Time-like and space-like pion form factors within front-form dynamics
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Data
2005-05-06
Autores
De Melo, J. P B C [UNESP]
Frederico, T.
Pace, E.
Salmè, G.
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An approach for a unified description of the pion electromagnetic form factor in the space- and time-like regions, within a constituent quark model on the light front is briefly illustrated. Three main ingredients enter our approach: i) the on-shell quark-hadron vertex functions in the valence sector, ii) the dressed photon vertex where a photon decays in a quark-antiquark pair, and iii) the emission and absorption amplitudes of a pion by a quark. © 2005 American Institute of Physics.
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AIP Conference Proceedings, v. 768, p. 374-376.