Studying hadronic structure of the photon in lattice QCD

被引：39

作者：

Ji, XD ^{[1
]}

Jung, CW ^{[1
]}

机构：

[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.86.208

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that the matrix element of a local quark-gluon operator in the photon state, [gamma (k lambda)\(O) over cap\gamma (k lambda)], can be calculated in lattice QCD. The result is generalized to other quantities involving spacelike photons, including the transition form factor gamma gamma* --> pi (0) and the virtual-photon-nucleon Compton amplitude [gamma *N \ gamma *N] which can be used to define the generalized Drell-Hearn-Gerasimov and Bjorken sum rules.

引用

页码：208 / 211

页数：4

共 15 条

[1] FLAVOR-SINGLET G(A) FROM LATTICE QCD [J].