Overview of Recent Theoretical Work on Two-Photon Exchange

被引:0
作者
Blunden, Peter G. [1 ]
机构
[1] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada
来源
INTERNATIONAL WORKSHOP ON PHYSICS WITH POSITRONS AT JEFFERSON LAB | 2018年 / 1970卷
基金
加拿大自然科学与工程研究理事会;
关键词
RADIATIVE-CORRECTIONS; RATIO;
D O I
10.1063/1.5040197
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
In this contribution I give an overview of recent progress in theoretical calculations of two-photon exchange (TPE) effects in elastic electron-proton scattering. TPE effects are relevant for extractions of proton form factors at high Q(2), and of the proton radius at very low Q2. Recent experiments to directly measure hard TPE effects by comparing positron and electron scattering are discussed from a theoretical perspective.
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页数:5
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