Search for the lepton flavor violating decay J/ψ → eμ

Collaboration, BESIII; Ablikim, M.; Ачасов, М. Н.; Adlarson, P.; Albrecht, M.; Aliberti, R.; Amoroso, A.; An, M. R.; An, Q.; Bai, X. H.; Bai, Y.; Bakina, O.; Ferroli, R. Baldini; Balossino, I.; Ban, Y.; Batozskaya, V.; Becker, D.; Begzsuren, K.; Berger, N.; Bertani, M.; Bettoni, D.; Bianchi, F.; Bloms, J.; Bortone, A.; Boyko, I. R.; Briere, R. A.; Brueggemann, A.; Cai, H.; Cai, X.; Calcaterra, A.; Cao, G. F.; Cao, N.; Çetin, S. A.; Chang, J. F.; Chang, W. L.; Chelkov, G. A.; Chen, 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, Z. J.; Cheng, W. S.; Chu, X. K.; Cibinetto, G.; Cossio, F.; Cui, J. J.; Dai, H. L.; Dai, J. P.; Dbeyssi, A.; Boer, R. E. de; Dedovich, D. V.; Deng, Z. Y.; Denig, A.; Denysenko, I.; Destefanis, M.; Mori, F. De; Ding, Y.; Dong, J.; Dong, L. Y.; Dong, M. Y.; Dong, X.; Du, S. X.; Egorov, P.; Fan, Y. L.; Fang, J.; Fang, S. S.; Fang, W.; Fang, Y.; Farinelli, R.; Fava, L.; Feldbauer, F.; Felici, G.; Feng, C. Q.; Feng, J. H.; Fischer, K. M.; Fritsch, M.; Fritzsch, C.; Fu, C. D.; Gao, He; Gao, Yang; Garbolino, S.; Garzia, I.; Ge, P.; Ge, Z. W.; Geng, C.; Gersabeck, E.; Gilman, A.; Goetzen, K.; Gong, L.; Gong, W. X.; Gradl, W.; Greco, M.; Gu, L. M.; Gu, M. H.; Gu, Y. T.; Guan, C. Y.; Guo, A. Q.; Guo, L. B.; Guo, R. P.; Guo, Y. P.; Guskov, A.; Han, Tao; Han, W. Y.; Hao, X. Q.; Harris, F. A.; He, K. K.; He, K. L.; Heinsius, F. H.; Heinz, C.; Heng, Y. K.; Herold, C.; Himmelreich, M.; Hou, G. Y.; Hou, Y. R.; Hou, Z. L.; Hu, H. M.; Hu, J. F.; Hu, T.; Hu, Y.; Huang, G. S.; Huang, K. X.; Huang, L. Q.; Huang, X. T.; Huang, Y.; Huang, Z.; Hussain, T.; Hüsken, N.; Imoehl, W.; Irshad, M.; Jackson, J.; Jaeger, S.; Janchiv, S.; Ji, Q. P.; Ji, X. B.; Ji, X. L.; Ji, Y. Y.; Jia, Z. K.; Jiang, H. B.; Jiang, S. S.; Jiang, X. S.; Jiang, Y.; Jiao, J. B.; Jiao, Z.; Jin, S.; Jin, Y.; Jing, M. Q.; Johansson, T.; Kalantar‐Nayestanaki, N.; Kang, X. S.; Kappert, R.; Kavatsyuk, M.; Ke, B. C.; Keshk, I. K.; Khoukaz, A.; Kiese, P.; Kiuchi, R.; Kliemt, R.; Koch, L.; Kolcu, O. B.; Kopf, B.; Kuemmel, M.; Kuessner, M.; Kupść, A.; Kühn, W.; Lane, J. J.; Lange, J. S.; Larin, P.; Lavania, A.; Lavezzi, L.; Lei, Z. H.; Leithoff, H.; Lellmann, M.; Lenz, T.; Li, C.; Li, C.; Li, C. H.; Li, Cheng; Li, D. M.; Li, F.; Li, G.; Li, H.; Li, H.; Li, H. B.; Li, H. J.; Li, H. N.; Li, J. Q.; Li, J. S.; Li, J. W.; Li, Ké; Li, L. J; Li, L. K.; Li, Lei; Li, M. H.; Li, P. R.; Li, S. X.; Li, S. Y.; Li, T.; Li, W. D.; Li, W. G.; Li, X. H.; Li, X. L.; Li, Xiaoyü; Li, Z. Y.; Liang, H.; Liang, Y. F.; Liang, Y. T.; Liao, G. R.; Liao, L. Z.; Libby, J.; Limphirat, A.; Lin, C. X.; Lin, D. X.; Lin, Tao; Liu, B. J.; 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, J. L.; Liu, J. Y.; Liu, K.; Liu, K. Y.; Liu, Ke; Liu, L.; Liu, Lu; Liu, M. H.; Liu, P. L.; Liu, Q.; Liu, S. B.; Liu, T.; Liu, W. K.; Liu, W. M.; Liu, X.; Liu, Y.; Liu, Y. B.; Liu, Z. A.; Liu, Z. Q.; Lou, X.; Lu, F. X.; Lü, H. J.; Lu, J. G.; Lu, X. L.; Lu, Y. P.; Lu, Z. H.; Luo, C. L.; Luo, M. X.; Luo, T.; Luo, X. L.; Lyu, X. R.; Lyu, Y. F.; Ma, F.C.; Ma, Hailong; L., L.; Ma, M. M.; Ma, Qiumei; Ma, R.; Ma, Ruiting; Ma, Xiaoyan; Ma, Y.; Maas, F. E.; Maggiora, M.; Maldaner, S.; Malde, S.; Malik, Q. A.; Mangoni, A.; Mao, Y. J.; Mao, Z. P.; Marcello, S.; Meng, Z.; Messchendorp, J. G.; Mezzadri, G.; Miao, H.; Min, T. J.; Mitchell, R. E.; Mo, X. H.; Muchnoi, N. Yu.; Nefedov, Y.; Nerling, F.; Nikolaev, I. B.; Ning, Z.; Nisar, S.; Niu, Y.; Olsen, S. L.; Ouyang, Q.; Pacetti, S.; Pan, X.; Pan, Y.; Pathak, A.; Pelizaeus, M.; Peng, H.; Peters, K.; Ping, J. L.; Ping, R. G.; Plura, S.; Pogodin, S.; Prasad, V.; Qi, F. Z.; Qi, H. R.; Qi, M.; Qi, T. Y.; Qian, S.; Qian, W.; Qian, Z.; Qiao, C. F.; Qin, J.; Liu, Qin; Qin, X. P.; Qin, X. S.; Qin, Z. H.; Qiu, J. F.; Qu, S. Q.; Rashid, K. H.; Redmer, C. F.; Ren, K. J.; Rivetti, A.; Rodin, V.; Rolo, M.; Rong, G.; Rosner, Ch.; Ruan, S. N.; Sang, H. S.; Sarantsev, A.; Schelhaas, Y.; Schnier, C.; Schoenning, K.; Scodeggio, M.; Shan, K. Y.; Shan, W.; Shan, X. Y.; Shangguan, J. F.; Shao, L. G.; Shao, M.; Shen, C. P.; Shen, H. F.; Shen, X. Y.; Shi, B. A.; Shi, H. C.; Shi, J. Y.; Shi, Q. Q.; Shi, R. S.; Shi, X.; Song, J. J.; Song, W. M.; Song, Y. X.; Sosio, S.; Spataro, S.; Stieler, F.; Su, K. X.; Su, P. P.; Su, Y. J.; Sun, G. X.; Sun, H. K.; Sun, J. F.; Sun, L.; Sun, S. S.; Sun, T.; Sun, W. Y.; Sun, X. H.; Sun, Y. J.; Sun, Y. Z.; Sun, Z. T.; Tan, Y. H.; Tan, Y. X.; Tang, C. J.; Tang, G. Y.; Tang, J.; Tao, L. Y; Tao, Q. T.; Tat, Martin Duy; Teng, J. X.; Thoren, V.; Tian, W. H.; Tian, Y.; Uman, I.; Wang, B.; Wang, B. L.; Wang, C. W.; Wang, D. Y.; Wang, F.; Wang, H. J.; Wang, H. P.; Wang, K.; Wang, L. L.; Wang, M.; Wang, M. Z.; Wang, Meng; Wang, S.; Wang, T.; Wang, T. J.; Wang, W.; Wang, W. H.; Wang, W. P.; Wang, X.; Wang, X. F.; Wang, X. L.; Wang, Y.; Wang, Y. D.; Wang, Y. F.; Wang, Y. H.; Wang, Y. Q.; Wang, Yaqian; Wang, Z.; Wang, Z. Y.; Wang, Ziyi; Wei, D. H.; Weidner, F.; Wen, S. P.; White, D. J.; Wiedner, U.; Wilkinson, G.; Wolke, M.; Wollenberg, L.; Wu, Jinfei; Wu, L. H.; Wu, L. J.; Wu, X.; Wu, Y.; Wang, Zhi; Xia, L.; Xiang, T.; Xiao, D.; Xiao, G. Y.; Xiao, H.; Xiao, S. Y.; Xiao, Y. L.; Xiao, Z. J.; Xie, Changsheng; Xie, X. H.; Xie, Y.; Xie, Y.; Xie, Z. P.; Xing, T. Y.; Xu, Chun; Xu, C.; Xu, G. F.; Xu, H. Y.; Xu, Q. J.; Xu, X. P.; Xu, Y. C.; Xu, Z. P.; Yan, F.; Yan, L.; Yan, W. B.; Yan, W. C.; Yang, H. J.; Yang, H. L.; Yang, H. X.; Yang, L.; Yang, S. L.; Yang, Tao; Yang, Yifan; Yang, Yifan; Ye, M.; Ye, M. H.; Yin, J. H.; Zhou, You; Yu, B. X.; Yu, C. X.; Yu, G.; Yu, T.; Yuan, C. Z.; Li, Yuan; Yuan, S.; Yuan, X. Q.; Yuan, Y.; Yuan, Z. Y.; Yue, C. X.; Zafar, A. A.; Zeng, F. R.; Zeng, X.; Zeng, Y.; Zhan, Y. H.; Zhang, A. Q.; Zhang, B. L.; Zhang, B. X.; Zhang, D. H.; Zhang, G. Y.; Zhang, H.; Zhang, H. H.; Zhang, H. H.; Zhang, H. Y.; Zhang, J. L.; Zhang, J. Q.; Zhang, J. W.; Zhang, J. X.; Zhang, J. Y.; Zhang, J. Z.; Zhang, Jianyu; 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, Z. H.; Zhang, Z. Y.; Zhao, Gang; Zhao, J.; Zhao, J.; Liu, Zhao; Zhao, Ling; Zhao, M. G.; Zhao, Q.; Zhao, S. J.; Zhao, Y. B.; Zhao, Y. X.; Zhao, Z.; Zhemchugov, A.; Zheng, B.; Zheng, J. P.; Zheng, Y.; Zhong, B.; Chen, Zhong; Zhong, X.; Zhou, H.; Li, Zhou; Zhou, X. K.; Zhou, X. R.; Zhou, Xiang; Zhou, Y. Z.; Zhu, Jing; Zhu, K. J.; Zhu, L. X.; Zhu, S. H.; Zhu, S. Q.; Zhu, T. J.; Zhu, W. J.; Zhu, Y.; Zhu, Z. A.; Zou, B. S.; Zou, J. H.

doi:10.1007/s11433-022-1995-0

Cited by 7 publications

(4 citation statements)

References 53 publications

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“…Besides the dipole, vector, and tensor operators, the RLFV decays could receive contributions through the axial, scalar, and pseudoscalar operators, which are not accessible in the Feynman diagrams of , e.g., the Higgs mediated self-energies and penguin diagrams. If only considering the contribution from the scalar operat- ors [22], the indirect upper limits on BR could be approximately two to three orders of magnitude smaller than the current result from the Belle collaboration [27]. It might be possible that the RLFV processes…”

Section: Discussionmentioning

confidence: 66%

Lepton flavor violating decays of vector mesons in the MRSSM*

et al. 2023

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In this work, we analyze the rare decays of the neutral vector mesons $J/\psi$ and $\Upsilon(nS)$ in the scenario of the minimal R-symmetric supersymmetric standard model by means of the effective Lagrangian method. The predicted branching ratios are dominated by the mass insertion parameters $\delta^{ij}$, i.e., the off-diagonal inputs, and the contributions from different parts are comparable. Taking account of the constraints on the mass insertion parameters by the experiments, the predicted branching ratios for the most promising processes $\Upsilon(nS)\rightarrow l\tau$ are ten orders of magnitude smaller than the present experimental bounds.Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

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Section: Discussionmentioning

confidence: 66%

Lepton flavor violating decays of vector mesons in the MRSSM*

et al. 2023

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“…Inclusive MC events are used to study the backgrounds from 𝐽/𝜓 decays and the signal process are simulated with PHOTOS and the VLL decay model in EVTGEN [16]. A semi-blind analysis method with 10% of the full 𝐽/𝜓 data randomly selected is used to avoid involuntary bias during the analyses [17,18].…”

Section: Clfv Results From Besiiimentioning

confidence: 99%

Search for charged lepton flavor violation in J/ψ decays at BESIII

Li,

You

2023

J. Inst.

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The observation of any charged lepton flavor violation (CLFV) process would be a clear signal of new physics beyond the Standard Model. Various decay modes, including lepton (μ, τ) decays, pseudoscalar meson (K,π) decays, vector meson (ϕ, J/ψ, Υ) decays, and Higgs decays, have been explored to detect CLFV. Focusing on the search for CLFV at the τ-charm region, the results of the search for J/ψ → eτ/eμ using the 10 billion J/ψ events collected by the BESIII experiment are presented. The upper limits (ULs) at the 90% confidence level are ℬ(J/ψ → e ± τ ∓) < 7.5 × 10-8 and ℬ(J/ψ → e ± μ ∓) < 4.5 × 10-9, respectively. Improving the previously published limits by two orders of magnitudes, the results are the most stringent CLFV searches in heavy quarkonium system.

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“…B factories, and high energy colliders such as LEP and LHC, targeting at the CLFV decays of meson [11][12][13][14], µ, τ , Z [15][16][17] and Higgs boson [18][19][20].…”

Section: Jhep03(2023)190mentioning

confidence: 99%

A comparative study of Z′ mediated charged lepton flavor violation at future lepton colliders

Wang

Cai

et al. 2023

J. High Energ. Phys.

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Charged lepton flavor violation (CLFV) represents a transition between charged leptons of different generations that violates lepton flavor conservation, which is a clear signature of possible new physics beyond the standard model. By exploiting a typical example model of extra Z′ gauge boson, we perform a detailed comparative study on CLFV searches at several future lepton colliders, including a 240 GeV electron-positron collider and a TeV scale muon collider. Based on detailed signal and background Monte-Carlo studies with fast detector simulations, we derive the potentials in searching for Z′ mediated CLFV couplings with eμ, eτ and μτ of different future colliders. The results are compared with the current and prospect limits set by either low-energy experiments or the high-energy LHC experiments. The sensitivity of the τ related CLFV coupling strength at future lepton colliders will be significantly improved in comparison to the current best constraints and the prospect constraints for the μτ channel.

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Search for the lepton flavor violating decay J/ψ → eμ

Cited by 7 publications

References 53 publications

Lepton flavor violating decays of vector mesons in the MRSSM*

Lepton flavor violating decays of vector mesons in the MRSSM*

Search for charged lepton flavor violation in J/ψ decays at BESIII

A comparative study of Z′ mediated charged lepton flavor violation at future lepton colliders

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