Algebra of Currents and GettingSU(6)Results fromSU(4)

Abstract

Within the framework of the algebra-of-currents approach of B. W. Lee, it is shown that apart from a slight complication the $\mathrm{SU}\left(6\right)\mathrm{}$ results for the ratios, $\frac{G_A}{G_V}$ and $\frac{{\mu }_P}{{\mu }_n}$ are still obtained when the assumption of $\mathrm{SU}\left(3\right)\mathrm{}$ invariance is relaxed and only isospin [$\mathrm{SU}\left(2\right)\mathrm{}$] symmetry is required.