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Dynamics of Evaporation-Fission and Nuclear Dissipation Modelling in Low and High-Energy Fission

This study explores the dynamics of evaporation-fission processes, focusing on nuclear dissipation and its influence on fission cross-sections for various nuclides including (^{235}text{Np}) and (^{238}text{U}). Utilizing a semi-empirical Monte Carlo code rooted in statistical nuclear reaction theory, we analyze the mass split and neutron-to-proton ratio at scission points. Through this work, we aim to enhance understanding of both low-energy and high-energy fission phenomena and their implications for nuclide production and nuclear physics applications.

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Dynamics of Evaporation-Fission and Nuclear Dissipation Modelling in Low and High-Energy Fission

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  1. GSI/Santiago fission model ABLA - Dynamic evaporation-fission with modelling of dissipation PROFI - Nuclide production in fission

  2. ABLAImportance of nuclear dissipationPartial fission cross sectionWidth of Z-distributions Jurado et al., PRL 93

  3. ABLA Fission cross section Low-energy fission: High-energy fission: 235Np 238U (1 A GeV) + p  Bernas et al., NPA725 Gavron et al., PRC13

  4. 238U 208Pb PROFI • Semi-empirical Monte-Carlo code theoretically based on the application of the statistical model of nuclear reactions to the concept of fission channels • Mass split - determined near the saddle point, N/Z at the scission

  5. PROFIFF distributions Low-energy fission: High-energy fission:

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