Cross-channel analysis of quark and gluon generalized parton distributions with helicity flip

被引：5
|
作者：
Pire, B. [1 ]
Semenov-Tian-Shansky, K. [2 ]
Szymanowski, L. [3 ]
Wallon, S. [4 ,5 ]
机构：
[1] Ecole Polytech, CNRS, CPhT, F-91128 Palaiseau, France
[2] Univ Liege, IFPA, Dept AGO, B-4000 Liege, Belgium
[3] Natl Ctr Nucl Res NCBJ, Warsaw, Poland
[4] Univ Paris 11, CNRS, LPT, F-91405 Orsay, France
[5] Univ Paris 06, Fac Phys, F-75252 Paris, France
来源：
EUROPEAN PHYSICAL JOURNAL A | 2014年 / 50卷 / 05期
关键词：
HARD EXCLUSIVE ELECTROPRODUCTION; VIRTUAL COMPTON-SCATTERING; TRANSVERSE POLARIZATION; DUAL PARAMETRIZATION; DECOMPOSITION; GPDS;
D O I：
10.1140/epja/i2014-14090-1
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：
Quark and gluon helicity flip generalized parton distributions (GPDs) address the transversity quark and gluon structure of the nucleon. In order to construct a theoretically consistent parametrization of these hadronic matrix elements, we work out the set of combinations of those GPDs suitable for the SO(3) partial wave (PW) expansion in the cross-channel. This universal result will help to build up a flexible parametrization of these important hadronic non-perturbative quantities, using, for instance, the approaches based on the conformal PW expansion of GPDs such as the Mellin-Barnes integral or the dual parametrization techniques.
引用
收藏
页码：1 / 15
页数：15
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