arxiv: hep-ph/0410031 · v2 · submitted 2004-10-02 · ✦ hep-ph · hep-ex· nucl-th

The pion electromagnetic form-factor in a QCD-inspired model

J.P.B.C. de Melo (Instituto de Fisica Teorica , IFT , UNESP , SP. , Brazil , Centro de Ciencias Exatas e Tecnologicas , Universidade Cruzeiro do Sul , Sao Paulo

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Brazil) T. Frederico (Dep. de Fisica ITA CTA Sao Jose dos Campos E. Pace (Dipartimento di Fisica Universita di Roma Tor Vergata INFN Sezione Tor Vergata Roma Italy) G. Salme (Universita de Roma I INFN

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classification ✦ hep-ph hep-exnucl-th

keywords pionmodelelectromagneticqcd-inspiredabsorbsconfiningcurrentdecay

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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 $q^+>0$ decay in an interacting quark-antiquark pair,wich absorbs the initial pion and produces the pion in the final state.

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The pion electromagnetic form-factor in a QCD-inspired model

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