Direct comparison between Bayesian and frequentist uncertainty quantification for nuclear reactions

Understand

Until recently, uncertainty quantification in low energy nuclear theory was typically performed using frequentist approaches.

• However in the last few years, the field has shifted toward Bayesian statistics for evaluating confidence intervals.
• Although there are statistical arguments to prefer the Bayesian approach, no direct comparison is available.
• In this work, we compare, directly and systematically, the frequentist and Bayesian approaches to quantifying uncertainties in direct nuclear reactions.