6533b852fe1ef96bd12aac9b
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The deuteron-radius puzzle is alive: A new analysis of nuclear structure uncertainties
Nir BarneaOscar Javier HernandezOscar Javier HernandezOscar Javier HernandezAndreas EkströmChen JiN. Nevo DinurSonia BaccaSonia BaccaSonia Baccasubject
PhysicsNuclear and High Energy PhysicsNuclear Theory010308 nuclear & particles physicsNuclear TheoryNuclear structureFOS: Physical sciencesSigmaRadius01 natural scienceslcsh:QC1-999Lamb shiftNuclear Theory (nucl-th)Nuclear physicsDeuteriumError analysis0103 physical sciencesEffective field theory010306 general physicsNuclear ExperimentNuclear theorylcsh:Physicsdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-03-01 | Physics Letters B |