Low-energy analysis of the nucleon electromagnetic form factors

被引：188
|
作者：
Kubis, B [1 ]
Meissner, UG [1 ]
机构：
[1] Forschungszentrum Julich, Inst Kernphy Theorie, D-52425 Julich, Germany
来源：
NUCLEAR PHYSICS A | 2001年 / 679卷 / 3-4期
关键词：
nucleon electromagnetic form factors; chiral perturbation theory;
D O I：
10.1016/S0375-9474(00)00378-X
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 analyze the electromagnetic form factors of the nucleon to fourth order in relativistic baryon chiral perturbation theory. We employ the recently proposed infrared regularization scheme and show that the convergence of the chiral expansion is improved as compared to the heavy-fermion approach. We also discuss the inclusion of vector mesons and obtain an accurate description of ail four-nucleon form factors for momentum transfer squared up to Q(2) similar or equal to 0.4 GeV(2). (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：698 / 734
页数：37
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