Observation of a New X ( 3872 ) Production Process e + e − → ω X ( 3872 )

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 s...

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Published in:	Physical review letters 2023-04, Vol.130 (15), p.151904, Article 151904
Main Authors:	Achasov, M. N., Amoroso, A., Bortone, A., Calcaterra, A., Chang, J. F., Chen, G., Chen, M. L., Cheng, W. S., Cui, J. J., Dai, H. L., Dbeyssi, A., Fava, L., Felici, G., Fritsch, M., Fritzsch, C., Gao, H., Gilman, A, Gu, M. H., Guan, C. Y, Guo, A. Q., Guo, L. B., Hu, H. M., Hu, T., Ji, Q., Ji, X. L., Jia, Z. K., Jiao, J. B., Jin, S., Ke, B. C., Keshk, I. K., Koch, L., Kopf, B., Larin, P., Lavania, A., Liang, H., Limphirat, A., Lin, C. X., Lin, D. X., Liu, C. X., Liu, Fang, Liu, H., Liu, J. B., Liu, J. L., Liu, S. B., Liu, Z. A., Luo, C. L., Luo, T., Lyu, X. R., Ma, Y., Mao, Y. J., Meng, Z. X., Min, T. J., Nikolaev, I. B., Ning, Z., Nisar, S., Olsen, S. L., Pacetti, S., Peters, K., Prasad, V., Qian, S., Qin, X. P., Qin, Z. H., Scodeggio, M., Shen, C. P., Shen, H. F., Shen, X. Y., Shi, H. C., Song, J. J., Su, P. P., Su, Y. J., Sun, W. Y., Tang, J., Tat, M., Tian, W. H., Wang, L. L., Wang, M., Wang, S., Wang, W., Wang, X., Wang, X. F., Wang, Z., Wu, Y., Xiang, T., Xiao, G. Y., Xiao, H., Xiao, Z. J., Yan, F., Yang, Yifan, Yu, C. X., Yuan, Z. Y., Zhai, X. Y., Zhan, Y. H., Zhang, J. W., Zhang, Jianyu, Zhang, X. M., Zhang, Yao, Zhao, J. Y., Zhou, X. K., Zhou, Y. Z., Zhu, S. H.
Format:	Article
Language:	English
Subjects:	Exotic mesons Particle production Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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