The deuteron-radius puzzle is alive: A new analysis of nuclear structure uncertainties

Abstract

To shed light on the deuteron radius puzzle we analyze the theoretical uncertainties of the nuclear structure corrections to the Lamb shift in muonic deuterium. We find that the discrepancy between the calculated two-photon exchange correction and the corresponding experimentally inferred value by Pohl et al. [1] remain. The present result is consistent with our previous estimate, although the discrepancy is reduced from 2.6 $\sigma$ to 2 $\sigma$. The error analysis includes statistic as well as systematic uncertainties stemming from the use of nucleon-nucleon interactions derived from chiral effective field theory at various orders. We therefore conclude that nuclear theory uncertainty is more likely not the source of the discrepancy.

updated according to referee's comments

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• Zemach moments and radii of 2,3H and 3,4He
• Dispersive evaluation of the Lamb shift in muonic deuterium from chiral effective field theory
• Deuteron charge radius from the Lamb-shift measurement in muonic deuterium
• Light Nuclei from Lattice QCD: Spectrum, Structure and Reactions
• Probing uncertainties of nuclear structure corrections in light muonic atoms
• Muonic vs electronic dark forces: a complete EFT treatment for atomic spectroscopy
• Effective field theory for shallow P-wave states
• Revisiting the helium isotope-shift puzzle with improved uncertainties from nuclear structure corrections
• Bayesian analysis of nuclear polarizability corrections to the Lamb shift of muonic H-atoms and He-ions
• Forward doubly-virtual Compton scattering off an unpolarised deuteron in pionless effective field theory
• Exclusive Lepton Pair Production at the Electron-Ion Collider -- A Powerful Research Tool
• Ab initio models of atomic nuclei: challenges and new ideas
• Direct ab initio calculation of the ${}^4$He nuclear electric dipole polarizability
• Muonic Lithium atoms: nuclear structure corrections to the Lamb shift
• Demonstration of deuterium's enhanced sensitivity to symmetry violations governed by the Standard-Model Extension