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

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

2007-05-07

arxiv.org/abs/0705.0954v2

Eur.Phys.J.A33:95-106,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 7 figures, 5 tables; additional material added and figures 6,7 revised

Scientific paper

10.1140/epja/i2007-10396-3

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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