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

O. J. Hernandez, A. Ekström, N. Nevo Dinur, C. Ji, S. Bacca, N. Barnea

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

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 σ to about 2 σ. 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.

Original languageAmerican English
Pages (from-to)377-383
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume778
DOIs
StatePublished - 10 Mar 2018

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Publisher Copyright:
© 2018

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