Phenomenological evidence for the energy dependence of the $η-η'$ mixing angle

Details Phenomenological evidence for the energy dependence of the $η-η'$ mixing angle Phenomenological evidence for the energy dependence of the $η-η'$ mixing angle

1999-01-25

arxiv.org/abs/hep-ph/9901405v2

Phys.Lett. B459 (1999) 288-294

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages. Introduction slightly modified. A second Table added. Conclusions remain unchanged

Scientific paper

10.1016/S0370-2693(99)00629-2

A phenomenological analysis on various decay processes is performed using an energy-dependent $\eta-\eta'$ mixing angle scheme. Special attention is given to the radiative couplings between lowest-lying vector and pseudoscalar mesons. The agreement between our predictions and the experimental values is remarkable. This analysis opens a connection to two-angle fits in the $\eta-\eta'$ sector.

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