Improved access to the fine-structure constant with the simplest atomic systems

• URL: http://arxiv.org/abs/2006.14261v1
• Date: Thu, 25 Jun 2020 09:09:41 GMT
• Title: Improved access to the fine-structure constant with the simplest atomic systems
• Authors: H. Cakir, N. S. Oreshkina, I. A. Valuev, V. Debierre, V. A. Yerokhin, C. H. Keitel, Z. Harman
• Abstract summary: We show that in an appropriately weighted difference of the bound-electron $g$ factor and the ground state energy, nuclear structural effects can be effectively suppressed. This method is anticipated to deliver an independent value of $alpha$ via existing or near-future combined Penning trap and x-ray spectroscopic technology.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A means to extract the fine-structure constant $\alpha$ from precision spectroscopic data on one-electron ions is presented. We show that in an appropriately weighted difference of the bound-electron $g$ factor and the ground state energy, nuclear structural effects can be effectively suppressed. This method is anticipated to deliver an independent value of $\alpha$ via existing or near-future combined Penning trap and x-ray spectroscopic technology, and enables decreasing the uncertainty of $\alpha$ by orders of magnitude.

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