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Observation of the Y(4230) and a new structure in *
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. 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. Chu, X. 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, W.X. Fang, Y. Farinelli, R. Fava, L. Feldbauer, F. Felici, G. Feng, C.Q. Feng, J.H. Fischer, K Fritsch, M. Fritzsch, C. Fu, C.D. Gao, H. Gao, Y.N. Gao, Yang Garbolino, S. Garzia, I. Ge, P.T. Geng, C. Gersabeck, E.M. Gilman, A Goetzen, K. Gong, L. Gong, W.X. Gradl, W. Greco, M. Gu, M.H. 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, 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.H. Li, Cheng Li, D.M. Li, F. Li, G. Li, H. Li, H.B. Li, H.J. Li, H.N. Li, J.Q. Li, J.S. Li, J.W. Li, Ke J Li, L. 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, 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. 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, 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. 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. Pettersson, J. Ping, J.L. Ping, R.G. Plura, S. Pogodin, S. Poling, R. Prasad, V. Qi, F.Z. 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. 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, R.S. Shi, X. D 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. 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. Y Tao, L. Tao, Q.T. Teng, J.X. Thoren, V. Tian, W.H. Tian, Y. Uman, I. Wang, B. Wang, B.L. 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.D. Wang, Y.F. Wang, Y.H. Wang, Y.Q. Wang, Ying 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, Z. Xia, L. Xiang, T. Xiao, D. Xiao, H. Xiao, S.Y. Xiao, Y.L. Xiao, Z.J. 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, Q.J. Xu, S.Y. Xu, X.P. Xu, Y.C. 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, Y.X. Yang, Yifan Ye, M. Ye, M.H. Yin, J.H. You, Z.Y. Yu, B.X. Yu, C.X. Yu, G. 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, D.H. Zhang, G.Y. Zhang, 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, 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, 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, T.J. Zhu, W.J. Zhu, Y.C. Zhu, Z.A. Zou, B.S. Zou, J.H. (BESIII Collaboration)
Source :
Chinese Physics
Publication Year :
2022
Publisher :
IOP Publishing, 2022.
Abstract
The cross sections of at center-of-mass energies from 4.127 to 4.600 GeV are measured based on 15.6 fb data collected with the BESIII detector operating at the BEPCII storage ring. Two resonant structures are observed in the line shape of the cross sections. The mass and width of the first structure are measured to be ( ) MeV and ( ) MeV, respectively. They are consistent with those of the established . The second structure is observed for the first time with a statistical significance greater than 8σ, denoted as . Its mass and width are determined to be ( ) MeV and ( ) MeV, respectively. The first presented uncertainties are statistical and the second ones are systematic. The product of the electronic partial width with the decay branching fraction is reported.
Details
ISSN :
20586132 and 16741137
Volume :
46
Database :
OpenAIRE
Journal :
Chinese Physics C
Accession number :
edsair.doi.dedup.....55ba5517717bf1ca33b268e0b3734d8a