Fission dynamics using the decay of the giant dipole resonance
C R Morton; A Buda; P Paul; N P Shaw; J R Beene; N Gan; M L Halbert; D W Stracener; R L Varner; M Thoennessen; P Thirolf; I Dioszegi
Журнал:
Journal of Physics G: Nuclear and Particle Physics
Дата:
1997-10-01
Аннотация:
High-energy -rays from the decay of the giant dipole resonance built on excited states were measured in coincidence with fission for the reactions. Both the -ray multiplicity and the -fission angular correlation were determined; the latter quantity is sensitive to the deformation of the fissioning nucleus. This sensitivity has been used in order to estimate the breakdown of dynamical fission time into its pre- and post-saddle components. A statistical model analysis, using a version of <TT> CASCADE</TT> modified to include pre- and post-saddle delay times in order to simulate the effects of dynamics, can reproduce the data with and for a dynamical fission time .
364.9Кб