eta, eta-prime --> pi+ pi- l+ l- in a chiral unitary approach
High Energy Physics - Phenomenology
2008-11-26 v2 Nuclear Theory
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.
Keywords
Cite
@article{arxiv.0705.0954,
title = {eta, eta-prime --> pi+ pi- l+ l- in a chiral unitary approach},
author = {B. Borasoy and R. Nißler},
journal= {arXiv preprint arXiv:0705.0954},
year = {2008}
}
Comments
22 pages, 7 figures, 5 tables; additional material added and figures 6,7 revised