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arXiv 1903.02451nucl-th
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$μ$ D原子核结构不确定度的统计分析

A statistical analysis of the nuclear structure uncertainties in $μ$D

Oscar J. Hernandez, Sonia Bacca, Nir Barnea, Nir Nevo-Dinur, Andreas Ekström, Chen Ji

摘要:

最近确定的电荷半径的氘(D),三倍的精度相比,以前的测量使用测量的兰姆位移μ介子氘(μ D)。然而,muD值比世界平均CODATA-2014值小5.6 $σ$ [1]。为了阐明这种差异,我们分析的不确定性的原子核结构计算的兰姆位移的μ D和得出结论,核理论的不确定性是不可能的差异的来源。

英文摘要:

The charge radius of the deuteron (D), was recently determined to three times the precision compared with previous measurements using the measured Lamb shift in muonic deuterium (muD). However, the muD value is 5.6 $σ$ smaller than the world averaged CODATA-2014 value [1]. To shed light on this discrepancy we analyze the uncertainties of the nuclear structure calculations of the Lamb shift in muD and conclude that nuclear theory uncertainty is not likely to be the source of the discrepancy.

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