Timelike and spacelike hadron form factors, Fock state components and light-front dynamics

E. Pace (Univer. di Roma "Tor Vergata"); G. Salme` (INFN - Sezione di Roma); J. P. B. C. de Melo (Univer. Cruzeiro do Sul; S. Jose` dos Campos); S. Paulo); S. Pisano (Univer. di Roma "La Sapienza"); T. Frederico (ITA-CTA

arxiv: hep-ph/0611328 · v1 · submitted 2006-11-27 · ✦ hep-ph

Timelike and spacelike hadron form factors, Fock state components and light-front dynamics

E. Pace (Univer. di Roma "Tor Vergata") , G. Salme` (INFN - Sezione di Roma) , T. Frederico (ITA-CTA , S. Jose` dos Campos) , S. Pisano (Univer. di Roma "La Sapienza") , J. P. B. C. de Melo (Univer. Cruzeiro do Sul , S. Paulo) This is my paper

classification ✦ hep-ph

keywords factorsformspacelikecomponentshadronlight-frontmodelnucleon

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A unified description of spacelike and timelike hadron form factors within a light-front model was successfully applied to the pion. The model is extended to the nucleon to study the role of $q \bar q$ pair production and of nonvalence components in the nucleon form factors. Preliminary results in the spacelike range $0 \le Q^2 \le 10 ~ (GeV/c)^2$ are presented.

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Timelike and spacelike hadron form factors, Fock state components and light-front dynamics

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