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arXiv · hep-ph/9811411

Baryon axial currents

B. Borasoy
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Abstract

The baryon axial currents are calculated at one-loop order in heavy baryon chiral perturbation theory by employing both a cutoff and dimensional regularization. Data from the semileptonic baryon decays is used to perform a least-squares fit to the two axial couplings D and F of the effective Lagrangian. Predictions for the momentum dependent axial form factors are made and the two different regularization schemes are compared. We also include the spin-3/2 decuplet in the effective theory.

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B. Borasoy. 1998-11-19. Baryon axial currents. https://doi.org/10.1103/physrevd.59.054021

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