In:
International Journal of Modern Physics E, World Scientific Pub Co Pte Ltd, Vol. 29, No. 07 ( 2020-07), p. 2050040-
Abstract:
We investigate the electric dipole ([Formula: see text]) structure properties of the deformed [Formula: see text] Nd nuclei in the giant dipole resonance (GDR) region within the framework of the quasiparticle random-phase approximation (QRPA). Translational and Galilean invariance (TGI) QRPA with separable isovector dipole–dipole residual interaction have been employed for the calculations. We have computed the photoabsorption cross-section and then we have compared with the experimental data. Our calculations revealed that while the photoabsorption cross-section shows a Lorentzian line in the neighborhood of spherical geometry, it starts to shift to an asymmetric shape by increasing deformation in [Formula: see text]Nd isotopes by increasing neutron number. In addition to this, we have also observed that the splitting of the [Formula: see text] strength distribution and the separation between [Formula: see text] and [Formula: see text] branches are increasing. We have calculated the contribution of the electric and magnetic parts of total dipole strength up to 20[Formula: see text]MeV for the nuclei of interest. This calculation shows that the electric part dominates the total dipole strength and [Formula: see text] excitation dominates the electric part.
Type of Medium:
Online Resource
ISSN:
0218-3013
,
1793-6608
DOI:
10.1142/S0218301320500408
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2020
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