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arXiv · 2311.11676

Extracting neutron skin from elastic proton-nucleus scattering with deep neural network

G. H. Yang·Y. Kuang·Z. X. Yang·Z. P. Li
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Abstract

Based on the relativistic impulse approximation of proton-nucleus elastic scattering theory, the nucleon density distribution and neutron skin thickness of $^{48}$Ca are estimated via the deep learning method. The neural-network-generated densities are mainly compressed to be lower inside the nucleus compared with the results from the relativistic PC-PK1 density functional, resulting in a significant improvement on the large-angle scattering observables, both for the differential cross section and analyzing power. The neutron skin thickness of $^{48}$Ca is captured to be 0.211(11) fm. The relatively thicker neutron skin is deemed reasonable from the perspective of density functional analysis.

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G. H. Yang, Y. Kuang, Z. X. Yang, Z. P. Li. 2023-11-20. Extracting neutron skin from elastic proton-nucleus scattering with deep neural network. https://arxiv.org/abs/2311.11676

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