Hard Exclusive Pion Leptoproduction

被引：7
作者：
Kroll, Peter [1 ]
机构：
[1] Univ Wuppertal, Fachbereich Phys, D-42097 Wuppertal, Germany
来源：
FEW-BODY SYSTEMS | 2016年 / 57卷 / 11期
关键词：
GENERALIZED PARTON DISTRIBUTIONS; HELICITY FLIP; ELECTROPRODUCTION; QUARK; TRANSVERSITY; NUCLEON; MESONS; QCD;
D O I：
10.1007/s00601-016-1146-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this talk it is reported on an analysis of hard exclusive leptoproduction of pions within the handbag approach. It is argued that recent measurements of this process performed by HERMES and CLAS clearly indicate the occurrence of strong contributions from transversely polarized photons. Within the handbag approach such transitions are described by the transversity GPDs accompanied by twist-3 pion wave functions. It is shown that the handbag approach leads to results on cross sections and single-spin asymmetries in fair agreement with experiment. Predictions for other pseudoscalar meson channels are also briefly discussed.
引用
收藏
页码：1041 / 1050
页数：10
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