Nuclear recoil correction to the g factor of boron-like argon

TL;DR

This paper calculates the nuclear recoil correction to the g factor of boron-like argon ions, providing updated theoretical values relevant for ongoing experimental measurements.

Contribution

It introduces a detailed calculation of the nuclear recoil effect using the Breit approximation and screening potential, improving theoretical accuracy for boron-like argon.

Findings

Updated g-factor values for 2P_1/2 and 2P_3/2 states of boron-like argon.

Quantitative estimates of higher-order contributions to the recoil effect.

Theoretical results align with ongoing experimental efforts.

Abstract

The nuclear recoil effect to the g factor of boron-like ions is investigated. The one-photon-exchange correction to the nuclear recoil effect is calculated in the non-relativistic approximation for the nuclear recoil operator and in the Breit approximation for the interelectronic-interaction operator. The screening potential is employed to estimate the higher-order contributions. The updated g-factor values are presented for the ground 2P_1/2 and first excited 2P_3/2 states of B-like argon 40^Ar^13+, which are presently being measured by the ARTEMIS group at GSI.