Post Doctoral Research Fellow
Academic and research departmentsTheoretical Nuclear Physics Group, Department of Physics, Faculty of Engineering and Physical Sciences.
Abhishek, P. Arumugam, A. K. Rhine Kumar (2023) Giant dipole resonance and its fine structures in 144-152Nd, 152Sm studied within the linear response theory
We present a microscopic approach for giant dipole resonance (GDR) where the linear response by the nuclear density to the dipole radiation is represented through the single-particle wavefunctions calculated with a triaxial Woods-Saxon potential. We follow a microscopic-macroscopic approach to estimate the nuclear deformation with the same potential. We explain the recent experimental data for even-even nuclei 144-152Nd and 152Sm and present a comparison with the macroscopic approach for GDR. We highlight the cases where the results from the microscopic approach are sensitive to the change in single-particle configuration despite no change in shape and mass but with a change of two protons in a mid-shell region. We also present the fine structure analysis of the GDR cross-section using the continuous wavelet transform (CWT) framework and elucidate the origin of such fine structures.