batozskaya, K. Begzsuren, N. Berger, M. Berlowski, M. Bertani, D. Bettoni, F. Bianchi, Elena Del Bianco, A. Bortone, I. Boyko, R. A. Briere, A. Brueggemann, Hao Cai, X. Cai, A. Calcaterra, G. F. Cao, N. Cao, S. A. Çetin, X. Chai, J. F. Chang, G. R., Yuzhi Che, G. Chelkov, C. Chen, C. H. Chen, G. Chen, H. S. Chen, H. Y. Chen, M. L. Chen, S. J. Chen, S. L. Chen, Shaomin Chen, T. Chen, Xurong Chen, X. T. Chen, Yuanbo Chen, Y. Q. Chen, Zhuojun Chen, Zhengyuan Chen, S.-K. Choi, G. Cibinetto, F. Cossio, J. J. Cui, H. L. Dai, J. P. Dai, A. Dbeyssi, R. E. de Boer, Dmitri Dedovich, C. Q. Deng, Z. Y. Deng, A. G. Denig, I. Denisenko, M. Destefanis, F. De Mori, B. Ding, X. X. Ding, J. Dong, L. Y. Dong, M. Y. Dong, X. Dong, M. C. Du, Yunyou Duan, Z. H. Duan, P. Egorov, Y. H. Fan, J. Fang, J. Fang, S. S. Fang, Wenxing Fang, Y. Fang, Yong Fang, R. Farinelli, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, J. H. Feng, Y. T. Feng, M. Fritsch, C. D. Fu, J. Fu, Y. W. Fu, H. Gao, X. B. Gao, Y. Gao, S. Garbolino, I. Garzia, Lin Ge, P. T. Ge, Z. W. Ge, C. Geng, E. Gersabeck, A. Gilman, K. Götzen, Lu Gong, W. X. Gong, W. Gradl, S. Gramigna, M. Greco, M. H. Gu, Y. T. Gu, C. Y. Guan, A. Q. Guo, L. B. Guo, Ming Guo, R. P. Guo, Y. P. Guo, A. Guskov, J. Gutierrez, K. Han, T. T. Han, F. Hanisch, 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, X. T. Hou, Y. R. Hou, Z. L. Hou, B. Y. Hu, H. Hu, J. F. Hu, Q. Hu, S. L. Hu, T. Hu, Y. Hu, G. S. Huang, K. X. Huang, L. Q. Huang, X. T. Huang, Yanping Huang, Y. S. Huang, T. Hussain, F. Hölzken, N. Huesken, N. in der Wiesche, J. Jackson, S. Janchiv, J. H. Jeong, Quan Ji, Q. P. Ji, W. Ji, X. B. Ji, X. L. Ji, Y. Y. Ji, X. Q. Jia, Z. Jiao, Danli Jiang, H. B. Jiang, P. C. Jiang, S. S. Jiang, T. J. Jiang, X. S. Jiang, Y. Jiang, J. B. Jiao, J. K. Jiao, Z. Jiao, S. Jin, Y. Jin, M. Q. Jing, X. M. Jing, T. Johansson, S. Kabana, N. Kalantar‐Nayestanaki, X. L. Kang, X. S. Kang, M. Kavatsyuk, B. C. Ke, V. Khachatryan, A. Khoukaz, R. Kiuchi, O. B. Kolcu, B. Kopf, M. Kuessner, X. Kui, Navneet Kumar, A. Kupść, W. Kühn, L. Lavezzi, T. T. Lei, Z. H. Lei, M. Lellmann, T. Lenz, C. Li, C. Li, C. Li, Cheng Li, D. M. Li, Li Fei, Gang Li, Hai-Bo Li, H. J. Li, H. Li, Hui Li, J. R. Li, Jingshu Li, K. Li, K. L. Li, L. J. Li, L. K. Li, Lei Li, M. H. Li, P. R. Li, Q. M. Li, Q. X. Li, R. Li, S. X. Li, Teng Li, W. D. Li, Weiguo Li, X. Li, X. H. Li, X. L. Li, X. Y. Li, X. Z. Li, Y. G. Li, Z. J. Li, Z. Y. Li, C. Liang, H. Liang, H. Liang, Y. F. Liang, Y. F. Liang, G. R. Liao, Y. P. Liao, J. Libby, A. Limphirat, C. C. Lin, C. X. Lin, D. X. Lin, T. Lin, B. Liu, B. X. Liu, C. Liu, C. X. Liu, Fang Liu, F. H. Liu, Feng Liu, G. Liu, Hao Liu, H. Liu, H. Liu, H. M. Liu, Huihui Liu, Jianbei Liu, Jingyi Liu, K. Liu, K. Y. Liu, K. Liu, L. Liu, L. C. Liu, Lu Liu, M. H. Liu, P. Liu, Qian Liu, Shubin Liu, T. Liu, W. K. Liu, W. M. Liu, Xiang Liu, X. Liu, Y. Liu, Zhenan Liu, Z. D. Liu, Zhiqing Liu, X. C. Lou, F. X. Lu, H. J. Lu, J. G. Lu, X. L. Lu, Y. Lu, Y. Lu, Z. H. Lu, C. L. Luo, J. R. Luo, M. X. Luo, T. Luo, X. L. Luo, X. R. Lyu, Y. F. Lyu, F. C., H. Ma, H. L., J. L., L.L. Ma, L. R., M. M., R. Q., T. Ma, X. T., X. Y. Ma, Y. Ma, F. E. Maas, I. Mackay, M. Maggiora, S. Malde, Y. J. Mao, S. Marcello, Z. X. Meng, J. G. Messchendorp, G. Mezzadri, H. Miao, T. J. Min, R. E. Mitchell, X. H. Mo, B. Moses, N. Yu. Muchnoi, J. Muskalla, Y. Nefedov, F. Nerling, L. S. Nie, I. B. Nikolaev, Zhe Ning, S. Nisar, Q. L. Niu, W. D. Niu, Y. Niu, S. L. Olsen, Q. Ouyang, S. Pacetti, X. Pan, Y. Pan, A. Pathak, Y. P. Pei, M. Pelizaeus, H. Peng, Yiyan Peng, K. Peters, Jialun Ping, R. G. Ping, V. Prasad, F. Z. Qi, H. Qi, H. R. Qi, Ming Qi, T. Y. Qi, S. Qian, W. B. Qian, Cong‐Feng Qiao, X. K. 晓珂 Qiao 乔, J. J. Qin, L. Q. Qin, Lu Qin, X. P. Qin, Xiaoshuai Qin, Zhonghua Qin, Z. H. Qu, C. F. Redmer, K. J. Ren, Angelo Rivetti, M. Rolo, G. Rong, Ch. Rosner, M. Q. Ruan, S. N. Ruan, N. Salone, A. Sarantsev, Y. Schelhaas, K. Schoenning, M. Scodeggio, K. Y. Shan, W. Shan, X. Y. Shan, Z. J. Shang, 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, J. L. Shi, Jingyan Shi, Q. Q. Shi, S. Y. Shi, X. Shi, J. J. Song, T. Z. Song, Y. X. Song, S. Sosio, S. Spataro, F. Stieler, Shei Sia Su, Y. J. Su, G. B. Sun, G. X. Sun, H. Sun, Hao-Kai Sun, J. F. Sun, K. Sun, L. Sun, S. S. Sun, T. Sun, W. Y. Sun, Y. Sun, Y. Sun, Y. Z. Sun, Z. Q. Sun, Z. T. Sun, C. J. Tang, G. Y. Tang, J. Tang, Ming Tang, Yong Tang, L. Y. Tao, Q. T. Tao, M. Tat, J. X. Teng, V. Thoren, W. H. Tian, Y. Tian, Z. F. Tian, I. Uman, Y. Wan, S. J. Wang, B. Wang, B. L. Wang, Bo Wang, D. Wang, F. Wang, A. Washbrook, J. Wang, J. P. Wang, K. Wang, Liangliang Wang, Meng Wang, N. W. Wang, S. Wang, S. Wang, Ting Wang, T. J. Wang, Wei Wang, Wei Wang, W. P. Wang, X. Wang, X. F. Wang, X. J. Wang, X. L. Wang, X. N. Wang, Yaqian Wang, Y. D. Wang, Y. F. Wang, Yinghao Wang, Y. Wang, Y. N. Wang, Y. Q. Wang, Yi Wang, Z. Wang, Z. L. Wang, Z. Y. Wang, Ziyi Wang, D. H. Wei, F. Weidner, S. P. Wen, Y. R. Wen, U. Wiedner, G. Wilkinson, Magnus Wolke, L. Wollenberg, Chunhua Wu, J. F. Wu, L. H. Wu, L. J. Wu, X. Wu, X. H. Wu, Y. Wu, Y. H. Wu, Y. J. Wu, L. Xia, X. M. Xian, B. H. Xiang, Teng Xiang, D. Xiao, G. Y. Xiao, Suyu Xiao, Y. L. Xiao, Zhen-Jun Xiao, C. Xie, X. H. Xie, Y. G. Xie, Y. G. Xie, Y. Xie, Z. P. Xie, Tianyu Xing, C. F. Xu, Chuangjie Xu, G. F. Xu, H. Y. Xu, M. Xu, Qingjun Xu, Q. N. Xu, W. Xu, W. L. Xu, X. P. Xu, Y. C. Xu, Z. S. Xu, F. Yan, L. Yan, W. B. Yan, W. C. Yan, X. Q. Yan, H. J. Yang, H. L. Yang, H. X. Yang, J. H. Yang, Tao Yang, P. Yepes, Y. F. Yang, Y. X. Yang, Z. W. Yang, Z. P. Yao, M. Ye, M. H. Ye, J. H. Yin, J. H. Yin, Z. You, B. Yu, Chunxu Yu, G. Yu, J. Yu, M. C. Yu, Tao Yu, Xudong Yu, C. Z. Yuan, J. Yuan, J. Yuan, L. Yuan, S. C. Yuan, Y. Yuan, Z. Y. Yuan, C. X. Yue, A. A. Zafar, Fanrui Zeng, S. H. Zeng, X. Zeng, Y. J. Zeng, Yujie Zeng, Y. J. Zeng, X. Y. Zhai, Yuncong Zhai, Y. H. Zhan, A. Q. Zhang, B. L. Zhang, B. X. Zhang, D. H. Zhang, G. Y. Zhang, Hangchang Zhang, Huaqiao Zhang, H. R. Zhang, Hongyu Zhang, Jin Zhang, Jin Zhang, J. J. Zhang, Jielei Zhang, Jingqing Zhang, J. S. Zhang, Jiawen Zhang, J. X. Zhang, J. Y. Zhang, J. Z. Zhang, Jianyu Zhang, L. Zhang, Lei Zhang, P. Zhang, Q. Y. Zhang, R. Y. Zhang, Shuihan Zhang, Shulei Zhang, X. M. Zhang, Y. Zhang, Y. T. Zhang, Yinhong Zhang, Y. M. Zhang, Y. Zhang, Zhengde Zhang, Z. H. Zhang, Z. L. Zhang, Guang Zhao, J. Y. Zhao, J. Zhao, Ling Zhao, Lei Zhao, M. G. Zhao, N. Zhao, R. P. Zhao, Shujun Zhao, Yubin Zhao, Y. X. Zhao, Z. Zhao, A. Zhemchugov, B. Zheng, B. M. Zheng, J. P. Zheng, W. J. Zheng, Y. Zheng, B. Zhong, X. Zhong, H. Zhou, J. Y. Zhou, L. P. Zhou, S. Zhou, Xiang Zhou, X. Zhou, X. R. Zhou, X. Y. Zhou, Y. Z. Zhou, Z. C. Zhou, A. N. Zhu, J. Zhu, K. J. Zhu, Kejun Zhu, K. Zhu, L. Zhu, L. Z. Zhu, S. H. Zhu, T. J. Zhu, W. D. Zhu, Y. C. Zhu, Zian Zhu, J. H. Zou, J. Zu
Bibliographic record
VenueJournal of High Energy Physics · 2025
Typearticle
Languageen
FieldPhysics and Astronomy
TopicQuantum Chromodynamics and Particle Interactions
Canadian institutionsInstitute of Particle Physics
FundersShanghai Key Laboratory for Particle Physics and CosmologyCAS Center for Excellence in Particle PhysicsVetenskapsrådetNarodowe Centrum NaukiNational Natural Science Foundation of ChinaChinese Academy of SciencesIstituto Nazionale di Fisica NucleareDeutsche ForschungsgemeinschaftSwedish Foundation for International Cooperation in Research and Higher EducationKnut och Alice Wallenbergs StiftelseNational Key Research and Development Program of ChinaNational Research FoundationStrongNational Research Foundation of KoreaInstitute of High Energy PhysicsU.S. Department of Energy
KeywordsAmplitudeAnnihilationPhase (matter)LuminosityRelative phaseDetectorInterference (communication)
Abstract
A bstract The first direct measurement of the relative phase between the strong and electromagnetic amplitudes for a J/ψ decaying into a vector-pseudoscalar final state is performed using 26 energy points of e + e − annihilation data between 3 . 00 GeV and 3.12 GeV. The data sets were collected by the BESIII detector with a total integrated luminosity of 452 pb − 1 . By investigating the interference pattern in the cross section lineshape of e + e − → ϕη , the relative phase between the strong and electromagnetic amplitudes of J/ψ decay is determined to be within [133 °, 228 ° ] at 68% confidence level.
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 distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.176
Threshold uncertainty score0.189
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 head0.015
GPT teacher head0.277
Teacher spread0.262 · 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 teacher head, 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".
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Citations1
Published2025
Admission routes1
Has abstractyes