Singlet and non-singlet axial-vector form factors for the octet baryons.

28 Apr 2015, 15:15
25m
BALLROOM EAST ()

BALLROOM EAST

WG6 Spin Physics WG6 Spin Physics

Speaker

Harleen Dahiya (Dr. B.R. Ambedkar National Institute of Technology)

Description

The axial-vector form factors of the low lying octet baryons ($N$, $\Sigma$, $\Xi$ and $\Lambda$) have been studied for the implications of chiral symmetry breaking and SU(3) symmetry breaking for the singlet ($g^0_{A}$) and non-singlet ($g^3_{A}$ and $g^8_{A}$) axial-vector coupling constants. In addition to studying the total strange singlet and non-singlet contents ($G_s^0(Q^2)$, $G_s^3(Q^2)$ and $G_s^8(Q^2)$) of the nucleon determining the strange quark contribution to the nucleon spin ($\Delta s$), we have also used the conventional dipole form of parametrization to analyse the $Q^2$ dependence of the axial-vector form factors $G^0_{A}(Q^2)$, $G^3_{A}(Q^2)$ and $G^8_{A}(Q^2)$.

Primary author

Harleen Dahiya (Dr. B.R. Ambedkar National Institute of Technology)

Co-author

Dr Monika Randhawa (Panjab University, Chandigarh)

Presentation Materials

There are no materials yet.