Abstract
Background: The nuclear Coulomb form factor is a useful tool to study nuclear structure. For spherical nuclei, can be calculated by combining the spherical relativistic mean-field (RMF) model and the distorted wave Born approximation (DWBA) method.
Purpose: In a previous paper, the axially deformed RMF model + DWBA method was successfully applied to study the Coulomb form factors of deformed even-even nuclei. In this paper, we further extend this method to study the Coulomb form factors of deformed odd- nuclei.
Method: First, the charge distributions of odd- nuclei are calculated with the deformed RMF model and expanded into multipole components. Next, with the multipole moment charge distributions, the Coulomb multipoles , and are calculated. Finally, by summing over Coulomb multipoles required, the Coulomb form factors of odd- nuclei can be obtained.
Results: For deformed odd- nuclei, the theoretical Coulomb form factors calculated from the deformed RMF charge densities are in better agreement with the experimental data. For nuclei with , the diffraction minima of Coulomb form factors are much flatter, which is due to the contributions of quadrupole charge distributions.
Conclusions: Results indicate that the axially deformed RMF model can give reasonable descriptions for multipole moment charge distributions of odd- nuclei. The method in this paper can provide a useful guide for future experiments of electron scattering off exotic odd- nuclei.
4 More- Received 1 July 2017
DOI:https://doi.org/10.1103/PhysRevC.96.034314
©2017 American Physical Society