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Probabilistic neural networks for improved analyses with phenomenological R-matrix

by Dan Lu, Chanhee Kim, Daniel Bardayan, Daniel Odell
Publication Type
Journal
Journal Name
Physical Review C
Publication Date
Page Number
054609
Volume
110
Issue
5

We present a method for measurement analyses based on probabilistic deep neural networks that provide several advantages over conventional analyses with phenomenological models. These include predicting physical quantities directly from data, the rapid generation of statistically robust uncertainties, and the ability to bypass some parameters that may induce ambiguities and complications in data analysis. As deep learning methods make predictions through “black boxes,” the uncertainty quantification is typically challenging. We use a probabilistic framework that provides thorough uncertainty quantification and is straightforward to follow in practice. With the network architecture based on the Transformer, we demonstrate the current method for predicting nuclear resonance parameters from scattering data using the phenomenological 𝑅-matrix model.