Anharmonic properties of double giant dipole resonance
V. Yu. Ponomarev, P. F. Bortignon, R. A. Broglia, V. V. Voronov
Abstract
A systematic microscopic study of the anharmonic properties of the double giant dipole resonance (DGDR) has been carried out, for the first time, for nuclei with mass number A spanning the whole mass table. It is concluded that the corrections of the energy centroid of the Jπ = 0+ and 2+ components of the DGDR from its harmonic limit are negative, have a value of the order of few hundred keV and follow an A-1 dependence.
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