Axial-vector form factors in the chiral quark constituent model

Abstract

The chiral constituent quark model (χCQM) is able to phenomenologically estimate the quantities having implications for chiral symmetry breaking and SU(3) symmetry breaking. In particular, it provides a fairly good description of the singlet (g0A) and non-singlet (g3A and g8A) axial-vector coupling constants at zero momentum transfer for the low lying octet baryons (N, Σ, Ξ and Λ).We have used the conventional dipole form of parametrization to analyse the Q2 dependence of the axial-vector form factors (G0A(Q2), G3A(Q2) and G8A(Q2)).