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We present an approach based on the dynamical mean field theory which is ableto give the excitation spectrum of a triply degenerate Hubbard model with aHund's exchange invariant under spin rotation. The lattice problem can bemapped onto a local Anderson model containing 64 local eigenstates. This localproblem is solved by a generalized non-crossing approximation. The influence ofHund's coupling J is examined in detail for metallic states close to the metalinsulator transition. The band-filling is shown to play a crucial roleconcerning the effect of J on the low energy dynamics.Comment: Phys. Rev. B (In Press

Effect of Hund’s exchange on the spectral function of a triply orbital degenerate correlated metal