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Theoretical constraints and systematic effects in the determination of the proton form factors
Lorenz, IT; Meissner, UG; Hammer, HW; Dong, YB; Dong YB(董宇兵)
2015
发表期刊PHYSICAL REVIEW D
卷号91期号:1页码:14023
文章类型Article
摘要We calculate the two-photon exchange corrections to electron-proton scattering with nucleon and Delta intermediate states. The results show a dependence on the elastic nucleon and nucleon-Delta-transition form factors used as input which leads to significant changes compared to previous calculations. We discuss the relevance of these corrections and apply them to the most recent and precise data set and world data from electron-proton scattering. Using this, we show how the form factor extraction from these data is influenced by the subsequent inclusion of physical constraints. The determination of the proton charge radius from scattering data is shown to be dominated by the enforcement of a realistic spectral function. Additionally, the third Zemach moment from the resulting form factors is calculated. The obtained radius and Zemach moment are shown to be consistent with Lamb shift measurements in muonic hydrogen.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.91.014023
收录类别SCI
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000348678900001
引用统计
被引频次:37[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228131
专题理论物理室
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GB/T 7714
Lorenz, IT,Meissner, UG,Hammer, HW,et al. Theoretical constraints and systematic effects in the determination of the proton form factors[J]. PHYSICAL REVIEW D,2015,91(1):14023.
APA Lorenz, IT,Meissner, UG,Hammer, HW,Dong, YB,&董宇兵.(2015).Theoretical constraints and systematic effects in the determination of the proton form factors.PHYSICAL REVIEW D,91(1),14023.
MLA Lorenz, IT,et al."Theoretical constraints and systematic effects in the determination of the proton form factors".PHYSICAL REVIEW D 91.1(2015):14023.
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