REEXAMINATION OF THE PERTURBATIVE PION FORM-FACTOR WITH SUDAKOV SUPPRESSION

被引：21

作者：

CAO, FG ^{[1
]}

HUANG, T ^{[1
]}

LUO, CW ^{[1
]}

机构：

[1] CCAST,WORLD LAB,BEIJING 100080,PEOPLES R CHINA

来源：

PHYSICAL REVIEW D | 1995年 / 52卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.52.5358

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The perturbative pion form factor with Sudakov suppression is reexamined. To guarantee the reliability of the perturbative calculations we suggest that the running coupling constant should be frozen rat alpha(s)(t = [k(T)]) and [k(T)] is the average transverse momentum which can be determined by the pionic wave function. In addition we correct the previous calculations about the Sudakov suppression factor which plays an important role in the perturbative calculations for the poin form factor.

引用

页码：5358 / 5361

页数：4

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