Final State Interactions in B -> D ρ and B -> D*π Decays

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We analyze final state strong interaction effects in B -> D ρ and B -> D*π decays using the Regge model. We find that, due to the smallness of the contributions from the non-leading Regge trajectories (ρ, f, π etc.), final state interaction phases are small if the Pomeron coupling to the charm quark is suppressed in comparison to lighter quarks. Our conclusion is that for B decays into states containing charm, final state interaction effects should play a minor role.