Ab initio calculation of the alpha-particle monopole transition form factor

Abstract

We present a parameter-free ab initio calculation of the $\hat{I}\pm$-particle monopole transition form factor in the framework of nuclear lattice effective field theory. We use a minimal nuclear interaction that was previously used to reproduce the ground state properties of light nuclei, medium-mass nuclei, and neutron matter simultaneously with no more than a few percent error in the energies and charge radii. The results for the monopole transition form factor are in good agreement with recent precision data from Mainz.

5+3 pages, 3+4 figures, version accepted in Physical Review Letters, title shortened, more details in the supplemental material, references updated