Evidence of a Resonant Structure in the e^{+}e^{-}-->pi^{+}D^{0}D^{*-} Cross Section between 4.05 and 4.60 GeV.

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成果类型：

期刊论文

作者：

Ablikim, M.;Achasov, M. N.;Ahmed, S.;Albrecht, M.;Amoroso, A.;...

通讯作者：

Wang, B.

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; 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.; Ji, X. B.; Zhang, J. Q.; Qian, S.; Wang, P.; Dong, M. Y.; Fang, S. S.; Chang, J. F.; Wang, Zongyuan; Liu, Z. A.; Sun, S. S.; Fu, C. D.; Lou, X. C.; Wang, Z. G.; Zhang, B. X.; Sun, X. H.; Cao, G. F.; Xiao, Y. J.; 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.; Yang, Yifan; Yuan, Y.; Wu, Z.; Fang, Y.; Luo, X. L.; Ji, X. L.; Li, H. B.; Zhuang, J.; Li, J. C.; Guo, A. Q.; Zhang, Yang; Zhang, J. Y.; Wang, L. S.; Yin, J. H.; Jin, S.; Liu, Huanhuan; Zhang, J. Z.; He, K. L.; Chen, G.; Xiong, X. A.; Chen, J. C.; Ablikim, M.; Liu, C. X.; Zhu, K.; Zhao, J. Z.; Mao, Z. P.; Zhao, Q.; Lu, J. G.; Liu, P. L.; 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.; 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.; Cai, X.; Xu, L.; Zhang, Y. H.; Zhu, S.; An, F. F.; Zou, J. H.; Zhang, J. L.; Zhang, Yao; 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.; Wang, B.; Kang, X. L.; Wang, Meng; Li, F.; Zhang, K.; Zhou, X. Y.; Tang, X.; Yang, H. X.; Qin, Z. H.; Xiao, D.; 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.; Qi, H. R.; Shen, C. P.] Beihang Univ, Beijing 100191, Peoples R China.

[Li, Lei] Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China.

[Kuhlmann, M.; Heinsius, F. H.; Mustafa, A.; Kuessner, M.; Leiber, S.; Richter, M.; Pelizaeus, M.; Kopf, B.; Qin, X. S.; Albrecht, M.; Holtmann, T.; Sowa, C.; Schnier, C.; Wiedner, U.; Kuemmel, M.; Held, T.] Bochum Ruhr Univ, D-44780 Bochum, Germany.

[Ke, B. C.; Bennett, J., V; Briere, R. A.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.

通讯机构：

[Wang, B.] I

Inst High Energy Phys, Beijing 100049, Peoples R China.

语种：

英文

期刊：

PHYSICAL REVIEW LETTERS

ISSN：

0031-9007

年：

2019

卷：

122

期：

页码：

102002

DOI：

10.1103/PhysRevLett.122.102002

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. 11521505, No. 11075174, No. 11121092, No. 11235011, No. 11335008, No. 11405046, No. 11425524, No. 11475185, No. 11575077, No. 11605042, No. 11625523, and No. 11635010; Chinese Academy of Science Focused Science Grant; 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. U1332201, No. U1532257, No. U1504112, No. U1532258, and No. U1632109; CAS under Contracts No. KJCX2-YW-N29 and No. KJCX2-YW-N45; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; National 1000 Talents Program of China; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; German Research Foundation DFG under Collaborative Research Center CRC 1044, FOR 2359; 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 Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-0010118, No. DE-SC-0010504, and No. DE-SC-0012069; University of Groningen (RuG) and the Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt; WCU Program of National Research Foundation of Korea under Contract No. R32-2008-000-10155-0; and China Postdoctoral Science Foundation.

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摘要：

The cross section of the process e+e-→π+D0D∗- for center-of-mass energies from 4.05 to 4.60 GeV is measured precisely using data samples collected with the BESIII detector operating at the BEPCII storage ring. Two enhancements are clearly visible in the cross section around 4.23 and 4.40 GeV. Using several models to describe the dressed cross section yields stable parameters for the first enhancement, which has a mass of 4228.6±4.1±6.3 MeV/c2 and a width of 77.0±6.8±6.3 MeV, where the first uncertainties are statistical and the second on...

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Evidence of a Resonant Structure in the e^{+}e^{-}-->pi^{+}D^{0}D^{*-} Cross Section between 4.05 and 4.60 GeV.

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