arXiv:hep-ph/0406337·v4·High Energy Physics — Phenomenology
Pion Form Factor in the Light-Front
J.P.B.C.de Melo · (Instituto de Fisica Teorica, IFT, UNESP, SP., Brazil and LPNHE, Universite P.& M.Curie, 4 Place Jussieu, Paris, France.)
Abstract
The pion electromagnetic form factor is calculated with a light-front quark model. The "plus" and "minus" component of the electromagnetic current are used to calculate the electromagnetic form factor in the Breit frame with two models for the q\bar{q} vertex. The light front constituent quark models describes very well hadronic wave function for pseudo-scalar and vector particles. Symmetry problems arinsing in the light-front approach are solved by the pole dislocation method. The results are compared with new experimental data and with other quark models.
Comments: 4 pages,1 figure (eps), Latex,AIP style.To appear in the proceedings "IX Hadron Physics and VII Relativistic Aspects of Nuclear Physics: A Joint Meeting on QCD and QGP, Hadron Physics-RANP,2004,Angra dos Reis, Rio de Janeiro,Brazil.(some references are added and small mistakes are corrected.)