Chiral Anomaly and Eta-Eta' Mixing

Details Chiral Anomaly and Eta-Eta' Mixing Chiral Anomaly and Eta-Eta' Mixing

1997-10-16

arxiv.org/abs/hep-ph/9710382v3

Phys.Rev. D57 (1998) 4397-4402

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 page standard Latex file, three figures, added comments

Scientific paper

10.1103/PhysRevD.57.4397

We determine the $\eta-\eta'$ mixing angle via a procedure relatively
independent of theoretical assumptions by simultaneously fitting $\eta- eta'$
reactions involving the anomaly--$\eta,\eta'\to\gamma\gamma, \pi^+\pi^-\gamma$.
We extract reasonably precise renormalized values of the octet and singlet
pseudoscalar decay constants $F_8,F_0$ as well as the mixing angle $\theta$.

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