SU(6) violations due to one-gluon exchange

Abstract

The one-gluon-exchange corrections to the baryon magnetic moments and the weak semileptonic decays are shown to have the correct two-body operator in order to explain recent data. An explicit model calculation using a mode sum for the quark propagator is then performed. In this model calculation the two lowest states dominate the corrections. This value of SU(6) breaking explains the measured ratio ${\Sigma }^{\mathrm{-}}$→neν¯/Λ→peν¯ as well as &${\mathrm{\mu }}_{\mathrm{\Lambda }}$ and it restores ${\mu }_p$/${\mu }_n$≃-(3/2 in chiral bag models.