Calculations reveal influential decay channels in light mesons, suggesting insights for future experimental predictions.
Electromagnetic and weak semileptonic decays of light mesons with the production of pairs l + l − and lν l are calculated within the quark model based on an effective four-quark interaction. Quark diagrams with meson vertices VPA, VVP and VPP are considered. Theoretical estimations for decay widths are obtained. The dominant role of channels with axial-vector meson in weak decays are shown. A number of predictions for future experiments are presented.
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K. Nurlan (2025) studied this question.
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