Subtracted dispersion relation formalism for the two-photon exchange correction to elastic electron-proton scattering: Comparison with data

被引：54

作者：

Tomalak, O. ^{[1
,2
,3
]}

Vanderhaeghen, M. ^{[1
,2
]}

机构：

[1] Johannes Gutenberg Univ Mainz, Inst Kernphys, Mainz, Germany

[2] Johannes Gutenberg Univ Mainz, PRISMA Cluster Excellence, D-55122 Mainz, Germany

[3] Taras Shevchenko Natl Univ Kyiv, Dept Phys, Kiev, Ukraine

来源：

EUROPEAN PHYSICAL JOURNAL A | 2015年 / 51卷 / 02期

关键词：

LAMB SHIFT; MUONIC-HYDROGEN; GENERAL-THEORY; CROSS-SECTION; RATIO; COLLISIONS; PARTICLES; PHYSICS; EP;

D O I：

10.1140/epja/i2015-15024-1

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We apply a subtracted dispersion relation formalism with the aim to improve predictions for the two-photon exchange corrections to elastic electron-proton scattering observables at finite momentum transfers. We study the formalism on the elastic contribution, and make a detailed comparison with existing data for unpolarized cross sections as well as polarization transfer observables.

引用

页码：1 / 20

页数：21

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