Evaporation residue cross-sections as a probe for nuclear dissipation in the fission channel of a hot rotating nucleus

Abstract

Evaporation residue cross-sections are calculated in a dynamical description of nuclear fission in the framework of the Langevin equation coupled with statistical evporation of light particles. A theoretical model of one-body nuclear friction which was developed earlier, namely the chaos-weighted wall formula, is used in this calculation for the 224Th nucleus. The evaporation residue cross-section is found to be very sensitive to the choice of nuclear friction. The present results indicate that the chaotic nature of the single-particle dynamics within the nuclear volume may provide an explanation for the strong shape-dependence of nuclear friction which is usually required to fit experimental data.

arXiv comment12 pages including 4 figures

References in corpus (4)

• Fission Hindrance in hot 216Th: Evaporation Residue Measurements
• Prescission neutron multiplicity and fission probability from Langevin dynamics of nuclear fission
• Fission widths of hot nuclei from Langevin dynamics
• Nuclear fission: The "onset of dissipation" from a microscopic point of view

Cited by in corpus (3)

• Transient effects in fission evidenced from new experimental signatures
• Fragmentation of spherical radioactive heavy nuclei as a novel probe of transient effects in fission
• Investigating the fission dynamics of the following neutron shell closed nuclei within a stochastic dynamical approach: 210Po, 212Rn, and 213Fr