Single Pion Transitions of Charmed Baryons

The $SU(2N_f)XO(3)$ constituent quark model symmetry of the light diquark system are used to analyze single pion transitions of S-wave to S-wave and P-wave to S-wave heavy baryons. We show that the Heavy Quark Symmetry (HQS) coupling factors are given in terms of the three independent couplings $g_{{\mathrm{\Sigma }}_Q{\mathrm{\Lambda }}_Q\pi },f_{{\mathrm{\Lambda }}_{Q1}{\mathrm{\Sigma }}_Q\pi }$ and $f_{{\mathrm{\Lambda }}_{Q1}^{\ast }{\mathrm{\Sigma }}_Q\pi }$. Light-Front quark model spin wave functions are, then, employed to calculate these couplings and to predict decay rates of single pion transitions between charm baryon states.