Baryon axial vector currents - art. no. 054021

The baryon axial vector currents are calculated at one-loop order in heavy baryon chiral perturbation theory by employing both a cutoff and dimensiona l regularization. Data from the semileptonic baryon decays are used to perf orm a least-squares fit to the two axial vector couplings D and F of the ef fective Lagrangian. Predictions for the momentum dependent axial vector for m factors are made and the two different regularization schemes are compare d. We also include the spin-3/2 decuplet in the effective theory. [S0556-28 21(99)02005-6].