Hamiltonian for diabatic molecular states

Hyperradial-adiabatic potential curves for (d t μ)+ molecular ions calculated for states with total three-body angular momentum J = 1 and total parity p = 1, i.e. for the abnormal parity ground set, are demonstrated to be ''exactly'' diabatic-hyperradial potential curves for (J = 1, p = -1) symmetry adiabatic curves. This could be thought of as a formal manifestation of the Λ-doubling effect. The projection operator method of constructing a diabatic Hamiltonian that was suggested earlier can be naturally used in our case, too. (orig.)