IMPROVED PERTURBATIVE QCD ANALYSIS OF THE PION-PHOTON TRANSITION FORM-FACTOR

被引：48

作者：

ONG, S

机构：

[1] Collège de France, Institut National de Physique Nucléaire et de Physique des Particules, Centre National de la Recherche Scientifique, F-75231 Paris Cedex 05, 11, place Marcelin-Berthelot

来源：

PHYSICAL REVIEW D | 1995年 / 52卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.52.3111

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We reexamine the transition form factor in pi degrees coupling to gamma*gamma* in the framework of a perturbative QCD approach based on the modified factorization formula. Sudakov suppression is less important here than in other exclusive channels and can be used to check the hard-scattering approach of Brodsky and Lepage in this process.

引用

页码：3111 / 3114

页数：4

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