Abstract:
A method is proposed for a quantitative description of excitations in clusters based on the Hartree–Fock approximation. It is shown for lithium as an example that the possibility of existence of long-lived states can be judged from the results of calculation of excitations of the atom. Excited states observed in lithium clusters have an infinitely long decay time for atomic spacings on the order of 3, 6, and 13 Bohr radii.
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