Phenomenological evidence for the energy dependence of the $\eta -{\eta }^{\prime }$ mixing angle

Abstract

A phenomenological analysis on various decay processes is performed using an energy-dependent $\eta -{\eta }^{\prime }$ 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 $\eta -{\eta }^{\prime }$ sector.

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

References in corpus (3)

• On the 1/N expansion in chiral perturbation theory
• Mixing of eta-eta' Mesons in J/psi Decays into a Vector and a Pseudoscalar Meson
• eta-eta' mixing from U_L(3) x U_R(3) Chiral Perturbation Theory

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