Theoretical constraints and systematic effects in the determination of the proton form factors
文献类型：期刊论文
| 作者 | Lorenz, IT; Meissner, UG; Hammer, HW; Dong, YB; Dong YB(董宇兵)
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2015 |
| 卷号 | 91期号:1页码:14023 |
| 英文摘要 | 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. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 收录类别 | SCI |
| WOS记录号 | WOS:000348678900001 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228131]  |
| 专题 | 高能物理研究所_理论物理室 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：高能物理研究所
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