Quantum Monte Carlo Calculations of Magnetic Form Factors in Light Nuclei

G. Chambers-Wall,A. Gnech ,G. B. King ,S. Pastore ,M. Piarulli, R. Schiavilla, R.B. Wiringa

Phys. Rev. Lett. 133, 212501 (2024)
[arXiv:2407.03487]

We present quantum Monte Carlo calculations of magnetic form factors in A¼ 6–10 nuclei, based on Norfolk two- and three-nucleon interactions, and associated one- and two-body electromagnetic currents. Agreement with the available experimental data for 6Li, 7Li, 9Be, and 10B up to values of momentum transfer q∼ 3 fm−1 is achieved when two-nucleon currents are accounted for. We present a set of predictions for the magnetic form factors of 7Be, 8Li, 9Li, and 9C. In these systems, two-body currents account for∼40%–60% of the total magnetic strength. Measurements in any of these radioactive systems would provide valuable insights on the nuclear magnetic structure emerging from the underlying many- nucleon dynamics. A particularly interesting case is that of 7Be, as it would enable investigations of the magnetic structure of mirror nuclei.

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