Generalized parton distributions of the nucleon in constituent quark models

被引：1
作者：
Boffi, S [1 ]
Pasquini, B
Traini, M
机构：
[1] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy
[2] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy
[3] ECT, Villazzano, Trento, Italy
[4] Univ Trent, Dipartimento Fis, I-38050 Trento, Italy
[5] Ist Nazl Fis Nucl, Grp Collegato Trento, I-38050 Trento, Italy
来源：
NUCLEAR PHYSICS A | 2005年 / 755卷
关键词：
D O I：
10.1016/j.nuclphysa.2005.03.099
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：
Generalized parton distributions (GPDs) are studied at the hadronic (nonperturbative) scale within different assumptions based on a relativistic constituent quark model. In particular, by means of a meson-cloud model we investigate the role of nonperturbative antiquark degrees of freedom and the valence quark contribution. A QCD evolution of the obtained GPDs is used to add perturbative effects and to investigate the GPDs' sensitivity to the nonperturbative ingredients of the calculation at larger (experimental) scale.
引用
收藏
页码：549C / 552C
页数：4
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