On baryon semileptonic decays

We make comments on baryon semileptonic decays motivated by recent work on quark models. We find the decay rate of ${\Lambda }_c\to \Lambda \overline{e}\nu$ to be reduced by a factor of 2 from its naive value due to wave-function distortion and form-factor effects. Configuration mixing implies the value of ±0.04 for the vector-to-axial-vector ratio in ${\Sigma }^{\pm }\to \Lambda \beta$ decay. Small changes in S${\mathrm{U}}_6$ predictions due to configuration mixing are also discussed. The Appendix describes a very simple method of evaluation of the axial-vector-to-vector ratio in the symmetric quark model with static quarks.