The GDR and dissipation in hot nuclei

✍ Scribed by P. Paul

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 616 KB
• Volume: 630
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(97)00746-x

✦ Synopsis

An overview is given of the status of experiments that use GDR "/-multiplicities (GDR clock) to extract nuclear dissipation as a function of nuclear temperature by timing the fission process from the compound nucleus equilibrium shape to the scission point. Results that indicate a rapid rise of dissipation with temperature are compared with the predictions of Fermi-liquid theory. The recent use of large BaF: arrays allows for improved data quality for heavy-ion excitation functions. Further predictions about the transition from Fermi liquid to a classical hydrodynamical medium and the evidence from strongly damped collisions using the neutron clock are also discussed.