From quarks and gluons to baryon form factors

被引：24
|
作者：
Eichmann, Gernot [1 ]
机构：
[1] Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany
来源：
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS | 2012年 / 67卷 / 02期
基金：
奥地利科学基金会;
关键词：
Nucleon; Delta; Form factors; Dyson-Schwinger equations; Faddeev equations;
D O I：
10.1016/j.ppnp.2011.12.024
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：
I briefly summarize recent results for nucleon and Delta(1232) electromagnetic, axial and transition form factors in the Dyson-Schwinger approach. The calculation of the current diagrams from the quark-gluon level enables a transparent discussion of common features such as: the implications of dynamical chiral symmetry breaking and quark orbital angular momentum, the timelike structure of the form factors, and their interpretation in terms of missing pion-cloud effects. (C) 2012 Elsevier B.V. All rights reserved.
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页码：234 / 238
页数：5
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