Giant-dipole Resonance and the Deformation of Hot, Rotating Nuclei

Abstract

The development of nuclear shapes under the extreme conditions of high spin and/or temperature is examined. Scaling properties are used to demonstrate universal properties of both thermal expectation values of nuclear shapes as well as the minima of the free energy, which can be used to understand the Jacobi transition. A universal correlation between the width of the giant dipole resonance and quadrupole deformation is found, providing a novel probe to measure the nuclear deformation in hot nuclei.

arXiv comment6 pages including 6 figures. To appear in Phys. Rev. Lett. Revtex.

References in corpus (5)

• 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
• Isovector Vibrations in Nuclear Matter at Finite Temperature
• Effects of angular momentum projection on the nuclear partition function and the observation of the giant dipole resonance in hot nuclei
• The damping width of giant dipole resonances of cold and hot nuclei: a macroscopic model

Cited by in corpus (4)

• Extreme nuclear shapes examined via Giant Dipole Resonance lineshapes in hot light mass system
• Giant dipole resonance width as a probe for nuclear deformation at finite excitation
• Giant dipole resonance with exact treatment of thermal fluctuations
• Applicability of shape parameterizations for giant dipole resonance in warm and rapidly rotating nuclei