Anharmonic properties of the double giant dipole resonance

Authors
Ponomarev, VY Bortignon, PF Broglia, RA Voronov, VV
Citation
Vy. Ponomarev et al., Anharmonic properties of the double giant dipole resonance, PHYS REV L, 85(7), 2000, pp. 1400-1403
Citations number
36
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
85
Issue
7
Year of publication
2000
Pages
1400 - 1403
Database
ISI
SICI code
0031-9007(20000814)85:7<1400:APOTDG>2.0.ZU;2-R
Abstract
A systematic microscopic study of the anharmonic properties of the double g iant 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 th at the corrections of the energy centroid of the J(pi) = 0(+) and 2(+) comp onents of the DGDR from its harmonic limit are negative, have a value of th e order of a few hundred keV, and follow an A(-1) dependence.