Covariant axial form factor of the nucleon in a chiral constituent quark model

Details Covariant axial form factor of the nucleon in a chiral constituent quark model Covariant axial form factor of the nucleon in a chiral constituent quark model

2001-05-10

arxiv.org/abs/nucl-th/0105028v3

Phys.Lett. B516 (2001) 183-190

Physics

Nuclear Physics

Nuclear Theory

10 pages, 1 figure in .eps format, typeset with Elsevier elsart style files included. Revised version with a newly added secti

Scientific paper

10.1016/S0370-2693(01)00915-7

The axial form factor G_A of the nucleon is investigated for the Goldstone-boson-exchange constituent quark model using the point-form approach to relativistic quantum mechanics. The results, being covariant, show large contributions from relativistic boost effects. The predictions are obtained directly from the quark-model wave functions, without any further input such as vertex or constituent-quark form factors, and fall remarkably close to the available experimental data.

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