Current, Pion and Photon Transitions between Heavy Baryons

I discuss the structure of current-induced bottom baryon to charm baryon transitions, and the structure of pion and photon transitions between heavy charm or bottom baryons in the Heavy Quark Symmetry limit as mQ → ∞. The emphasis is on the structural similarity of the Heavy Quark Symmetry predictions for the three types of transitions. The discussion involves the ground state s-wave heavy baryons as well as the excited pwave heavy baryon states. Using a constituent quark model picture for the light diquark system with an underlying SU(2Nf ) ⊗ O(3) symmetry one arrives at a number of new predictions that go beyond the Heavy Quark Symmetry predictions. ∗Supported in part by BMBF, FRG under contract 06MZ730