Application of the quantal diffusion approach based on the stochastic mean-field theory

Date

2024-8-06

Author

Kayaalp, Arda

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

219
views

44
downloads

Cite This

This thesis investigates the application of the quantal diffusion approach based on Stochastic Mean-Field (SMF) theory to low-energy heavy-ion collisions, with a focus on multinucleon transfer (MNT) reactions. The study specifically examines the reactions of 58Fe + 208Pb at Ec.m. = 238.5 MeV, 36S + 238U at Ec.m. = 151.1 MeV, 64Ni + 130Te at Ec.m. = 184.3 MeV, and 206Pb + 118Sn at Ec.m. = 436.8 MeV. The Time-Dependent Hartree-Fock (TDHF) theory, widely utilized for analyzing reaction dynamics, is extended by incorporating SMF theory to address the limitations related to fluctuations and deviations in fragment mass and charge distributions. This approach allows for a more accurate description of the complex dynamics involved in MNT processes. Primary production yields and secondary cross-sections are thoroughly analysed after evaporation and calculated using the statistical de-excitation model with the GEMINI++ toolkit. The results demonstrate a good agreement with experimental data, validating the effectiveness of the SMF approach. This integration of SMF and GEMINI++ significantly enhances the precision of predicting reaction outcomes, contributing to a deeper understanding of nuclear reaction mechanisms.

Subject Keywords

Stochastic mean-field theory, Time-dependent Hartree-Fock theory, Multi-nucleon transfer mechanism, Low energy heavy-ion reactions

URI

https://hdl.handle.net/11511/110544

Collections

Graduate School of Natural and Applied Sciences, Thesis