Issue |
EPJ Web of Conferences
Volume 21, 2012
CNR*11 – Third International Workshop on Compound Nuclear Reactions and Related Topics
|
|
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Article Number | 04003 | |
Number of page(s) | 12 | |
Section | Statistical Model and Gamma-Ray Strength Functions | |
DOI | https://doi.org/10.1051/epjconf/20122104003 | |
Published online | 14 February 2012 |
https://doi.org/10.1051/epjconf/20122104003
Description of dipole strength in heavy nuclei in conformity with their quadrupole degrees of freedom
1
Helmholtz Zentrum Dresden-Rossendorf (HZDR), Germany
2
Technische Universität Dresden, Germany
a e-mail: e.grosse@hzdr.de
b e-mail: a.junghans@hzdr.de
In conformity to new findings about the widespread occurrence of triaxiality arguments are given in favor of a description of the giant dipole resonance in heavy nuclei by the sum of three Lorentzians. This TLO parameterization allows a strict use of resonance widths Γ in accordance to the theoretically founded power law relation to the resonance energy. No additional variation of Γ with the photon energy and no violation of the sum rule are necessary to obtain a good agreement to nuclear photo-effect, photon scattering and radiative capture data. Photon strength other than E1 has a small effect, but the influence of the level density on photon emission probabilities needs further investigation.
© Owned by the authors, published by EDP Sciences, 2012
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