Precision tests of fundamental physics with η and η′ mesons
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An approach to the properties of the [Formula: see text] system developed to solve the famous [Formula: see text] problem is used to calculate the partial widths ratios to [Formula: see text] and [Formula: see text] in the [Formula: see text] and [Formula: see text] decays. We obtain the results in agreement with the experimental data.more » « less