Systematic analysis of the proton mass radius based on photoproduction of vector charmoniums

doi:10.1103/PhysRevD.105.096033

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	Systematic analysis of the proton mass radius based on photoproduction of vector charmoniums
	Wang, Xiao-Yun 1,2; Zeng, Fancong 1; Wang, Quanjin 1
刊名	PHYSICAL REVIEW D
	2022-05-27
卷号	105 期号:9
ISSN号	2470-0010
DOI	10.1103/PhysRevD.105.096033
英文摘要	In this work, the cross section of the reaction ??p ??? V(J/??; ??(2S))p from the production threshold to medium energy is studied and systematically analyzed within two gluon exchange model. The obtained numerical results are in agreement with experimental data and other theoretical predictions. Under the assumption of the scalar form factor of dipole form, the value of proton mass radius is calculated as 0.55 ?? 0.09 fm and 0.77 ?? 0.12 fm from the fit to the predicted J/?? and ??(2S) differential cross section, respectively. Finally, the average value of proton mass radius is estimated to be (R2m) = 0.67 ?? 0.11 fm. Moreover, one finds that extracting mass radius from the near-threshold differential cross section of heavy quarkoniums is always affected by large ItImin. These obtained results may provide important theoretical reference for the understanding of nucleon structure and future relevant experiments.
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000809432500013
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158888]
专题	理学院兰州理工大学
作者单位	1.Lanzhou Univ Technol, Dept Phys, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ, Lanzhou Ctr Theoret Phys, Key Lab Theoret Phys Gansu Prov, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiao-Yun,Zeng, Fancong,Wang, Quanjin. Systematic analysis of the proton mass radius based on photoproduction of vector charmoniums[J]. PHYSICAL REVIEW D,2022,105(9).
APA	Wang, Xiao-Yun,Zeng, Fancong,&Wang, Quanjin.(2022).Systematic analysis of the proton mass radius based on photoproduction of vector charmoniums.PHYSICAL REVIEW D,105(9).
MLA	Wang, Xiao-Yun,et al."Systematic analysis of the proton mass radius based on photoproduction of vector charmoniums".PHYSICAL REVIEW D 105.9(2022).