Quark-Model Predictions for Axial Charges of Nucleon and N* Resonances

We have investigated the axial charges of the nucleon and N* resonances in a relativistic framework. Besides the axial charge of the nucleon, rst predictions are reported for the axial charges of all well-established N* resonances below ～1.9 GeV as produced by the relativistic constituent quark models relying on Goldstoneboson-exchange and one-gluon-exchange hyper ne interactions. The results for the axial charge of the nucleon are found close to experiment but with somewhat smaller values, similar to modern ndings from quantum chromodynamics on the lattice. The predictions of the axial charges of the negative-parity N* (1535) and N*(1650) resonances also agree with what has most recently become available from lattice calculations. We discuss the roles of the axial charges of the N* resonances for the phenomenon of chiral-symmetry restoration possibly occurring in the higher hadron spectra.