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arXiv · 2009.01761

Coulomb sum rule for $^4$He and $^{16}$O from coupled-cluster theory

J. E. Sobczyk·B. Acharya·S. Bacca·G. Hagen
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Abstract

We demonstrate the capability of coupled-cluster theory to compute the Coulomb sum rule for the $^4$He and $^{16}$O nuclei using interactions from chiral effective field theory. We perform several checks, including a few-body benchmark for $^4$He. We provide an analysis of the center-of-mass contaminations, which we are able to safely remove. We then compare with other theoretical results and experimental data available in the literature, obtaining a fair agreement. This is a first and necessary step towards initiating a program for computing neutrino-nucleus interactions from first principles and supporting the experimental long-baseline neutrino program with a state-of-the-art theory that can reach medium-mass nuclei.

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J. E. Sobczyk, B. Acharya, S. Bacca, G. Hagen. 2020-09-03. Coulomb sum rule for $^4$He and $^{16}$O from coupled-cluster theory. https://doi.org/10.1103/physrevc.102.064312

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