Axial Anomaly and Mixing Parameters of Pseudoscalar Mesons

2009/12/31 by Yaroslav N. Klopot, Klopot, Yaroslav N., Armen G. Oganesian +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.1001.0045

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

arxiv created 2009/12/31 · arxiv updated 2010/01/14

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 f₈ and f₀ are preferable which may be considered as a manifestation of SU(3) and chiral symmetry.

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