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Measurement of proton electromagnetic form factors in the time-like region using initial state radiation at BESIII

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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.;...
作者机构:
[Yu, B. X.; Dai, X. C.; Wang, X. F.; Yu, G.; Li, Xiaoyu; Hu, T.; Sun, Z. J.; Ning, Z.; Wen, S. P.; Shi, X.; Sun, G. X.; Kolcu, O. B.; Ma, M. M.; Min, J.; Zhao, Ling; Zhu, Z. A.; Xu, G. F.; Wang, K.; Zhou, L. P.; Heng, Y. K.; Ji, Q.; Zhang, J. W.; Rong, G.; Guan, C. Y.; Zhou, Q.; Wang, Y. F.; Wang, L. L.; Jin, D. P.; Xiu, Q. L.; Lu, Y.; Ouyang, Q.; Kurth, M.; Zhang, A. Q.; Ji, X. B.; Qian, S.; Dong, M. Y.; Zhang, Jiawei; Fang, S. S.; Chang, J. F.; Wang, Zongyuan; Liu, Z. A.; Ke, B. C.; Liu, X. Y.; Wu, J. F.; Sun, S. S.; Fu, C. D.; Lou, X. C.; Wang, Z. G.; Zhang, B. X.; Fu, Y.; Sun, X. H.; Xing, T. Y.; Cao, G. F.; Xiao, Y. J.; 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.; Yang, Yifan; Yuan, Y.; Lu, X. L.; 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; Huang, Y. P.; Liao, L. Z.; Zhang, J. Y.; Wang, L. S.; Yin, J. H.; Liu, Huanhuan; Song, W. M.; Zhang, J. Z.; He, K. L.; Chen, G.; Xiong, X. A.; Chen, J. C.; Ablikim, M.; Liu, C. X.; Chang, W. L.; Zhu, K.; Kurth, M. G.; Zhao, J. Z.; Mao, Z. P.; Zhao, Q.; Xiao, S. Y.; Lu, J. G.; Liu, P. L.; Jing, M. Q.; Sun, H. K.; Chen, Y. B.; Niu, S. L.; Wang, Z.; Liu, Fang; Zhao, J. Y.; Dong, J.; Zhang, C. C.; Liu, K.; Wang, H. P.; Zhang, D. H.; Yuan, C. Z.; Tang, G. Y.; Zhang, H. Y.; Chen, M. L.; Hou, G. Y.; Shen, H. F.; Hou, Z. L.; Sun, Y. Z.; Liu, B. J.; Li, Ke; Zhu, K. J.; Liu, H. M.; Ma, H. L.; Sun, T.; Ye, M.; Xie, Y. G.; Lu, J. D.; 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.; Xu, L.; Zhang, Y. H.; Ma, R. Q.; An, F. F.; Shi, R. S.; Zou, J. H.; Zhang, Yao; Liu, J. Y.; Li, W. G.; Wang, Y. Q.; Mo, X. H.; Zhou, L.; Fang, J.; Ma, X. X.; Shen, X. Y.; Zhu, Y. S.; Xie, Y. H.; Sun, Z. T.; Liu, T.; Ma, X. Y.; Hu, H. M.; Gong, W. X.; Wang, P. L.; Zhang, J.; Xu, W.; Hu, Y.; Wang, B.; Wang, Meng; Zhang, Jianyu; Li, F.; Zhang, K.; Pathak, A.; 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.; Nisar, S.; Shen, C. P.; Gu, S.; Yuan, L.; Qi, T. Y.] Beihang Univ, Beijing 100191, Peoples R China.
[Li, Lei; Sarantsev, A.] Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China.
[Jaeger, S.; Fritsch, M.; Heinsius, F. H.; Zhang, J. Q.; Weber, T.; Mustafa, A.; Kuessner, M.; Pitka, A.; Yang, H. J.; Richter, M.; Pelizaeus, M.; Kopf, B.; Keshk, I. K.; Wollenberg, L.; Qin, X. S.; Albrecht, M.; Holtmann, T.; Sowa, C.; Schnier, C.; Deboer, R. E.; Feldbauer, F.; Wiedner, U.; Kuemmel, M.; Li, J. Q.; Held, T.; Maldaner, S.] Bochum Ruhr Univ, D-44780 Bochum, Germany.
[Khan, T.; Yang, H. J.; Briere, R. A.; Bennett, J. V.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
语种:
英文
关键词:
Proton;Electromagnetic form factors;Initial state radiation;BESIII
期刊:
Physics Letters B
ISSN:
0370-2693
年:
2021
卷:
817
基金类别:
National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [11625523, 11635010, 11735014, 11822506, 11835012, 11935015, 11935016, 11935018, 11961141012]; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility ProgramChinese Academy of Sciences; Joint Large-Scale Scientific Facility Funds of the NSFC [U1732263, U1832207]; Joint Large-Scale Scientific Facility Funds of the CAS [U1732263, U1832207]; CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-SLH003, QYZDJ-SSW-SLH040]; 100 Talents Program of CASChinese Academy of Sciences; Shanghai Key Laboratory for Particle Physics and Cosmology; ERCEuropean Research Council (ERC)European Commission [758462]; German Research Foundation DFGGerman Research Foundation (DFG) [443159800, CRC 1044, FOR 2359, GRK 214]; Istituto Nazionale di Fisica Nucleare, ItalyIstituto Nazionale di Fisica Nucleare (INFN); Ministry of Development of TurkeyTurkiye Cumhuriyeti Kalkinma Bakanligi [DPT2006K-120470]; National Science and Technology fund; Olle Engkvist Foundation [200-0605]; STFC (United Kingdom)UK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC); Knut and Alice Wallenberg Foundation (Sweden)Knut & Alice Wallenberg Foundation [2016.0157]; Royal Society, UKRoyal Society of London [DH140054, DH160214]; Swedish Research CouncilSwedish Research CouncilEuropean Commission; U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-FG02-05ER41374, DE-SC-0012069]; INPAC
机构署名:
本校为其他机构
摘要:
The electromagnetic process e(+)e(-) -> p (p) over bar over bar is studied with the initial-state-radiation technique using 7.5 fb(-1) of data collected by the BESIII experiment at seven energy points from 3.773 to 4.600 GeV. The Born cross section and the effective form factor of the proton are measured from the production threshold to 3.0 GeV/c(2) using the p (p) over bar over bar invariant-mass spectrum. The ratio of electric and magnetic form factors of the proton is determined from the analysis of the proton-helicity angular d...

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