pith. sign in

arxiv: hep-ph/0210151 · v1 · submitted 2002-10-09 · ✦ hep-ph

QCD based quark description of pi-pi scattering up to the sigma and rho region

classification ✦ hep-ph
keywords scatteringpi-piquarkresonancesamplitudesapproachesbackwardbethe--salpeter
0
0 comments X
read the original abstract

We study forward and backward pi-pi scattering within a QCD model based on the Dyson--Schwinger, Bethe--Salpeter equations truncated to the rainbow-ladder level. Our microscopic relativistic quark formulation preserves chiral symmetry and reproduces the observed scattering lengths for total isospin zero, one and two. At higher energies both scalar and vector meson resonances naturally occur in the scattering amplitudes. We also report a comparative study with phenomenological meson-exchange models and find such approaches are reasonable especially near pi-pi resonances.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.