Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2000-05-15
Phys.Rev.Lett. 85 (2000) 1400-1403
Physics
Nuclear Physics
Nuclear Theory
4 pages, 2 figures
Scientific paper
10.1103/PhysRevLett.85.1400
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 $J^{\pi} = 0^+$ 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.
Bortignon Pier Francesco
Broglia Ricardo A.
Ponomarev Yu. V.
Voronov Vladimir V.
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