Pion and photon light-cone wave functions from the instanton vacuum

被引：126

作者：

Petrov, VY ^{[1
]}

Polyakov, AV

Ruskov, R

Weiss, C

Goeke, K

机构：

[1] Petersburg Nucl Phys Inst, St Petersburg 188350, Russia

[2] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia

[3] Ruhr Univ Bochum, Inst Theoret Phys 2, D-44780 Bochum, Germany

来源：

PHYSICAL REVIEW D | 1999年 / 59卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.59.114018

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The leading-twist wave functions of the pion and the photon at a tow normalization point are calculated in the effective low-energy theory derived from the instant on vacuum. The pion wave function is found to be close to the asymptotic one, consistent with the recent CLEO measurements. The photon wave function is nonzero at the end points. This different behavior is a consequence of the momentum dependence of the dynamical quark mass suggested by the instanton vacuum. We comment on the relation of meson wave functions and off-forward parton distributions in this model. [S0556-2821(99)09309-1].

引用

页数：8

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