Update on nuclear structure effects in light muonic atoms

Hernandez, Oscar Javier; Dinur, Nir Nevo; Chen, Ji; Bacca, Sonia; Barnea, Nir

doi:10.1007/s10751-016-1371-9

Cited by 13 publications

(18 citation statements)

References 14 publications

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“…[17] and Ref. [18], are consistent within 0.6%. All theoretical calculations have been summarized by Krauth et al [19] which resulted in a recommended value of δ TPE =-1.7096(200) meV.…”

Section: Introductionsupporting

confidence: 58%

See 1 more Smart Citation

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

et al. 2018

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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 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.

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“…[17] and Ref. [18], are consistent within 0.6%. All theoretical calculations have been summarized by Krauth et al [19] which resulted in a recommended value of δ TPE =-1.7096(200) meV.…”

Section: Introductionsupporting

confidence: 58%

“…Because the latter is obtained from theoretical computations it is of paramount importance that all theoretical uncertainty contributions are thoroughly investigated. Several groups have calculated δ TPE with different methods [13][14][15][16][17][18]. The two most recent and most precise computations, Ref.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2018

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“…While, a comparison of separate contributions may be less accurate due to the fact that ab initio and dispersion relation methods are very different, the total δ TPE are in nice agreement with each other, with −15.46 (39) meV from Ref. [32,85] and -15.14 (49) meV from Ref. [83].…”

Section: µ 3 He +mentioning

confidence: 78%

Ab initio calculation of nuclear-structure corrections in muonic atoms

Chen

Bacca

Barnea

et al. 2018

J. Phys. G: Nucl. Part. Phys.

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The measurement of the Lamb shift in muonic hydrogen and the subsequent emergence of the proton-radius puzzle have motivated an experimental campaign devoted to measuring the Lamb shift in other light muonic atoms, such as muonic deuterium and helium. For these systems it has been shown that twophoton exchange nuclear structure corrections are the largest source of uncertainty and consequently the bottleneck for exploiting the experimental precision to extract the nuclear charge radius. Utilizing techniques and methods developed to study electromagnetic reactions in light nuclei, recent calculations of nuclear structure corrections to the muonic Lamb shift have reached unprecedented precision, reducing the uncertainty with respect to previous estimates by a factor of 5 in certain cases. These results will be useful for shedding light on the nature of the proton-radius puzzle and other open questions pertaining to it. Here, we review and update calculations for muonic deuterium and tritium atoms, and for muonic helium-3 and helium-4 ions. We present a thorough derivation of the formalism and discuss the results in relation to other approaches where available. We also describe how to assess theoretical uncertainties, for which the language of chiral effective field theory furnishes a systematic approach that could be further exploited in the future.Keywords: two-photon exchange, muonic atoms, few-nucleon dynamics arXiv:1806.03101v1 [nucl-th] 8 Jun 2018 ‡ Using perturbation theory up to third order, Friar calculated in [26] the nuclear finite-size effect through order (Zα) 6 .

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“…Further new measurements are anticipated [74] in muonic 3 He and 4 He, where nuclear structure effects are important for interpretation [75][76][77].…”

Section: New Muonic Atom Measurementsmentioning

confidence: 99%

Review of experimental and theoretical status of the proton radius puzzle

Hill

2017

EPJ Web Conf.

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Abstract. The discrepancy between the measured Lamb shift in muonic hydrogen and expectations from electron-proton scattering and regular hydrogen spectroscopy has become known as the proton radius puzzle, whose most "mundane" resolution requires a > 5σ shift in the value of the fundamental Rydberg constant. I briefly review the status of spectroscopic and scattering measurements, recent theoretical developments, and implications for fundamental physics.

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Update on nuclear structure effects in light muonic atoms

Abstract: We present calculations of the nuclear structure corrections to the Lamb shift in light muonic atoms, using state-of-the-art nuclear potentials. We outline updated results on finite nucleon size contributions.

Cited by 13 publications

References 14 publications

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

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

Ab initio calculation of nuclear-structure corrections in muonic atoms

Review of experimental and theoretical status of the proton radius puzzle

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