Distinguishing fission-like events from deep-inelastic collisions

Fuente: arXiv
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Main Authors: Yao, Hong, Li, Cheng, Zhou, Houbing, Wang, Ning
Format: Preprint
Published: 2024
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author Yao, Hong
Li, Cheng
Zhou, Houbing
Wang, Ning
author_facet Yao, Hong
Li, Cheng
Zhou, Houbing
Wang, Ning
contents 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.
format Preprint
id arxiv_https___arxiv_org_abs_2402_15224
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Distinguishing fission-like events from deep-inelastic collisions
Yao, Hong
Li, Cheng
Zhou, Houbing
Wang, Ning
Nuclear Theory
Nuclear Experiment
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.
title Distinguishing fission-like events from deep-inelastic collisions
topic Nuclear Theory
Nuclear Experiment
url https://arxiv.org/abs/2402.15224