THE APPLICABILITY OF PERTURBATIVE QCD TO THE PION FORM-FACTOR AND THE PIONIC WAVE-FUNCTION

被引：70
|
作者：
HUANG, T [1 ]
SHEN, QX [1 ]
机构：
[1] ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA
来源：
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1991年 / 50卷 / 01期
关键词：
EXCLUSIVE PROCESSES; QUANTUM CHROMODYNAMICS; ASYMPTOTIC-BEHAVIOR; Q2; ELECTROPRODUCTION; GEV2;
D O I：
10.1007/BF01558568
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We reanalyse the pionic form factor by using perturbative QCD theory and contributions from end-point regions. We find that the perturbative QCD can be applied to the pionic form factor as Q2 > 4 GeV2 and they become unreliable as Q2 less-than-or-equal-to 4 GeV2. Therefore the applicability of perturbative QCD to the form factor is questionable only as Q2 less-than-or-equal-to 4 GeV2.
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页码：139 / 144
页数：6
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