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Achasov, M N; Amoroso, A; Cai, X; Chen, H S; Chen, S M; Cheng, W S; Chu, X; Cossio, F; Ding, Y; Du, S X; Fang, S S; Fritsch, M; Gao, H; Garbolino, S; Ge, Z W; Gersabeck, E M; Harris, F A; Hou, Y R; Hüsken, N; Imoehl, W; Jaeger, S; Ji, Q P; Jia, Z K; Jin, S; Johansson, T; Kabana, S; Kopf, B; Kuemmel, M; Larin, P; Lenz, T; Li, G; Li, H B; Li, M H; Li, W D; Li, Y G; Li, Z Y; Liu, D; Liu, Huihui; Liu, K; Liu, Q; Liu, W K; Liu, Y B; Lu, H J; Lu, Z H; Lyu, X R; Ma, H L; Ma, L L; Ma, R Q; Ma, R T; Maas, F E; Malik, Q A; Mangoni, A; Messchendorp, J G; Mezzadri, G; Ping, R G; Rodin, V; Schelhaas, Y; Schoenning, K; Shan, X Y; Shen, C P; Shi, B A; Sun, G X; Sun, W Y; Tang, G Y; Tian, W H; Wang, B; Wang, H P; Wang, W P; Wang, X; Wang, Y Q; Wang, Yaqian; Wiedner, U; Wollenberg, L; Wu, L J; Wu, X; Xiao, D; Xiao, H; Xie, C; Xie, Z P; Xu, C J; Yan, F; Yan, W B; Yan, W C; Yang, H L; Yang, Tao; Yin, J H; Yuan, C Z; Zhang, H; Zhang, H Y; Zhang, Jiawei; Zhang, Lei; Zhang, P; Zhang, Shuihan; Zhang, Yao; Zhao, G; Zhao, J Y; Zhao, Y X; Zhu, K J; Zhu, S Q; Zou, J H
Physical review letters, 04/2023, Letnik: 130, Številka: 15Journal Article
Using 4.7 fb^{-1} of e^{+}e^{-} collision data at center-of-mass energies from 4.661 to 4.951 GeV collected by the BESIII detector at the BEPCII collider, we observe the X(3872) production process e^{+}e^{-}→ωX(3872) for the first time. The significance is 7.8σ, including both the statistical and systematic uncertainties. The e^{+}e^{-}→ωX(3872) Born cross section and the corresponding upper limit at 90% confidence level at each energy point are reported. The line shape of the cross section indicates that the ωX(3872) signals may be from the decays of some nontrivial structures.
