Axial-vector form factors of the nucleon within the chiral quark-soliton model and their strange components

Abstract

We investigate three different axial-vector form factors of the nucleon, $G_A^0$, $G_A^3$, $G_A^8$, within the framework of the SU(3) chiral quark-soliton model, emphasizing their strangeness content. We take into account the rotational $1/N_c$ and linear strange quark ($m_s$) contributions using the symmetry-conserving SU(3) quantization and assuming isospin symmetry. The strange axial-vector form factor is also obtained and they all are discussed in the context of the parity-violating scattering of polarized electrons off the nucleon and its relevance to the strange vector form factors.

Comments: 13 pages, 4 figures