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Measurement of the branching fraction for psi(3770) -> gamma chi c0

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成果类型:
期刊论文
作者:
Ablikim, M.;Achasov, M. N.;Ai, X. C.;Albayrak, O.;Albrecht, M.;...
通讯作者:
Ma, H. L.
作者机构:
[Yu, B. X.; Hu, T.; Sun, Z. J.; Ning, Z.; Wen, S. P.; Sun, G. X.; 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.; Wang, Y. F.; Wang, L. L.; Jin, D. P.; Xiu, Q. L.; Lu, Y.; Ouyang, Q.; Ji, X. B.; Zhang, J. Q.; Qian, S.; Dong, M. Y.; Prasad, V.; Fang, S. S.; Chang, J. F.; Liu, Z. A.; Wang, R.; Sun, S. S.; Fu, C. D.; Zhang, Y.; Lou, X. C.; Wang, Z. G.; Zhang, B. X.; Cao, G. F.; 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.; 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.; 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.; 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.; Chen, H. Y.; Shen, C. P.; Gao, X. Y.] Beihang Univ, Beijing 100191, Peoples R China.
[Li, Lei] Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China.
[Pelizaeus, M.; Kopf, B.; Albrecht, M.; 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:
[Ma, H. L.] I
Inst High Energy Phys, Beijing 100049, Peoples R China.
语种:
英文
期刊:
Physics Letters B
ISSN:
0370-2693
年:
2016
卷:
753
页码:
103-109
基金类别:
National Key Basic Research Program of ChinaNational Basic Research Program of China [2009CB825204, 2015CB856700]; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [10935007, 11125525, 11235011, 11305180, 11322544, 11335008, 11425524]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility ProgramChinese Academy of Sciences; NSFCNational Natural Science Foundation of China (NSFC) [11179007, U1232201, U1332201]; CASChinese Academy of Sciences [11179007, U1232201, U1332201, KJCX2-YW-N29, KJCX2-YW-N45]; 100 Talents Program of CASChinese Academy of Sciences; CAS Center for Excellence in Particle Physics (CCEPP); INPAC; Shanghai Key Laboratory for Particle Physics and Cosmology; German Research Foundation DFG under Collaborative Research CenterGerman Research Foundation (DFG) [CRC-1044]; Istituto Nazionale di Fisica Nucleare, ItalyIstituto Nazionale di Fisica Nucleare (INFN); Ministry of Development of TurkeyTurkiye Cumhuriyeti Kalkinma Bakanligi [DPT2006K-120470]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [14-07-91152]; U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-FG02-04ER41291, DE-FG02-05ER41374, DE-FG02-94ER40823, DESC0010118]; U.S. National Science FoundationNational Science Foundation (NSF); University of Groningen (RuG); Helmholtzzentrum fur Schwerionenforschung GmbH (GSI), Darmstadt; WCU Program of National Research Foundation of Korea [R32-2008-000-10155-0]
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摘要:
By analyzing a data set of 2.92 fb(-1) of e(+) e(-) collision data taken at root s = 3.773 GeVand 106.41 x 10(6) psi(3686) decays taken at root s = 3.686 GeVwith the BESIII detector at the BEPCII collider, we measure the branching fraction and the partial decay width for psi(3770)->gamma chi c0 to be B(psi(3770)->gamma chi c0) = (6.88 +/- 0.28 +/- 0.67) x 10(-3) and Gamma[psi(3770)->gamma chi c0] = (187 +/- 8 +/- 19) keV, respectively. These are the most precise measuremen...

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