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Uncertainty-quantified reaction modeling via data-driven multi-objective optimization.

ORAL · Invited

Abstract

We have recently introduced a new multi-objective optimization approach that allows us to determine uncertainty-quantified

nuclear reaction parameters in the Hauser-Feshbach framework by simultaneously accounting for a precise theoretical description of

all available experimental data across multiple reaction channels in a given region of the nuclear chart. From this analysis, we capture parameter correlations and estimate

data-driven uncertainties for theoretical parameters of optical potentials and of level densities. We extract uncertainty-quantified resonance spacing values for all nuclei in the optimization network and thus propose estimated values for both stable and unstable isotopes. In this talk, we present the implementation of our approach in the Ni-Ge region and preliminary results of the same analysis for nuclei around 96Zr.

Publication: New approach for the quantification of uncertainties in reaction modeling via data-driven multi-objective optimization.<br>N. Dimitrakopoulos, G. Perdikakis, F. Montes, P. Gastis,<br>S. A. Kuvin, H. Y. Lee, P. Tsintari, and A. V. Voinov, submitted to Physical Review Letters

Presenters

  • Georgios Perdikakis

    Central Michigan University

Authors

  • Georgios Perdikakis

    Central Michigan University

  • Nikolaos Dimitrakopoulos

    Central Michigan University

  • Fernando Montes

    Facility for Rare Isotope Beams

  • Panagiotis Gastis

    Los Alamos National Laboratory (LANL)

  • Sean A Kuvin

    Los Alamos National Laboratory (LANL)

  • Hye Young Lee

    Los Alamos National Laboratory (LANL)

  • Pelagia Tsintari

    Facility for Rare Isotope Beams / Michigan State University

  • Alexander Voinov

    Ohio University