PT Journal AU Flynn, JM Hernandez, E Nieves, J TI Triply heavy baryons and heavy quark spin symmetry SO Physical Review D JI Phys. Rev. D PY 2012 BP 014012 EP 10pp VL 85 IS 1 DI 10.1103/PhysRevD.85.014012 LA English AB We study the semileptonic b -> c decays of the lowest-lying triply heavy baryons made from b and c quarks in the limit m(b), m(c) >> Lambda(QCD) and close to the zero-recoil point. The separate heavy-quark spin symmetries strongly constrain the matrix elements, leading to single form factors for ccb -> ccc, bbc -> ccb, and bbb -> bbc baryon decays. We also study the effects on these systems of using a Y-shaped confinement potential, as suggested by lattice QCD results for the interaction between three static quarks. ER