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$\eta$-$\eta\prime$ mixing in Large-Nc ChPT: discussion, phenomenology, and prospects
2016
Proceedings of The 8th International Workshop on Chiral Dynamics — PoS(CD15)
unpublished
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A systematic study of the η-η mixing in Large-N c chiral perturbation theory is presented [1], 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 OZIrule-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.
doi:10.22323/1.253.0056
fatcat:aolnwbuy55cnpdjk52xbjqfvp4