Single Pion Transitions of Charmed Baryons

Abstract

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 $g_{{\Sigma }_Q{\Lambda }_Q\pi },f_{{\Lambda }_{Q1}{\Sigma }_Q\pi }$ and $f_{{\Lambda }_{Q1}^{\ast }{\Sigma }_Q\pi }$. 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.

Comments: 9 pages, Latex, no figers, a talk presented at the MRST `98 conference, 13-15 May, 1998, Montreal, Canada. To appear in the proceddings