Observation of Resonance Structures in e + e − → π + π − ψ 2 ( 3823 ) and Mass Measurement of ψ 2 ( 3823 )

Ablikim, M.; Achasov, M. N.; Adlarson, P.; Albrecht, M.; Aliberti, R.; Amoroso, A.; An, M. R.; An, Q.; Bai, X. H.; Bai, Y.; Bakina, O.; Baldini Ferroli, R.; Balossino, I.; Ban, Y.; Batozskaya, V.; Becker, D.; Begzsuren, K.; Berger, N.; Bertani, M.; Bettoni, D.; Bianchi, F.; Bloms, J.; Bortone, A.; Boyko, I.; Briere, R. A.; Brueggemann, A.; Cai, H.; Cai, X.; Calcaterra, A.; Cao, G. F.; Cao, N.; Cetin, S. A.; Chang, J. F.; Chang, W. L.; Chelkov, G.; Chen, C.; Chen, G.; Chen, H. S.; Chen, M. L.; Chen, S. J.; Chen, T.; Chen, X. R.; Chen, X. T.; Chen, Y. B.; Chen, Z. J.; Cheng, W. S.; Cibinetto, G.; Cossio, F.; Cui, J. J.; Dai, H. L.; Dai, J. P.; Dbeyssi, A.; de Boer, R. E.; Dedovich, D.; Deng, Z. Y.; Denig, A.; Denysenko, I.; Destefanis, M.; De Mori, F.; 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, Y.; Farinelli, R.; Fava, L.; Feldbauer, F.; Felici, G.; Feng, C. Q.; Feng, J. H.; Fischer, K.; Fritsch, M.; Fu, C. D.; Gao, H.; Gao, Y. N.; Gao, Yang; Garbolino, S.; Garzia, I.; Ge, P. T.; Ge, Z. W.; Geng, C.; Gersabeck, E. M.; 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, T. T.; Han, W. Y.; Hao, X. Q.; Harris, F. A.; He, K. K.; He, K. L.; Heinsius, F. H.; Heinz, C. H.; Heng, Y. K.; Herold, C.; Himmelreich, M.; Holtmann, T.; 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, L. Q.; Huang, X. T.; Huang, Y. P.; Huang, Z.; Hussain, T.; Hüsken, N.; Imoehl, W.; Irshad, M.; Jackson, J.; Jaeger, S.; Janchiv, S.; Ji, Q.; 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.; Kupsc, 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, Ke; 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, Xiaoyu; Li, Z. Y.; Liang, H.; Liang, H.; 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, T.; Liu, B. J.; Liu, C. X.; Liu, D.; Liu, F. H.; Liu, Fang; Liu, Feng; Liu, G. M.; 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. C.; Lu, F. X.; Lu, H. J.; Lu, J. G.; Lu, X. L.; Lu, Y.; 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, H. L.; Ma, L. L.; Ma, M. M.; Ma, Q. M.; Ma, R. Q.; Ma, R. T.; Ma, X. Y.; 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. X.; Messchendorp, J. G.; Mezzadri, G.; Miao, H.; Min, T. J.; Mitchell, R. E.; Mo, X. H.; Muchnoi, N. Yu.; Muramatsu, H.; Nakhoul, S.; 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. P.; Peters, K.; Ping, J. L.; Ping, R. G.; Plura, S.; Pogodin, S.; Poling, R.; Prasad, V.; Qi, H.; Qi, H. R.; Qi, M.; Qi, T. Y.; Qian, S.; Qian, W. B.; Qian, Z.; Qiao, C. F.; Qin, J. J.; Qin, L. Q.; Qin, X. P.; Qin, X. S.; Qin, Z. H.; Qiu, J. F.; Qu, S. Q.; Rashid, K. H.; Ravindran, K.; Redmer, C. F.; Ren, K. J.; Rivetti, A.; Rodin, V.; Rolo, M.; Rong, G.; Rosner, Ch.; 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, R. S.; Shi, X.; Shi, X. D.; 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.; Sun, H. K.; Sun, J. F.; Sun, L.; Sun, S. S.; Sun, T.; Sun, W. Y.; Sun, X.; 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.; 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, S.; Wang, T.; Wang, T. J.; Wang, W.; Wang, W. H.; Wang, W. P.; Wang, X.; Wang, X. F.; Wang, X. L.; Wang, Y. D.; Wang, Y. F.; Wang, Y. H.; Wang, Y. Q.; 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, J. F.; Wu, L. H.; Wu, L. J.; Wu, X.; Wu, X. H.; Wu, Y.; Wu, Y. J.; Wu, Z.; Xia, L.; Xiang, T.; Xiao, G. Y.; Xiao, H.; Xiao, S. Y.; Xiao, Y. L.; Xiao, Z. J.; Xie, C.; Xie, X. H.; Xie, Y.; Xie, Y. G.; Xie, Y. H.; Xie, Z. P.; Xing, T. Y.; Xu, C. F.; Xu, C. J.; 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, Y. X.; Yang, Yifan; Ye, M.; Ye, M. H.; Yin, J. H.; You, Z. Y.; Yu, B. X.; Yu, C. X.; Yu, G.; Yu, J. S.; Yu, T.; Yuan, C. Z.; Yuan, L.; Yuan, S. C.; 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, G. Y.; Zhang, H.; Zhang, H. H.; Zhang, H. H.; Zhang, H. Y.; Zhang, J. L.; Zhang, J. Q.; Zhang, J. W.; 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, X. Y.; Zhang, Y.; Zhang, Y. T.; Zhang, Y. H.; Zhang, Yan; Zhang, Yao; Zhang, Z. H.; Zhang, Z. Y.; Zhang, Z. Y.; Zhao, G.; Zhao, J.; Zhao, J. Y.; Zhao, J. Z.; Zhao, Lei; Zhao, Ling; Zhao, M. G.; Zhao, Q.; Zhao, S. J.; Zhao, Y. B.; Zhao, Y. X.; Zhao, Z. G.; Zhemchugov, A.; Zheng, B.; Zheng, J. P.; Zheng, Y. H.; Zhong, B.; Zhong, C.; Zhong, X.; Zhou, H.; Zhou, L. P.; Zhou, X.; Zhou, X. K.; Zhou, X. R.; Zhou, X. Y.; Zhou, Y. Z.; Zhu, J.; Zhu, K.; Zhu, K. J.; Zhu, L. X.; Zhu, S. H.; Zhu, S. Q.; Zhu, T. J.; Zhu, W. J.; Zhu, Y. C.; Zhu, Z. A.; Zou, B. S.; Zou, J. H.

doi:10.1103/PhysRevLett.129.102003

Title: Observation of Resonance Structures in $e^{+} e^{-} \to π^{+} π^{-} ψ_{2} (3823)$ and Mass Measurement of $ψ_{2} (3823)$

Abstract

Using a data sample corresponding to an integrated luminosity of 11.3 fb^–1 collected at center-of-mass energies from 4.23 to 4.70 GeV with the BESIII detector, we measure the product of the e⁺e^– → π⁺π^– ψ₂(3823) cross section and the branching fraction B[ψ₂(3823) → γχc1]. For the first time, resonance structure is observed in the cross section line shape of e⁺e^– → π⁺π^–ψ₂(3823) with significances exceeding 5σ. A fit to data with two coherent Breit-Wigner resonances modeling the √s-dependent cross section yields M(R₁) = 4406.9 ± 17.2 ± 4.5 MeV/c², Γ(R₁) = 128.1 ± 37.2 ± 2.3 MeV, and M(R₂) = 4647.9 ± 8.6 ± 0.8 MeV/c², Γ(R₂) = 33.1 ± 18.6 ± 4.1 MeV. Though weakly disfavored by the data, a single resonance with M(R) = 4417.5 ± 26.2 ± 3.5 MeV/c², Γ(R) = 245 ± 48 ± 13 MeV is also possible to interpret data. This observation deepens our understanding of the nature of the vector charmoniumlike states. The mass of the ψ₂(3823) state is measured as (3823.12 ± 0.43 ± 0.13) MeV/c², which is the most precise measurement to date.

Authors:

Ablikim, M.; Achasov, M. N.; Adlarson, P.; Albrecht, M.; Aliberti, R.; Amoroso, A.; An, M. R.; An, Q.; Bai, X. H.; Bai, Y.; Bakina, O.; Baldini Ferroli, R.; Balossino, I.; Ban, Y.; Batozskaya, V.; Becker, D.; Begzsuren, K.; Berger, N.; Bertani, M.; Bettoni, D. more »

Publication Date:: Fri Sep 02 00:00:00 EDT 2022

Research Org.:: Indiana Univ., Bloomington, IN (United States); Univ. of Minnesota, Minneapolis, MN (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

Contributing Org.:: BESIII Collaboration

OSTI Identifier:: 1885173

Alternate Identifier(s):: OSTI ID: 1980313

Grant/Contract Number:: FG02-05ER41374; SC-0012069; CRC 1044; FOR 2359; GRK 214; SC0012069

Resource Type:: Published Article

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Name: Physical Review Letters Journal Volume: 129 Journal Issue: 10; Journal ID: ISSN 0031-9007

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Physics; Hadronic decays; Particle decays; Exotic mesons; Mass

Citation Formats


                    Ablikim, M., Achasov, M. N., Adlarson, P., Albrecht, M., Aliberti, R., Amoroso, A., An, M. R., An, Q., Bai, X. H., Bai, Y., Bakina, O., Baldini Ferroli, R., Balossino, I., Ban, Y., Batozskaya, V., Becker, D., Begzsuren, K., Berger, N., Bertani, M., Bettoni, D., Bianchi, F., Bloms, J., Bortone, A., Boyko, I., Briere, R. A., Brueggemann, A., Cai, H., Cai, X., Calcaterra, A., Cao, G. F., Cao, N., Cetin, S. A., Chang, J. F., Chang, W. L., Chelkov, G., Chen, C., Chen, G., Chen, H. S., Chen, M. L., Chen, S. J., Chen, T., Chen, X. R., Chen, X. T., Chen, Y. B., Chen, Z. J., Cheng, W. S., Cibinetto, G., Cossio, F., Cui, J. J., Dai, H. L., Dai, J. P., Dbeyssi, A., de Boer, R. E., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., 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, Y., Farinelli, R., Fava, L., Feldbauer, F., Felici, G., Feng, C. Q., Feng, J. H., Fischer, K., Fritsch, M., Fu, C. D., Gao, H., Gao, Y. N., Gao, Yang, Garbolino, S., Garzia, I., Ge, P. T., Ge, Z. W., Geng, C., Gersabeck, E. M., 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, T. T., Han, W. Y., Hao, X. Q., Harris, F. A., He, K. K., He, K. L., Heinsius, F. H., Heinz, C. H., Heng, Y. K., Herold, C., Himmelreich, M., Holtmann, T., 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, L. Q., Huang, X. T., Huang, Y. P., Huang, Z., Hussain, T., Hüsken, N., Imoehl, W., Irshad, M., Jackson, J., Jaeger, S., Janchiv, S., Ji, Q., 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., Kupsc, 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, Ke, 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, Xiaoyu, Li, Z. Y., Liang, H., Liang, H., 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, T., Liu, B. J., Liu, C. X., Liu, D., Liu, F. H., Liu, Fang, Liu, Feng, Liu, G. M., 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. C., Lu, F. X., Lu, H. J., Lu, J. G., Lu, X. L., Lu, Y., 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, H. L., Ma, L. L., Ma, M. M., Ma, Q. M., Ma, R. Q., Ma, R. T., Ma, X. Y., 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. X., Messchendorp, J. G., Mezzadri, G., Miao, H., Min, T. J., Mitchell, R. E., Mo, X. H., Muchnoi, N. Yu., Muramatsu, H., Nakhoul, S., 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. P., Peters, K., Ping, J. L., Ping, R. G., Plura, S., Pogodin, S., Poling, R., Prasad, V., Qi, H., Qi, H. R., Qi, M., Qi, T. Y., Qian, S., Qian, W. B., Qian, Z., Qiao, C. F., Qin, J. J., Qin, L. Q., Qin, X. P., Qin, X. S., Qin, Z. H., Qiu, J. F., Qu, S. Q., Rashid, K. H., Ravindran, K., Redmer, C. F., Ren, K. J., Rivetti, A., Rodin, V., Rolo, M., Rong, G., Rosner, Ch., 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, R. S., Shi, X., Shi, X. D., 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., Sun, H. K., Sun, J. F., Sun, L., Sun, S. S., Sun, T., Sun, W. Y., Sun, X., 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., 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, S., Wang, T., Wang, T. J., Wang, W., Wang, W. H., Wang, W. P., Wang, X., Wang, X. F., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. H., Wang, Y. Q., 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, J. F., Wu, L. H., Wu, L. J., Wu, X., Wu, X. H., Wu, Y., Wu, Y. J., Wu, Z., Xia, L., Xiang, T., Xiao, G. Y., Xiao, H., Xiao, S. Y., Xiao, Y. L., Xiao, Z. J., Xie, C., Xie, X. H., Xie, Y., Xie, Y. G., Xie, Y. H., Xie, Z. P., Xing, T. Y., Xu, C. F., Xu, C. J., 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, Y. X., Yang, Yifan, Ye, M., Ye, M. H., Yin, J. H., You, Z. Y., Yu, B. X., Yu, C. X., Yu, G., Yu, J. S., Yu, T., Yuan, C. Z., Yuan, L., Yuan, S. C., 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, G. Y., Zhang, H., Zhang, H. H., Zhang, H. H., Zhang, H. Y., Zhang, J. L., Zhang, J. Q., Zhang, J. W., 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, X. Y., Zhang, Y., Zhang, Y. T., Zhang, Y. H., Zhang, Yan, Zhang, Yao, Zhang, Z. H., Zhang, Z. Y., Zhang, Z. Y., Zhao, G., Zhao, J., Zhao, J. Y., Zhao, J. Z., Zhao, Lei, Zhao, Ling, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, Y. B., Zhao, Y. X., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhong, C., Zhong, X., Zhou, H., Zhou, L. P., Zhou, X., Zhou, X. K., Zhou, X. R., Zhou, X. Y., Zhou, Y. Z., Zhu, J., Zhu, K., Zhu, K. J., Zhu, L. X., Zhu, S. H., Zhu, S. Q., Zhu, T. J., Zhu, W. J., Zhu, Y. C., Zhu, Z. A., Zou, B. S., Zou, J. H., and BESIII Collaboration. Observation of Resonance Structures in e + e − → π + π − ψ 2 ( 3823 ) and Mass Measurement of ψ 2 ( 3823 ).  United States: N. p., 2022. 
Web.  doi:10.1103/PhysRevLett.129.102003.

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                    Ablikim, M., Achasov, M. N., Adlarson, P., Albrecht, M., Aliberti, R., Amoroso, A., An, M. R., An, Q., Bai, X. H., Bai, Y., Bakina, O., Baldini Ferroli, R., Balossino, I., Ban, Y., Batozskaya, V., Becker, D., Begzsuren, K., Berger, N., Bertani, M., Bettoni, D., Bianchi, F., Bloms, J., Bortone, A., Boyko, I., Briere, R. A., Brueggemann, A., Cai, H., Cai, X., Calcaterra, A., Cao, G. F., Cao, N., Cetin, S. A., Chang, J. F., Chang, W. L., Chelkov, G., Chen, C., Chen, G., Chen, H. S., Chen, M. L., Chen, S. J., Chen, T., Chen, X. R., Chen, X. T., Chen, Y. B., Chen, Z. J., Cheng, W. S., Cibinetto, G., Cossio, F., Cui, J. J., Dai, H. L., Dai, J. P., Dbeyssi, A., de Boer, R. E., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., 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, Y., Farinelli, R., Fava, L., Feldbauer, F., Felici, G., Feng, C. Q., Feng, J. H., Fischer, K., Fritsch, M., Fu, C. D., Gao, H., Gao, Y. N., Gao, Yang, Garbolino, S., Garzia, I., Ge, P. T., Ge, Z. W., Geng, C., Gersabeck, E. M., 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, T. T., Han, W. Y., Hao, X. Q., Harris, F. A., He, K. K., He, K. L., Heinsius, F. H., Heinz, C. H., Heng, Y. K., Herold, C., Himmelreich, M., Holtmann, T., 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, L. Q., Huang, X. T., Huang, Y. P., Huang, Z., Hussain, T., Hüsken, N., Imoehl, W., Irshad, M., Jackson, J., Jaeger, S., Janchiv, S., Ji, Q., 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., Kupsc, 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, Ke, 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, Xiaoyu, Li, Z. Y., Liang, H., Liang, H., 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, T., Liu, B. J., Liu, C. X., Liu, D., Liu, F. H., Liu, Fang, Liu, Feng, Liu, G. M., 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. C., Lu, F. X., Lu, H. J., Lu, J. G., Lu, X. L., Lu, Y., 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, H. L., Ma, L. L., Ma, M. M., Ma, Q. M., Ma, R. Q., Ma, R. T., Ma, X. Y., 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. X., Messchendorp, J. G., Mezzadri, G., Miao, H., Min, T. J., Mitchell, R. E., Mo, X. H., Muchnoi, N. Yu., Muramatsu, H., Nakhoul, S., 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. P., Peters, K., Ping, J. L., Ping, R. G., Plura, S., Pogodin, S., Poling, R., Prasad, V., Qi, H., Qi, H. R., Qi, M., Qi, T. Y., Qian, S., Qian, W. B., Qian, Z., Qiao, C. F., Qin, J. J., Qin, L. Q., Qin, X. P., Qin, X. S., Qin, Z. H., Qiu, J. F., Qu, S. Q., Rashid, K. H., Ravindran, K., Redmer, C. F., Ren, K. J., Rivetti, A., Rodin, V., Rolo, M., Rong, G., Rosner, Ch., 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, R. S., Shi, X., Shi, X. D., 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., Sun, H. K., Sun, J. F., Sun, L., Sun, S. S., Sun, T., Sun, W. Y., Sun, X., 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., 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, S., Wang, T., Wang, T. J., Wang, W., Wang, W. H., Wang, W. P., Wang, X., Wang, X. F., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. H., Wang, Y. Q., 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, J. F., Wu, L. H., Wu, L. J., Wu, X., Wu, X. H., Wu, Y., Wu, Y. J., Wu, Z., Xia, L., Xiang, T., Xiao, G. Y., Xiao, H., Xiao, S. Y., Xiao, Y. L., Xiao, Z. J., Xie, C., Xie, X. H., Xie, Y., Xie, Y. G., Xie, Y. H., Xie, Z. P., Xing, T. Y., Xu, C. F., Xu, C. J., 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, Y. X., Yang, Yifan, Ye, M., Ye, M. H., Yin, J. H., You, Z. Y., Yu, B. X., Yu, C. X., Yu, G., Yu, J. S., Yu, T., Yuan, C. Z., Yuan, L., Yuan, S. C., 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, G. Y., Zhang, H., Zhang, H. H., Zhang, H. H., Zhang, H. Y., Zhang, J. L., Zhang, J. Q., Zhang, J. W., 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, X. Y., Zhang, Y., Zhang, Y. T., Zhang, Y. H., Zhang, Yan, Zhang, Yao, Zhang, Z. H., Zhang, Z. Y., Zhang, Z. Y., Zhao, G., Zhao, J., Zhao, J. Y., Zhao, J. Z., Zhao, Lei, Zhao, Ling, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, Y. B., Zhao, Y. X., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhong, C., Zhong, X., Zhou, H., Zhou, L. P., Zhou, X., Zhou, X. K., Zhou, X. R., Zhou, X. Y., Zhou, Y. Z., Zhu, J., Zhu, K., Zhu, K. J., Zhu, L. X., Zhu, S. H., Zhu, S. Q., Zhu, T. J., Zhu, W. J., Zhu, Y. C., Zhu, Z. A., Zou, B. S., Zou, J. H., & BESIII Collaboration. Observation of Resonance Structures in e + e − → π + π − ψ 2 ( 3823 ) and Mass Measurement of ψ 2 ( 3823 ).  United States.  https://doi.org/10.1103/PhysRevLett.129.102003

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                    Ablikim, M., Achasov, M. N., Adlarson, P., Albrecht, M., Aliberti, R., Amoroso, A., An, M. R., An, Q., Bai, X. H., Bai, Y., Bakina, O., Baldini Ferroli, R., Balossino, I., Ban, Y., Batozskaya, V., Becker, D., Begzsuren, K., Berger, N., Bertani, M., Bettoni, D., Bianchi, F., Bloms, J., Bortone, A., Boyko, I., Briere, R. A., Brueggemann, A., Cai, H., Cai, X., Calcaterra, A., Cao, G. F., Cao, N., Cetin, S. A., Chang, J. F., Chang, W. L., Chelkov, G., Chen, C., Chen, G., Chen, H. S., Chen, M. L., Chen, S. J., Chen, T., Chen, X. R., Chen, X. T., Chen, Y. B., Chen, Z. J., Cheng, W. S., Cibinetto, G., Cossio, F., Cui, J. J., Dai, H. L., Dai, J. P., Dbeyssi, A., de Boer, R. E., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., 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, Y., Farinelli, R., Fava, L., Feldbauer, F., Felici, G., Feng, C. Q., Feng, J. H., Fischer, K., Fritsch, M., Fu, C. D., Gao, H., Gao, Y. N., Gao, Yang, Garbolino, S., Garzia, I., Ge, P. T., Ge, Z. W., Geng, C., Gersabeck, E. M., 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, T. T., Han, W. Y., Hao, X. Q., Harris, F. A., He, K. K., He, K. L., Heinsius, F. H., Heinz, C. H., Heng, Y. K., Herold, C., Himmelreich, M., Holtmann, T., 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, L. Q., Huang, X. T., Huang, Y. P., Huang, Z., Hussain, T., Hüsken, N., Imoehl, W., Irshad, M., Jackson, J., Jaeger, S., Janchiv, S., Ji, Q., 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., Kupsc, 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, Ke, 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, Xiaoyu, Li, Z. Y., Liang, H., Liang, H., 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, T., Liu, B. J., Liu, C. X., Liu, D., Liu, F. H., Liu, Fang, Liu, Feng, Liu, G. M., 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. C., Lu, F. X., Lu, H. J., Lu, J. G., Lu, X. L., Lu, Y., 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, H. L., Ma, L. L., Ma, M. M., Ma, Q. M., Ma, R. Q., Ma, R. T., Ma, X. Y., 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. X., Messchendorp, J. G., Mezzadri, G., Miao, H., Min, T. J., Mitchell, R. E., Mo, X. H., Muchnoi, N. Yu., Muramatsu, H., Nakhoul, S., 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. P., Peters, K., Ping, J. L., Ping, R. G., Plura, S., Pogodin, S., Poling, R., Prasad, V., Qi, H., Qi, H. R., Qi, M., Qi, T. Y., Qian, S., Qian, W. B., Qian, Z., Qiao, C. F., Qin, J. J., Qin, L. Q., Qin, X. P., Qin, X. S., Qin, Z. H., Qiu, J. F., Qu, S. Q., Rashid, K. H., Ravindran, K., Redmer, C. F., Ren, K. J., Rivetti, A., Rodin, V., Rolo, M., Rong, G., Rosner, Ch., 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, R. S., Shi, X., Shi, X. D., 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., Sun, H. K., Sun, J. F., Sun, L., Sun, S. S., Sun, T., Sun, W. Y., Sun, X., 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., 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, S., Wang, T., Wang, T. J., Wang, W., Wang, W. H., Wang, W. P., Wang, X., Wang, X. F., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. H., Wang, Y. Q., 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, J. F., Wu, L. H., Wu, L. J., Wu, X., Wu, X. H., Wu, Y., Wu, Y. J., Wu, Z., Xia, L., Xiang, T., Xiao, G. Y., Xiao, H., Xiao, S. Y., Xiao, Y. L., Xiao, Z. J., Xie, C., Xie, X. H., Xie, Y., Xie, Y. G., Xie, Y. H., Xie, Z. P., Xing, T. Y., Xu, C. F., Xu, C. J., 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, Y. X., Yang, Yifan, Ye, M., Ye, M. H., Yin, J. H., You, Z. Y., Yu, B. X., Yu, C. X., Yu, G., Yu, J. S., Yu, T., Yuan, C. Z., Yuan, L., Yuan, S. C., 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, G. Y., Zhang, H., Zhang, H. H., Zhang, H. H., Zhang, H. Y., Zhang, J. L., Zhang, J. Q., Zhang, J. W., 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, X. Y., Zhang, Y., Zhang, Y. T., Zhang, Y. H., Zhang, Yan, Zhang, Yao, Zhang, Z. H., Zhang, Z. Y., Zhang, Z. Y., Zhao, G., Zhao, J., Zhao, J. Y., Zhao, J. Z., Zhao, Lei, Zhao, Ling, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, Y. B., Zhao, Y. X., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhong, C., Zhong, X., Zhou, H., Zhou, L. P., Zhou, X., Zhou, X. K., Zhou, X. R., Zhou, X. Y., Zhou, Y. Z., Zhu, J., Zhu, K., Zhu, K. J., Zhu, L. X., Zhu, S. H., Zhu, S. Q., Zhu, T. J., Zhu, W. J., Zhu, Y. C., Zhu, Z. A., Zou, B. S., Zou, J. H., and BESIII Collaboration. Fri .  
"Observation of Resonance Structures in e + e − → π + π − ψ 2 ( 3823 ) and Mass Measurement of ψ 2 ( 3823 )".  United States.  https://doi.org/10.1103/PhysRevLett.129.102003.

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@article{osti_1885173,

  title        = {Observation of Resonance Structures in e + e − → π + π − ψ 2 ( 3823 ) and Mass Measurement of ψ 2 ( 3823 )},

  author       = {Ablikim, M. and Achasov, M. N. and Adlarson, P. and Albrecht, M. and Aliberti, R. and Amoroso, A. and An, M. R. and An, Q. and Bai, X. H. and Bai, Y. and Bakina, O. and Baldini Ferroli, R. and Balossino, I. and Ban, Y. and Batozskaya, V. and Becker, D. and Begzsuren, K. and Berger, N. and Bertani, M. and Bettoni, D. and Bianchi, F. and Bloms, J. and Bortone, A. and Boyko, I. and Briere, R. A. and Brueggemann, A. and Cai, H. and Cai, X. and Calcaterra, A. and Cao, G. F. and Cao, N. and Cetin, S. A. and Chang, J. F. and Chang, W. L. and Chelkov, G. and Chen, C. and Chen, G. and Chen, H. S. and Chen, M. L. and Chen, S. J. and Chen, T. and Chen, X. R. and Chen, X. T. and Chen, Y. B. and Chen, Z. J. and Cheng, W. S. and Cibinetto, G. and Cossio, F. and Cui, J. J. and Dai, H. L. and Dai, J. P. and Dbeyssi, A. and de Boer, R. E. and Dedovich, D. and Deng, Z. Y. and Denig, A. and Denysenko, I. and Destefanis, M. and De Mori, F. and Ding, Y. and Dong, J. and Dong, L. 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  abstractNote = {Using a data sample corresponding to an integrated luminosity of 11.3 fb–1 collected at center-of-mass energies from 4.23 to 4.70 GeV with the BESIII detector, we measure the product of the e+e– → π+π– ψ2(3823) cross section and the branching fraction B[ψ2(3823) → γχc1]. For the first time, resonance structure is observed in the cross section line shape of e+e– → π+π–ψ2(3823) with significances exceeding 5σ. A fit to data with two coherent Breit-Wigner resonances modeling the √s-dependent cross section yields M(R1) = 4406.9 ± 17.2 ± 4.5 MeV/c2, Γ(R1) = 128.1 ± 37.2 ± 2.3 MeV, and M(R2) = 4647.9 ± 8.6 ± 0.8 MeV/c2, Γ(R2) = 33.1 ± 18.6 ± 4.1 MeV. Though weakly disfavored by the data, a single resonance with M(R) = 4417.5 ± 26.2 ± 3.5 MeV/c2, Γ(R) = 245 ± 48 ± 13 MeV is also possible to interpret data. This observation deepens our understanding of the nature of the vector charmoniumlike states. The mass of the ψ2(3823) state is measured as (3823.12 ± 0.43 ± 0.13) MeV/c2, which is the most precise measurement to date.},

  doi          = {10.1103/PhysRevLett.129.102003},

  journal      = {Physical Review Letters},

  number       = 10,

  volume       = 129,

  place        = {United States},

  year         = {Fri Sep 02 00:00:00 EDT 2022},

  month        = {Fri Sep 02 00:00:00 EDT 2022}

}

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Title: Observation of Resonance Structures in e + e − → π + π − ψ 2 ( 3823 ) and Mass Measurement of ψ 2 ( 3823 )

Abstract

Citation Formats

Search for hidden charm states decaying into J /ψ or ψ’ plus pions journal, October 1994

Study of MRPC technology for BESIII endcap-TOF upgrade journal, July 2017

The study of time calibration for upgraded end cap TOF of BESIII journal, July 2017

Search for hadronic transition χ c J → η c π + π − and observation of χ c J → K K ¯ π π π journal, January 2013

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Precision measurement of the integrated luminosity of the data taken by BESIII at center-of-mass energies between 3.810 GeV and 4.600 GeV journal, September 2015

The EvtGen particle decay simulation package journal, April 2001

Observation of a Narrow Charmoniumlike State in Exclusive B ± → K ± π + π − J / ψ Decays journal, December 2003

Observation of a Near-Threshold Structure in the K + Recoil-Mass Spectra in e + e − → K + ( D s − D * 0 + D s * − D 0 ) journal, March 2021

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Crucial test for the color-octet production mechanism in Z 0 decays journal, April 1997

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Observation of e + e − → γ X ( 3872 ) at BESIII journal, March 2014

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Observation of a vector charmoniumlike state in e + e − → D s + D s 1 ( 2536 ) − + c . c . journal, December 2019

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Observation of a Charged Charmoniumlike Structure in e + e − → π + π − J / ψ at s = 4.26 GeV journal, June 2013

Study of e + e − → π + π − J / ψ and Observation of a Charged Charmoniumlike State at Belle journal, June 2013

Cross section measurement of e + e − → π + π − ψ ( 3686 ) from s = 4.0076 GeV to 4.6984 GeV journal, September 2021

PHOTOS Monte Carlo: a precision tool for QED correctionsin Z and W decays journal, January 2006

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Study of e + e − → γ ω J / ψ and Observation of X ( 3872 ) → ω J / ψ journal, June 2019

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Evidence of Two Resonant Structures in e + e − → π + π − h c journal, March 2017

Evidence for a vector charmoniumlike state in e + e − → D s + D s 2 * ( 2573 ) − + c . c . journal, May 2020

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Title: Observation of Resonance Structures in $e^{+} e^{-} \to π^{+} π^{-} ψ_{2} (3823)$ and Mass Measurement of $ψ_{2} (3823)$

Search for hidden charm states decaying into J /ψ or ψ’ plus pions
journal, October 1994

Study of MRPC technology for BESIII endcap-TOF upgrade
journal, July 2017

The study of time calibration for upgraded end cap TOF of BESIII
journal, July 2017

Search for hadronic transition $χ_{c J} \to η_{c} π^{+} π^{-}$ and observation of $χ_{c J} \to K \bar{K} π π π$
journal, January 2013

Search for new decay modes of the $ψ_{2} (3823)$ and the process $e^{+} e^{-} \to π^{0} π^{0} ψ_{2} (3823)$
journal, May 2021

Precision measurement of the integrated luminosity of the data taken by BESIII at center-of-mass energies between 3.810 GeV and 4.600 GeV
journal, September 2015

The EvtGen particle decay simulation package
journal, April 2001

Observation of a Narrow Charmoniumlike State in Exclusive $B^{\pm} \to K^{\pm} π^{+} π^{-} J / ψ$ Decays
journal, December 2003

Observation of a Near-Threshold Structure in the $K^{+}$ Recoil-Mass Spectra in $e^{+} e^{-} \to K^{+} (D_{s}^{-} D^{* 0} + D_{s}^{* -} D^{0})$
journal, March 2021

The precision Monte Carlo event generator for two-fermion final states in collisions
journal, August 2000

Crucial test for the color-octet production mechanism in $Z^{0}$ decays
journal, April 1997

A uniform description of the states recently observed at B-factories
journal, May 2008

Measurement of the $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ Cross Section Via Initial-State Radiation at Belle
journal, November 2007

Design and construction of the new BESIII endcap Time-of-Flight system with MRPC Technology
journal, February 2020

Measurements of the center-of-mass energies of collisions at BESIII *
journal, October 2021

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journal, March 2014

The $X Y Z$ states: Experimental and theoretical status and perspectives
journal, August 2020

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journal, July 2019

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journal, July 2015

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journal, July 2013

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journal, December 2019

Evidence of a Broad Structure at an Invariant Mass of $4.32 GeV / c^{2}$ in the Reaction $e^{+} e^{-} \to π^{+} π^{-} ψ (2 S)$ Measured at BABAR
journal, May 2007

Observation of a Charged Charmoniumlike Structure in $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ at $\sqrt{s} = 4.26 GeV$
journal, June 2013

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journal, June 2013

Cross section measurement of $e^{+} e^{-} \to π^{+} π^{-} ψ (3686)$ from $\sqrt{s} = 4.0076 GeV$ to 4.6984 GeV
journal, September 2021

PHOTOS Monte Carlo: a precision tool for QED correctionsin Z and W decays
journal, January 2006

Study of the reaction $e^{+} e^{-} \to ψ (2 S) π^{+} π^{-}$ via initial-state radiation at BaBar
journal, June 2014

Study of $e^{+} e^{-} \to γ ω J / ψ$ and Observation of $X (3872) \to ω J / ψ$
journal, June 2019

Nonstandard heavy mesons and baryons: Experimental evidence
journal, February 2018

Precise Measurement of the $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV
journal, March 2017

Evidence of Two Resonant Structures in $e^{+} e^{-} \to π^{+} π^{-} h_{c}$
journal, March 2017

Evidence for a vector charmoniumlike state in $e^{+} e^{-} \to D_{s}^{+} D_{s 2}^{*} (2573)^{-} + c . c .$
journal, May 2020

Observation of $e^{+} e^{-} \to π^{+} π^{-} ψ (3770)$ and $D_{1} (2420)^{0} {\bar{D}}^{0} + c . c .$
journal, August 2019

Observation of a Broad Structure in the $π^{+} π^{-} J / ψ$ Mass Spectrum around $4.26 GeV / c^{2}$
journal, September 2005

Observation of Two Resonant Structures in $e^{+} e^{-} \to π^{+} π^{-} ψ (2 S)$ via Initial-State Radiation at Belle
journal, October 2007

Observation of $e^{+} e^{-} \to ω χ_{c 1, 2}$ near $\sqrt{s} = 4.42$ and 4.6 GeV
journal, January 2016

Review of Particle Physics
journal, August 2022

Event generators at BESIII
journal, August 2008

Geant4—a simulation toolkit
journal, July 2003

Higher charmonia
journal, September 2005

Measurement of e+e−→γχc0,c1,c2 cross sections at center-of-mass energies between 3.77 and 4.60 GeV
journal, November 2021

Measurements of $h_{c} ({}^{1}P_{1})$ in $ψ^{'}$ Decays
journal, March 2010

$Z (4430)$ and a new paradigm for spin interactions in tetraquarks
journal, June 2014

Study of the ψ2(3823) and χc1(3872) states in B+ → (J/ψπ+π−)K+ decays
journal, August 2020

QED bremsstrahlung in semileptonic B and leptonic τ decays
journal, April 1993

Observation of $e^{+} e^{-} \to η^{'} J / ψ$ at center-of-mass energies between 4.189 and 4.600 GeV
journal, August 2016

Measurements of the center-of-mass energies at BESIII via the di-muon process
journal, June 2016

Design and construction of the BESIII detector
journal, March 2010

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journal, October 2008

Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays
journal, April 2022