Light-particle emission from the fissioning nuclei 126Ba, 188Pt and (266,272,278)/110: theoretical predictions and experimental results

Abstract

We present a comparison of our model treating fission dynamics in conjunction with light-particle (n, p, alpha) evaporation with the available experimental data for the nuclei 126Ba, 188Pt and three isotopes of the element Z=110. The dynamics of the symmetric fission process is described through the solution of a classical Langevin equation for a single collective variable characterizing the nuclear deformation along the fission path. A microscopic approach is used to evaluate the emission rates for pre-fission light particles. Entrance-channel effects are taken into account by generating an initial spin distribution of the compound nucleus formed by the fusion of two deformed nuclei with different relative orientations.

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Cited by in corpus (6)

• Prescission neutron multiplicity and fission probability from Langevin dynamics of nuclear fission
• Competition between fusion-fission and quasifission processes in the ${}^{32}$S+${}^{182,184}$W reactions
• A critical analysis of the modelling of dissipation in fission
• Mean first passage time for nuclear fission and the emission of light particles
• Manifestation of transient effects in fission induced by relativistic heavy-ion collisions
• Revisit to the yield ratio of triton and ${}^3$He as an indicator of neutron-rich neck emission