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Anharmonic properties of double giant dipole resonance

V. Yu. Ponomarev·P. F. Bortignon·R. A. Broglia·V. V. Voronov
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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 $J^π = 0^+$ 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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V. Yu. Ponomarev, P. F. Bortignon, R. A. Broglia, V. V. Voronov. 2000-06-29. Anharmonic properties of double giant dipole resonance. https://doi.org/10.1103/physrevlett.85.1400

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