Abstract
Background: Quasifission is the main reaction channel hindering the formation of superheavy nuclei (SHN). Its understanding will help to optimize entrance channels for SHN studies. Quasifission also provides a probe to understand the influence of shell effects in the formation of the fragments.
Purpose: Investigate the role of shell effects in quasifission and their interplay with the orientation of the deformed target in the entrance channel.
Methods: collisions are studied with the time-dependent Hartree-Fock approach for a range of angular momenta and orientations.
Results: Unlike similar reactions with a target, no significant shell effects which could be attributed to the “doubly magic” nucleus are found. However, the octupole deformed shell gap at seems to strongly influence quasifission in the most-central collisions.
Conclusions: Shell effects similar to those observed in fission affect the formation of quasifission fragments. Mass-angle correlations could be used to experimentally isolate the fragments influenced by octupole shell gaps.
2 More- Received 18 June 2019
DOI:https://doi.org/10.1103/PhysRevC.100.024610
©2019 American Physical Society