Two-photon exchange at low Q2

被引：39

作者：

Borisyuk, Dmitry ^{[1
]}

Kobushkin, Alexander ^{[1
]}

机构：

[1] Bogolyubov Inst Theoret Phys, UA-03143 Kiev, Ukraine

来源：

PHYSICAL REVIEW C | 2007年 / 75卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.75.038202

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 studied two-photon exchange for elastic electron-proton scattering at low Q(2). Compact approximate formulas for the amplitudes were obtained. Numerical calculations were done for Q(2)<= 0.1 GeV2 with several realistic form factor parametrizations, yielding similar results. They indicate that the corrections to the magnetic form factor can visibly affect the cross-section and proton radii. For low-Q(2) electron-neutron scattering two-photon exchange corrections were shown to be negligibly small.

引用

页数：4

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