TY - JOUR
T1 - The deuteron-radius puzzle is alive
T2 - A new analysis of nuclear structure uncertainties
AU - Hernandez, O. J.
AU - Ekström, A.
AU - Nevo Dinur, N.
AU - Ji, C.
AU - Bacca, S.
AU - Barnea, N.
N1 - Publisher Copyright:
© 2018
PY - 2018/3/10
Y1 - 2018/3/10
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85044789799&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2018.01.043
DO - 10.1016/j.physletb.2018.01.043
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AN - SCOPUS:85044789799
SN - 0370-2693
VL - 778
SP - 377
EP - 383
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -