Journal
PHYSICS LETTERS B
Volume 778, Issue -, Pages 377-383Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2018.01.043
Keywords
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Funding
- Natural Sciences and Engineering Research Council [NSERC SAPIN-2015-00031]
- National Research Council of Canada
- Deutsche Forschungsgemeinschaft DFG through Collaborative Research Center [The Low-Energy Frontier of the Standard Model] [SFB 1044]
- Cluster of Excellence [Precision Physics, Fundamental Interactions and Structure of Matter (PRISMA)]
- Swedish Research Council [2015-00225]
- Marie Sklodowska Curie Actions, Cofund [INCA 600398]
- Swedish Research Council [2015-00225] Funding Source: Swedish Research Council
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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 etal. [1] remain. The present result is consistent with our previous estimate, although the discrepancy is reduced from 2.6 sigma about 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. (c) 2018 The Authors. Published by Elsevier B.V.
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