Zemach moments and radii of 2,3H and 3,4He

Understand

We present benchmark calculations of Zemach moments and radii of 2,3H and 3,4He using various few-body methods.

• Zemach moments are required to interpret muonic atom data measured by the CREMA collaboration at the Paul Scherrer Institute.
• Conversely, radii extracted from spectroscopic measurements can be compared with ab initio computations, posing stringent constraints on the nuclear model.
• For a given few-body method, different numerical procedures can be applied to compute these quantities.