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arXiv · 0705.0954

eta, eta-prime --> pi+ pi- l+ l- in a chiral unitary approach

B. Borasoy·R. Nißler
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Abstract

The decays eta, eta-prime --> pi+ pi- l+ l- (with l = e, mu) are investigated within a chiral unitary approach which combines the chiral effective Lagrangian with a coupled-channels Bethe-Salpeter equation. Predictions for the decay widths and spectra are given.

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B. Borasoy, R. Nißler. 2007-06-08. eta, eta-prime --> pi+ pi- l+ l- in a chiral unitary approach. https://doi.org/10.1140/epja/i2007-10396-3

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