Applicability of shape parameterizations for giant dipole resonance in warm and rapidly rotating nuclei

Abstract

We investigate how well the shape parameterizations are applicable for studying the giant dipole resonance (GDR) in nuclei, in the low temperature and/or high spin regime. The shape fluctuations due to thermal effects in the GDR observables are calculated using the actual free energies evaluated at fixed spin and temperature. The results obtained are compared with Landau theory calculations done by parameterizing the free energy. We exemplify that the Landau theory could be inadequate where shell effects are dominating. This discrepancy at low temperatures and high spins are well reflected in GDR observables and hence insists on exact calculations in such cases.

10 pages, 2 figures

References in corpus (7)

• Scaling Properties of the Giant Dipole Resonance Width in Hot Rotating nuclei
• Behavior of the giant-dipole resonance in ${}^{120}$Sn and ${}^{208}$Pb at high excitation energ
• Pairing effect on the giant dipole resonance width at low temperature
• Population of isomers in decay of the giant dipole resonance
• Giant dipole resonance with exact treatment of thermal fluctuations
• Giant-dipole Resonance and the Deformation of Hot, Rotating Nuclei
• Effects of angular momentum projection on the nuclear partition function and the observation of the giant dipole resonance in hot nuclei

Cited by in corpus (2)

• Effects of thermal shape fluctuations and pairing fluctuations on the giant dipole resonance in warm nuclei
• Pairing effect in thermal shape fluctuation model on the width of giant dipole resonance