arXiv:hep-ph/0410031·v2·High Energy Physics — Phenomenology
The pion electromagnetic form-factor in a QCD-inspired model
J.P.B.C. de Melo (Instituto de Fisica Teorica, IFT, UNESP, SP., Brazil and Centro de Ciencias Exatas e Tecnologicas, Universidade Cruzeiro do Sul, Sao Paulo, SP., Brazil)🇧🇷 · T. Frederico (Dep. de Fisica, ITA, CTA, Sao Jose dos Campos, SP., Brazil)🇧🇷 · E. Pace (Dipartimento di Fisica, Universita di Roma Tor Vergata, and INFN Sezione Tor Vergata, Roma, Italy)🇮🇹 · G. Salme (Universita de Roma I, INFN, Roma, Italy)🇮🇹
Abstract
We present detailed numerical results for the pion space-like electromagnetic form factor obtained within a recently proposed model of the pion electromagnetic current in a confining light-front QCD-inspired model. The model incorporates the vector meson dominance mechanism at the quark level, where the dressed photon with decay in an interacting quark-antiquark pair,wich absorbs the initial pion and produces the pion in the final state.
Comments: Talk given in Light-Cone 2004, Amsterdam,NL., 16-20 August, 2004. To appear in "Few-Body Systems". 4 pages, 2 figues eps, use Few-Body Sytems latex style