418 citations · 914 across the 11 of their papers we have counts for
Showing 2004Show all
2 papers · 1 filter
hep-ph2004
Light scalars as tetraquarks or two-meson states from large Nc and unitarized Chiral Perturbation Theory
J. R. Pelaez
By means of unitarized Chiral Perturbation Theory it is possible to obtain a remarkable description of meson-meson scattering amplitudes up to 1.2 GeV, and generate poles associate…
hep-ph2004
The pion-pion scattering amplitude
J. R. Pelaez, F. J. Yndurain
We obtain reliable scattering amplitudes consistent with experimental data, both at low and high energies, and fulfilling appropriate analyticity properties. We do this by fir…