Ab initio computation of the longitudinal response function in $^{40}$Ca
Abstract
We present a consistent \emph{ab initio} computation of the longitudinal response function in Ca using the coupled-cluster and Lorentz integral transform methods starting from chiral nucleon-nucleon and three-nucleon interactions. We validate our approach by comparing our results for in He and the Coulomb sum rule in Ca against experimental data and other calculations. For in Ca we obtain a very good agreement with experiment in the quasi-elastic peak up to intermediate momentum transfers, and we find that final state interactions are essential for an accurate description of the data. This work presents a milestone towards \emph{ab initio} computations of neutrino-nucleus cross sections relevant for experimental long-baseline neutrino programs.
Keywords
Cite
@article{arxiv.2103.06786,
title = {Ab initio computation of the longitudinal response function in $^{40}$Ca},
author = {J. E. Sobczyk and B. Acharya and S. Bacca and G. Hagen},
journal= {arXiv preprint arXiv:2103.06786},
year = {2023}
}
Comments
6 pages, 3 figures