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arXiv · hep-ph/0201289

The eta-prime -> eta pi pi decay in U(3) chiral perturbation theory

N. Beisert·B. Borasoy
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Abstract

The dominant decay mode of the eta-prime, eta-prime -> eta pi pi, is investigated within the framework of infrared regularized U(3) chiral perturbation theory up to fourth chiral order and including one-loop corrections. We find reasonable agreement with experimental data and observe convergence of the chiral series.

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N. Beisert, B. Borasoy. 2002-01-30. The eta-prime -> eta pi pi decay in U(3) chiral perturbation theory. https://doi.org/10.1016/s0375-9474(02)00652-8

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