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Study of e+e- →γωJ /ψ and Observation of X (3872) →ωJ /ψ

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成果类型:
期刊论文
作者:
Ablikim, M.;Achasov, M. N.;Adlarson, P.;Ahmed, S.;Albrecht, M.;...
通讯作者:
Liu, Zhiqing
作者机构:
[Dai, X. C.; Wang, X. F.; Hu, T.; Sun, Z. J.; Ning, Z.; Shi, X.; Sun, G. X.; Min, J.; Zhao, Ling; Zhu, Z. A.; Xu, G. F.; Zhou, L. P.; Heng, Y. K.; Ji, Q.; Zhang, J. W.; Rong, G.; Zhou, Q.; Wang, Y. F.; Wang, L. L.; Jin, D. P.; Xiu, Q. L.; Lu, Y.; Ouyang, Q.; Kurth, M.; Ji, X. B.; Qian, S.; Dong, M. Y.; Fang, S. S.; Wang, Zongyuan; Liu, Z. A.; Ke, B. C.; Liu, X. Y.; Sun, S. S.; Fu, C. D.; Thoren, V; Lou, X. C.; Wang, Z. G.; Zhang, B. X.; Fu, Y.; Sun, X. H.; Xing, T. Y.; Cao, G. F.; Xiao, Y. J.; Wang, B. L.; Wu, L. H.; Zhao, Y. B.; Gao, Q.; Zheng, J. P.; Zhang, B. Y.; Jiang, X. S.; Kiuchi, R.; Gu, M. H.; Lu, Y. P.; Dong, L. Y.; Yang, S. L.; Zhao, G.; Wu, L. J.; Zhu, S. H.; Yang, Yifan; Yuan, Y.; Wu, Z.; Fang, Y.; Luo, X. L.; Ji, X. L.; Zhu, A. N.; Li, L. K.; Li, H. B.; Zhuang, J.; Li, J. C.; Liang, H.; Zhang, Yang; Liao, L. Z.; Zhang, J. Y.; Wang, L. S.; Yin, J. H.; Liu, Huanhuan; Zhang, J. Z.; He, K. L.; Chen, G.; Xiong, X. A.; Chen, J. C.; Ablikim, M.; Liu, C. X.; Chang, W. L.; Kurth, M. G.; Zhao, J. Z.; Mao, Z. P.; Zhao, Q.; Xiao, S. Y.; Lu, J. G.; Chen, Y. B.; Niu, S. L.; Wang, Z.; Liu, Fang; Zhao, J. Y.; Dong, J.; Zhang, C. C.; Zhang, D. H.; Yuan, C. Z.; Tang, G. Y.; Zhang, H. Y.; Chen, M. L.; Li, K. N.; You, B. X.; Hou, Z. L.; Sun, Y. Z.; Liu, B. J.; Li, Ke; Zhu, K. J.; Liu, H. M.; Ma, H. L.; Ye, M.; Xie, Y. G.; Sheng, H. Y.; Song, X. Y.; Zou, B. S.; Chen, H. S.; Cao, N.; Deng, Z. Y.; Ma, Q. M.; Wang, Z. Y.; Zhao, T. C.; Cai, X.; Zhang, Y. H.; An, F. F.; Zou, J. H.; Zhang, Yao; Liu, J. Y.; Li, W. G.; Mo, X. H.; Zhou, L.; Fang, J.; Ma, X. X.; Shen, X. Y.; Zhu, Y. S.; Sun, Z. T.; Liu, T.; Ma, X. Y.; Hu, H. M.; Gong, W. X.; Wang, P. L.; Zhang, J.; Hu, Y.; Wang, Meng; Li, F.; Zhang, K.; Tang, X.; Yang, H. X.; Qin, Z. H.; Li, G.; Ping, R. G.; Qiu, J. F.; Zhao, J. W.; Dai, H. L.; Li, W. D.] Inst High Energy Phys, Beijing 100049, Peoples R China.
[Yan, W. C.; Shen, C. P.; Gu, S.; Qi, T. Y.] Beihang Univ, Beijing 100191, Peoples R China.
[Wang, X.; Li, Lei] Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China.
[Fritsch, M.; Heinsius, F. H.; Zhang, J. Q.; Weber, T.; Mustafa, A.; Kuessner, M.; Pitka, A.; Richter, M.; Pelizaeus, M.; Kopf, B.; Keshk, I. K.; Qin, X. S.; Albrecht, M.; Sowa, C.; Feldbauer, F.; Wiedner, U.; Kuemmel, M.; Held, T.] Bochum Ruhr Univ, D-44780 Bochum, Germany.
[Bennett, J., V; Briere, R. A.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
通讯机构:
[Liu, Zhiqing] S
Shandong Univ, Jinan 250100, Shandong, Peoples R China.
语种:
英文
期刊:
PHYSICAL REVIEW LETTERS
ISSN:
0031-9007
年:
2019
卷:
122
期:
23
基金类别:
The BESIII collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contract No. 2015CB856700; National Natural Science Foundation of China (NSFC) under Contracts No. 11335008, No. 11425524, No. 11625523, No. 11635010, and No. 11735014; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1532257, No. U1532258, and No. U1732263; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; German Research Foundation DFG under Contract No. Collaborative Research Center CRC 1044; Istituto Nazionale di Fisica Nucleare, Italy; Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) under Contract No. 530-4CDP03; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Swedish Research Council; U. S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-0010118, and No. DE-SC-0012069; University of Groningen (RuG); and the Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt.
机构署名:
本校为其他机构
摘要:
We study the e+e-→γωJ/ψ process using 11.6 fb-1 e+e- annihilation data taken at center-of-mass energies from s=4.008 GeV to 4.600 GeV with the BESIII detector at the BEPCII storage ring. The X(3872) resonance is observed for the first time in the ωJ/ψ system with a significance of more than 5σ. The relative decay ratio of X(3872)→ωJ/ψ and π+π-J/ψ is measured to be R=1.6-0.3+0.4±0.2, where the first uncertainty is statistical and the second systematic (the same hereafter). The s-dependent cross section of e+e-→γX(3872) is also me...

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