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

L. Ya. Glozman·M. Radici·R. F. Wagenbrunn·S. Boffi·W. Klink·W. Plessas
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Abstract

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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L. Ya. Glozman, M. Radici, R. F. Wagenbrunn, S. Boffi, W. Klink, W. Plessas. 2001-07-23. Covariant axial form factor of the nucleon in a chiral constituent quark model. https://doi.org/10.1016/s0370-2693(01)00915-7

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