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arXiv:0705.0954 [hep-ph]AbstractReferencesReviewsResources

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

B. Borasoy, R. Nißler

Published 2007-05-07, updated 2007-06-08Version 2

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.

Comments: 22 pages, 7 figures, 5 tables; additional material added and figures 6,7 revised
Journal: Eur.Phys.J.A33:95-106,2007
Categories: hep-ph, nucl-th
Subjects: 12.39.Fe, 13.20.Jf
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