TIME-LIKE FORM-FACTORS AT HIGH-ENERGY

被引：63

作者：

GOUSSET, T ^{[1
]}

PIRE, B ^{[1
]}

机构：

[1] ECOLE POLYTECH,CTR PHYS THEOR,F-91128 PALAISEAU,FRANCE

来源：

PHYSICAL REVIEW D | 1995年 / 51卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.51.15

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The difference between the timelike and spacelike meson form factors is analyzed in the framework of perturbative QCD with Sudakov effects included. It is found that integrable singularities appear but that the asymptotic behavior is the same in the timelike and spacelike regions. The approach to asymptotia is quite slow and a rather constant enhancement of the timelike value is expected at a measurable large Q2. This is in agreement with the trend shown by experimental data. © 1995 The American Physical Society.

引用

页码：15 / 24

页数：10

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