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Precise Measurement of the e+e- →π+π-J /ψ Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV

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成果类型:
期刊论文
作者:
Ablikim, M.*;Achasov, M. N.;Ahmed, S.;Ai, X. C.;Albayrak, O.;...
通讯作者:
Ablikim, M.
作者机构:
[Yu, B. X.; Hu, T.; Sun, Z. J.; Guo, R. P.; Ning, Z.; Wen, S. P.; Sun, G. X.; Ma, M. M.; Min, J.; Zhao, Ling; Ai, X. C.; Zhu, Z. A.; Xu, G. F.; Wang, K.; Heng, Y. K.; Ji, Q.; Zhang, J. W.; Rong, G.; Li, H. J.; Wang, Y. F.; Wang, L. L.; Jin, D. P.; Xiu, Q. L.; Lu, Y.; Ouyang, Q.; Sun, J. F.; Ji, X. B.; Zhang, J. Q.; Qian, S.; Wang, P.; Dong, M. Y.; Prasad, V.; Fang, S. S.; Chang, J. F.; Liu, Z. A.; Sun, S. S.; Fu, C. D.; Zhang, Y.; Lou, X. C.; Wang, Z. G.; Zhang, B. X.; Sun, X. H.; Cao, G. F.; Xu, J. J.; Wu, L. H.; Zhao, Y. B.; Gao, Q.; Zheng, J. P.; Zhang, B. Y.; Jiang, X. S.; Gu, M. H.; Lu, Y. P.; Dong, L. Y.; Zhao, G.; Wu, L. J.; Yuan, Y.; Wu, Z.; Fang, Y.; Luo, X. L.; Ji, X. L.; Li, H. B.; Zhuang, J.; Li, J. C.; Guo, A. Q.; Zhang, J. Y.; Guo, Y.; Wang, L. S.; Yin, J. H.; Jin, S.; Song, W. M.; Zhang, J. Z.; He, K. L.; Chen, G.; Chen, J. C.; Ablikim, M.; Liu, C. X.; Zhu, K.; Qin, X. S.; Liu, H. H.; Wang, W.; Bai, J. Z.; Zhao, J. Z.; Mao, Z. P.; Zhao, Q.; Lu, J. G.; Liu, P. L.; Chen, Y. B.; Niu, S. L.; Liu, J.; Wang, Z.; Liu, Fang; Zhao, J. Y.; Dong, J.; Zhang, C. C.; Zhang, D. H.; Guan, Y. H.; Yuan, C. Z.; Zhang, H. Y.; Chen, M. L.; Ma, T.; Hou, Z. L.; Sun, Y. Z.; Liu, B. J.; Min, T. J.; 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.; Deng, Z. Y.; Ma, Q. M.; Wang, Z. Y.; Zhao, T. C.; Zhao, Q. W.; Cai, X.; Xu, L.; Zhang, Y. H.; Zhu, S.; An, F. F.; Zou, J. H.; Zhang, J. L.; Liu, J. Y.; Li, W. G.; Niu, X. Y.; Mo, X. H.; Zhou, L.; Fang, J.; Shen, X. Y.; Zhu, Y. S.; Li, X. N.; Ma, X. Y.; Hu, H. M.; Gong, W. X.; Wang, P. L.; Zhang, J.; Duan, P. F.; Hu, Y.; Kang, X. L.; Zhang, L.; Li, F.; Zhang, K.; Zhou, X. Y.; Tang, X.; Chen, X.; Yang, H. X.; Qin, Z. H.; Xiao, D.; Li, G.; Ping, R. G.; Qiu, J. F.; Zhao, J. W.; Zhang, J. J.; Dai, H. L.; Li, W. D.] Inst High Energy Phys, Beijing 100049, Peoples R China.
[Qi, H. R.; Li, Y. B.; Shen, C. P.] Beihang Univ, Beijing 100191, Peoples R China.
[Li, Lei] Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China.
[Musiol, P.; Heinsius, F. H.; Pelizaeus, M.; Zhu, S. H.; Kopf, B.; Albrecht, M.; Holtmann, T.; Schnier, C.; Wiedner, U.; Held, T.] Ruhr Univ Bochum, D-44780 Bochum, Germany.
[Ke, B. C.; Briere, R. A.; Albayrak, O.; Bennett, J. V.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
通讯机构:
[Ablikim, M.] I
Inst High Energy Phys, Beijing 100049, Peoples R China.
语种:
英文
期刊:
PHYSICAL REVIEW LETTERS
ISSN:
0031-9007
年:
2017
卷:
118
期:
9
页码:
092001
基金类别:
National Key Basic Research Program of ChinaNational Basic Research Program of China [2015CB856700]; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [11235011, 11322544, 11335008, 11425524]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility ProgramChinese Academy of Sciences; CAS Center for Excellence in Particle Physics (CCEPP); Collaborative Innovation Center for Particles and Interactions (CICPI); NSFCNational Natural Science Foundation of China (NSFC) [U1232201, U1332201, U1532257, U1532258, 11275266]; CASChinese Academy of Sciences [U1232201, U1332201, U1532257, U1532258, KJCX2-YW-N29, KJCX2-YW-N45]; 100 Talents Program of CASChinese Academy of Sciences; National 1000 Talents Program of China; INPAC; Shanghai Key Laboratory for Particle Physics and Cosmology; German Research Foundation DFG under Collaborative Research CenterGerman Research Foundation (DFG) [CRC 1044, FOR 2359]; Seventh Framework Programme of the European Commission under Marie Curie International Incoming Fellowship [627240]; Istituto Nazionale di Fisica Nucleare, ItalyIstituto Nazionale di Fisica Nucleare (INFN); Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) [530-4CDP03]; Ministry of Development of TurkeyTurkiye Cumhuriyeti Kalkinma Bakanligi [DPT2006K-120470]; Swedish Resarch Council; U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-FG02-05ER41374, DE-SC-0010504, DE-SC0012069, DESC0010118]; U.S. National Science FoundationNational Science Foundation (NSF); University of Groningen (RuG), Darmstadt; Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt; WCU Program of National Research Foundation of Korea [R32-2008-000-10155-0]
机构署名:
本校为其他机构
摘要:
The cross section for the process e+e-→π+π-J/ψ is measured precisely at center-of-mass energies from 3.77 to 4.60 GeV using 9 fb-1 of data collected with the BESIII detector operating at the BEPCII storage ring. Two resonant structures are observed in a fit to the cross section. The first resonance has a mass of (4222.0±3.1±1.4) MeV/c2 and a width of (44.1±4.3±2.0) MeV, while the second one has a mass of (4320.0±10.4±7.0) MeV/c2 and a width of (101.4-19.7+25.3±10.2) MeV, where the first errors are statistical and second ones are syst...

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