Linking generalized parton distributions to constituent quark models

被引：92
|
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, Povo, Trento, Italy
[5] Ist Nazl Fis Nucl, Sez Trento, Trento, Italy
来源：
NUCLEAR PHYSICS B | 2003年 / 649卷 / 1-2期
关键词：
generalized parton distributions; constituent quark models;
D O I：
10.1016/S0550-3213(02)01016-7
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：
The link between the nucleon generalized parton distributions and the non-diagonal one-body density matrix in momentum space is studied. Attention is focused on the region where quark generalized parton distributions (GPDs) describe emission and reabsorption of a single active quark by the target nucleon. The correct covariant connection with wave functions used in any constituent quark model is established. Results obtained with different constituent quark models are presented for the unpolarized quark GPDs. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：243 / 262
页数：20
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