Smallness of the Nuclear Polarization Effect in the Hyperfine Structure of Heavy Muonic Atoms as a Stimulus for Next-Generation Experiments

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dc.contributor.authorVandeleur, J.
dc.contributor.authorSanamyan, G.
dc.contributor.authorSmits, O.R.
dc.contributor.authorValuev, I.A.
dc.contributor.authorOreshkina, N.S.
dc.contributor.authorGinges, J.S.M.
dc.date.issued2025
dc.description.abstractThere is renewed interest in studies of muonic atoms, which may provide detailed information on nuclear structure. A major limiting factor in the interpretation of measurements is the nuclear polarization contribution. We propose a method to determine this contribution to the hyperfine structure in muonic atoms from a combination of theory and experiment for hydrogenlike ions and muonic atoms. Applying the method to ²⁰³’²⁰⁵ Tl and ²⁰⁹ Bi , for which there are H-like ion and muonic atom hyperfine experimental data, we find that the nuclear polarization contribution for these systems is small and place a limit on its size of less than 10% the total hyperfine splitting. We have also performed direct calculations of the nuclear polarization contribution using a semianalytical model, which indicate that it may be as much as two orders of magnitude smaller. Therefore, the nuclear polarization correction to the hyperfine structure of muonic atoms does not represent a limiting factor for next-generation experiments.
dc.description.statementofresponsibilityJ. Vandeleur, G. Sanamyan, O. R. Smits, I. A. Valuev, N. S. Oreshkina, J. S. M. Ginges
dc.identifier.citationPhysical Review Letters, 2025; 134(9):093003-1-093003-5
dc.identifier.doi10.1103/physrevlett.134.093003
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.orcidSanamyan, G. [0000-0002-2459-1402]
dc.identifier.urihttps://hdl.handle.net/2440/147773
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.granthttp://purl.org/au-research/grants/arc/FT170100452
dc.relation.granthttp://purl.org/au-research/grants/arc/DP230101685
dc.rights© 2025 American Physical Society
dc.source.urihttps://doi.org/10.1103/physrevlett.134.093003
dc.subjectmuonic atoms; nuclear polarization; hyperfine structure; hydrogenlike ions
dc.titleSmallness of the Nuclear Polarization Effect in the Hyperfine Structure of Heavy Muonic Atoms as a Stimulus for Next-Generation Experiments
dc.typeJournal article
pubs.publication-statusPublished online

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