$\eta$-$\eta'$ mixing in large-$N_c$ chiral perturbation theory: discussion, phenomenology, and prospects

A systematic study of the $η$ - $η^{'}$ mixing in Large- $N_{c}$ chiral perturbation theory is presented with special emphasis on the role of the next-to-next-to-leading-order contributions in the combined momentum, quark-mass, and $1 / N_{c}$ expansions. At this order, loop corrections as well as OZI-rule-violating pieces need to be included. Mixing angles as well as pseudoscalar decay constants are discussed within this framework. The results are compared with recent phenomenological approaches.

$η$ - $η^{'}$ mixing in large- $N_{c}$ chiral perturbation theory: discussion, phenomenology, and prospects

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$η$ - $η^{'}$ mixing in large- $N_{c}$ chiral perturbation theory: discussion, phenomenology, and prospects

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ηη-η′η′ mixing in large-NcNc​ chiral perturbation theory: discussion, phenomenology, and prospects

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ηη-η′η′ mixing in large-NcNc​ chiral perturbation theory: discussion, phenomenology, and prospects

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$η$ - $η^{'}$ mixing in large- $N_{c}$ chiral perturbation theory: discussion, phenomenology, and prospects

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$η$ - $η^{'}$ mixing in large- $N_{c}$ chiral perturbation theory: discussion, phenomenology, and prospects

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AI智能校验