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Achasov, M. N.; Ahmed, S.; Amoroso, A.; Anita; Bai, Y.; Bennett, J. V.; Bertani, M.; Cai, X.; Calcaterra, A.; Chen, H. S.; Cibinetto, G.; Cui, X. F.; Dai, H. L.; de Boer, R. B.; De Mori, F.; Farinelli, R.; Felici, G.; Gilman, A.; Guan, C. Y.; Guo, A. Q.; He, K. L.; Hu, J. F.; Hu, Y.; Huesken, N.; Imoehl, W.; Irshad, M.; Ji, X. L.; Johansson, T.; Kang, X. S.; Kiuchi, R.; Kolcu, O. B.; Kuessner, M.; Kühn, W.; Li, H. J.; Li, J. Q.; Li, P. L.; Li, W. D.; Li, X. H.; Liao, L. Z.; Liu, B.; Liu, B. J.; Liu, C. X.; Liu, F. H.; Liu, Feng; Liu, K.; Long, Y. F.; Lu, H. J.; Lu, J. G.; Lu, X. L.; Lu, Y. P.; Luo, P. W.; Ma, Q. M.; Maas, F. E.; Maldaner, S.; Mao, Y. J.; Meng, Z. X.; Min, T. J.; Mitchell, R. E.; Mo, Y. J.; Muramatsu, H.; Nerling, F.; Ning, Z.; Rivetti, A.; Rosner, Ch; Rump, M.; Savrié, M.; Shao, M.; Shen, P. X.; Shi, R. S.; Sun, G. X.; Sun, Y. J.; Thoren, V.; Uman, I.; Wang, B.; Wang, B. L.; Wang, M.; Weber, T.; Wu, Z.; Xia, L.; Xie, Y. H.; Xu, W.; Yang, Y. H.; Yang, Yifan; Yin, J. H.; Yu, C. X.; Zhang, B. X.; Zhang, H. Y.; Zhang, J. Q.; Zhang, J. W.; Zhang, Jianyu; Zhang, T. J.; Zhang, X. Y.; Zhao, G.; Zhao, J. Z.; Zhao, Y. X. Zhao; Zheng, J. P.; Zhong, C.; Zhu, X. L.; Zhu, Y. C.; Zou, J. H.
Physical review letters, 06/2020, Letnik: 124, Številka: 24Journal Article
The processes X(3872) ... , and γD+D− are searched for in a 9.0 fb−1 data sample collected at center-of-mass energies between 4.178 and 4.278 GeV with the BESIII detector. We observe X(3872) ... . and find evidence for X (3872)→γJ/ψ with statistical significances of 7.4 σ and 3.5σ, respectively. No evident signals for X(3872)→γψ(2S) and γD+D− are found, and the upper limit on the relative branching ratio Rγψ ≡ {BX(3872)→γψ(2S)}/{BX(3872)→γJ/ψ} <0.59 is set at 90% confidence level. Measurements of branching ratios relative to decay X(3872)→π+π−J/ψ are also reported for decays ... .,γψ(2S), γJ/ψ, and γD+D−, as well as the non-... three-body decays ... .(ProQuest: ... denotes formulae omitted.)
