Development of Nuclear Energy Density Functionals from Optimization to Uncertainty Analysis
Julkaistu sarjassa
JYU DissertationsTekijät
Päivämäärä
2020Tekijänoikeudet
© The Author & University of Jyväskylä
2020:115 | 2021:86 | 2022:92 | 2023:115 | 2024:124 | 2025:6
This doctoral thesis covers the different aspects of the development of nuclear energy
density functionals (EDFs). The nuclear EDFs are still the only microscopic
models that can be applied along the whole nuclear chart. Despite their versatile
applicability to predict various properties of experimentally unknown nuclei, the
shortcomings of present state-of-the-art EDFs have become apparent. The deficiencies
of these models must be studied, and this gained knowledge must be used to
create better novel approaches.
In this thesis an uncertainty analysis of the UNEDF models is carried out.
Since nuclear EDFs contain a set of parameters that must be fitted to experimental
data, they carry statistical uncertainty that propagates into theoretical predictions.
Even though error estimates are important by themselves, the uncertainty analysis
may also bring additional information as to where the deficiencies of the studied
model lie. Thereby the uncertainty propagation of the UNEDF models is studied
in detail in the thesis with emphasis regarding the contributions to the errors given
by different model parameters.
The optimization processes of nuclear EDFs are discussed by explaining different
optimization strategies but also by demonstrating the difficulties of the task.
Since the fitting data often includes properties of both single nuclei and infinite
nuclear matter (INM), analytical formulas of INM properties are derived from a
novel interaction, namely from the regularized finite-range pseudopotential.
...
Julkaisija
Jyväskylän yliopistoISBN
978-951-39-8170-9ISSN Hae Julkaisufoorumista
2489-9003Julkaisuun sisältyy osajulkaisuja
- Artikkeli I: Haverinen, T., & Kortelainen, M. (2017). Uncertainty propagation within the UNEDF models. Journal of Physics G: Nuclear and Particle Physics, 44 (4), 044008. DOI: 10.1088/1361-6471/aa5e07. JYX: jyx.jyu.fi/handle/123456789/54039.
- Artikkeli II: Haverinen, T., Kortelainen, M., Dobaczewski, J., & Bennaceur, K. (2019). Towards a novel energy density functional for beyond-mean-field calculations with pairing and deformation. Acta Physica Polonica B, 50 (3), 269-274. DOI: 10.5506/APhysPolB.50.269
- Artikkeli III: Bennaceur, Karim; Dobaczewski, Jacek; Haverinen,Tiia; Kortelainen, Markus (2020). Regularized pseudopotential for mean-field calculations. In INPC2019 : 27th International Nuclear Physics Conference (Journal of Physics : Conference Series, 1643. IOP Publishing Ltd, 012112. DOI: 10.1088/1742-6596/1643/1/012112
- Artikkeli IV: Bennaceur, K., Dobaczewski, J., Haverinen, T., Kortelainen, M. (2020). Properties of spherical and deformed nuclei using regularized pseudopotentials in nuclear DFT. Journal of Physics G: Nuclear and Particle Physics 47 (10), 105101. DOI: 10.1088/1361-6471/ab9493
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