Axial anomaly, quark-hadron duality and transition form factors

被引:0
|
作者
Y. N. Klopot
A. G. Oganesian
O. V. Teryaev
机构
[1] Joint Institute for Nuclear Research,
[2] Institute of Theoretical and Experimental Physics,undefined
关键词
Nucleus Letter; Pseudoscalar Meson; Axial Current; Transition Form Factor; Photon Transition;
D O I
10.1134/S1547477112070096
中图分类号
学科分类号
摘要
We study the transition form factors of pseudoscalar mesons by means of anomaly sum rule — an exact relation which is a consequence of dispersive representation of axial anomaly. This sum rule (derived for the octet channel) and combined with the quark-hadron duality allows us to relate the transition form factors of η and η′ mesons. The notion of quark-hadron duality in connection with our approach is discussed and comparison with recent experimental data is done.
引用
收藏
页码:769 / 771
页数:2
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