Transition form factors of π0, η and η′ mesons: What can be learned from anomaly sum rule?

被引：1

作者：

Klopot, Yaroslav ^{[1
]}

Oganesian, Armen ^{[1
,2
]}

Teryaev, Oleg ^{[1
]}

机构：

[1] Joint Inst Nucl Res, Bogolitibov Lab Theoret Phys, Dubna 141980, Russia

[2] Inst Theoret & Expt Phys, Moscow 117218, Russia

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2013年 / 245卷

基金：

俄罗斯基础研究基金会;

关键词：

Form factor; pseudoscalar meson; axial anomaly; strange quark mass contribution; GAMMA-ASTERISK-GAMMA;

D O I：

10.1016/j.nuclphysbps.2013.10.049

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 studied the applications of the anomaly sum rule (ASR) to the transition form factors of light pseudoscalar mesons: pi(0), eta and eta '. This nonperturbative QCD approach can be used even if the QCD factorization is broken. The status of possible small non-OPE corrections to continuum in comparison to BaBar and Belle data is explored. The accuracy of the applied method and the role of the quark mass contributions are discussed.

引用

页码：255 / 258

页数：4

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