Distinguishing fission-like events from deep-inelastic collisions
arxiv(2024)
摘要
We propose two functions to distinguish fission-like events from
quasi-elastic (QE) scattering and deep inelastic collisions (DIC), for a better
analysis of the measured mass-total kinetic energy distributions of binary
fragments formed in fusion-fission reactions. We note that the ratio of capture
to DIC events evidently decreases with the decreasing of the depth of the
capture pocket predicted from the Skyrme energy density functional, with which
the capture pocket could be extracted from the measured mass-energy
distributions. Together with the improved quantum molecular dynamics
simulations, in which the typical contact time of the reaction partners is
smaller than 200 fm/c for QE and is larger than 600 fm/c for fission-like
events, we find that the ratio of capture to touching cross section
systematically increases with the pocket depth.
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