Estimating proton radius and proportion of other non-perturbative components in the proton by the maximum entropy method

doi:10.1088/1674-1137/41/11/113103

	Estimating proton radius and proportion of other non-perturbative components in the proton by the maximum entropy method
	Han, Cheng-Dong 1,2; Chen, Xu-Rong2
刊名	CHINESE PHYSICS C
	2017-11-01
卷号	41 页码:5
关键词	proton radius Maximum Entropy Method other non-perturbative components
ISSN号	1674-1137
DOI	10.1088/1674-1137/41/11/113103
英文摘要	In this paper, we apply the Maximum Entropy Method to estimate the proton radius and determine the valence quark distributions in the proton at extremely low resolution scale Q(0)(2). Using the simplest functional form of the valence quark distribution and standard deviations of quark distribution functions in the estimation of the proton radius, we obtain a quadratic polynomial for the relationship between the proton radius and the momentum fraction of other non-perturbative components in the proton. The proton radii are approximately equal to the muonic hydrogen experimental result r(p) = 0.841 fm and the CODATA analysis r(p) = 0.877 fm when the other non-perturbative components account for 17.5% and 22.3% respectively. We propose "ghost matter" to explain the difference in other non-perturbative components (4.8%) that the electron can detect.
资助项目	National Basic Research Program of China (973 Program)[2014CB845406]
WOS关键词	DEEP-INELASTIC-SCATTERING ; BREAKING
WOS研究方向	Physics
语种	英语
出版者	CHINESE PHYSICAL SOC
WOS记录号	WOS:000414482100004
资助机构	National Basic Research Program of China (973 Program)
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/45929]
专题	近代物理研究所_实验物理中心
通讯作者	Chen, Xu-Rong
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Han, Cheng-Dong,Chen, Xu-Rong. Estimating proton radius and proportion of other non-perturbative components in the proton by the maximum entropy method[J]. CHINESE PHYSICS C,2017,41:5.
APA	Han, Cheng-Dong,&Chen, Xu-Rong.(2017).Estimating proton radius and proportion of other non-perturbative components in the proton by the maximum entropy method.CHINESE PHYSICS C,41,5.
MLA	Han, Cheng-Dong,et al."Estimating proton radius and proportion of other non-perturbative components in the proton by the maximum entropy method".CHINESE PHYSICS C 41(2017):5.