Tensor form factors of nucleon in QCD

被引：15

作者：

Erkol, Guray ^{[1
]}

Ozpineci, Altug ^{[2
]}

机构：

[1] Ozyegin Univ, Lab Fundamental Res, TR-34662 Uskudar Istanbul, Turkey

[2] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey

来源：

PHYSICS LETTERS B | 2011年 / 704卷 / 05期

关键词：

Nucleon tensor form factors; Light-cone QCD sum rules; GENERALIZED PARTON DISTRIBUTIONS; TRANSVERSE POLARIZATION; RESONANCE PHYSICS; SUM-RULES; ELECTROPRODUCTION; PHOTOPRODUCTION; DECOMPOSITION; COLLINS; CHARGE; QUARKS;

D O I：

10.1016/j.physletb.2011.09.089

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We extract the isovector tensor nucleon form factors, which play an important role in understanding the transverse spin structure of the nucleon when related to the quark helicity-flip generalized parton distributions via their first moments. We employ the light-cone QCD sum rules to leading order in QCD and include distribution amplitudes up to twist 6 in order to calculate the three tensor form factors H-T. E-T and (H) over bar (T). Our results agree well with those from other approaches in the low and high momentum-transfer regions. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：551 / 558

页数：8

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