Axial charges of the nucleon andN*resonances

The axial charges of the nucleon and the well-established $N^{*}$ resonances are studied within a consistent framework. For the first time the axial charges of the $N^{*}$ resonances are produced for the relativistic constituent quark model. The axial charge of the nucleon is predicted close to experiment, and the ones of $N^{*}(1535)$ and $N^{*}(1650)$, the only cases where such a comparison is possible, agree well with results from quantum chromodynamics on the lattice that have recently become available. The relevance of the magnitudes of the $N^{*}$ axial charges for the low-energy behavior of quantum chromodynamics is discussed. DOI: http://dx.doi.org/10.1103/PhysRevC.81.028201 © 2010 The American Physical Society