Two-photon annihilation into pion pairs

被引：0

作者：

Vogt, C ^{[1
]}

机构：

[1] Univ Wuppertal, Fachbereich Phys, D-42097 Wuppertal, Germany

来源：

PHOTON 2000 | 2001年 / 571卷

关键词：

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：

We discuss pion pair production in two-photon collisions in two different kinematical regimes. When both photons are real and at moderately large center-of-mass energy roots we elaborate on partonic transverse momentum and Sudakov corrections within the hard scattering approach, We also point out the difference between our approach and that of other authors. When one of the photons is highly virtual the produced pion pair can be described in terms of a two-pion distribution amplitude, for which we derive the perturbative limit at large s.

引用

页码：345 / 350

页数：6

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