Nucleon electromagnetic and axial form factors in point-form relativistic quantum mechanics

2002/12/13 by R. F. Wagenbrunn, S. Boffi, L. Ya. Glozman +3
Physics and Astronomy · #hep-ph

paper · pdf

published as Few Body Syst.Suppl. 14 (2003) 411-414 · 4 pages, 6 figures, contribution to XVIII European Conference on Few-Body Problems in Physics, September 2002, Bled, Slovenia

arxiv created 2002/12/13 · arxiv updated 2009/11/30

Abstract

Results for the proton and neutron electric and magnetic form factors as well as the nucleon axial form factor are presented for constituent quark models, based on either one-gluon-exchange and Goldstone-boson-exchange dynamics. The calculations are performed in a covariant framework using the point-form approach to relativistic quantum mechanics. The only input to the calculations is the nucleon wave function of the corresponding constituent quark model. A comparison is given to results of the instanton-induced constituent quark model treated with the Bethe-Salpeter equation.

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