Pairing effect in thermal shape fluctuation model on the width of giant dipole resonance

Abstract

We present an approach that includes temperature-dependent shell effects and fluctuations of the pairing field in the thermal shape fluctuation model (TSFM). We apply this approach to study the width of giant dipole resonance (GDR) in ${}^{97}$Tc, ${}^{120}$Sn and ${}^{208}$Pb. Our results demonstrate that the TSFM that includes pairing fluctuations can explain the recently observed quenching in the GDR width. We also show that to validate pairing prescriptions and the parameters involved, we require more and precise data.

arXiv commentAccepted for publication in Physical Review C

References in corpus (12)

• 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
• Critical behavior in the variation of GDR width at low temperature
• Pairing effect on the giant dipole resonance width at low temperature
• Probing the critical behavior in the evolution of GDR width at very low temperatures in A~100 mass region
• Measurement of Giant Dipole Resonance width at low temperature: A new experimental perspective
• Pairing reentrance in hot rotating nuclei
• Pairing in hot rotating nuclei
• Shear-Viscosity to Entropy-Density Ratio from Giant Dipole Resonances in Hot Nuclei
• 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

Cited by in corpus (2)

• Effects of thermal shape fluctuations and pairing fluctuations on the giant dipole resonance in warm nuclei
• Search for Jacobi shape transition in A $\sim 30$ nuclei