Pion form factor within QCD instanton vacuum model

被引：0
|
作者：
Dorokhov, AE [1 ]
机构：
[1] Joint Inst Nucl Res, Bogoliubov Theoret Lab, Dubna 141980, Moscow Region, Russia
来源：
INTERNATIONAL WORKSHOP ON HADRON PHYSICS 96: TOPICS ON THE STRUCTURE AND INTERACTION OF HADRONIC SYSTEMS | 1997年
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D O I：
暂无
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：
Instanton induced pion wave function is constructed. It provides all intrinsic k(perpendicular to) dependence which suppress soft virtual one-gluon exchanges and thus leigitmates the perturbative QCD (pQCD) calculations of the pion elec tromagnetic form factor in the region of momentum transfers above the scale Q(c) root 3/2 root f 1/rho(c) similar to O(1) GeV, where f = (2n(c))(pi(2) rho(c)(4)/2) is a packing fraction parameter, rho(c) is an effective instanton size and n(c) is an effective density of instantons in the instanton vacuum of QCD.
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收藏
页码：221 / 230
页数：10
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