Axial Anomaly and Mixing Parameters of Pseudoscalar Mesons
Abstract
In this work the analysis of mixing parameters of the system involving eta, eta' mesons and some third massive state G is carried out. We use the generalized mixing scheme with three angles. The framework of the dispersive approach to Abelian axial anomaly of isoscalar non-singlet current and the analysis of experimental data of charmonium radiative decays ratio allow us to get a number of quite strict constraints for the mixing parameters. The analysis shows that the equal values of axial current coupling constants f_8 and f_0 are preferable which may be considered as a manifestation of SU(3) and chiral symmetry.
Keywords
Cite
@article{arxiv.1001.0045,
title = {Axial Anomaly and Mixing Parameters of Pseudoscalar Mesons},
author = {Yaroslav N. Klopot and Armen G. Oganesian and Oleg V. Teryaev},
journal= {arXiv preprint arXiv:1001.0045},
year = {2010}
}
Comments
8 pages, 6 figures, submitted to the proceedings of the "Advanced Studies Institute - Symmetries And Spin" (SPIN-Praha-2009) Prague, July 26 - August 2, 2009