Recoil corrections with finite nuclear size in hydrogenic systems

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10508330" target="_blank" >RIV/00216208:11320/25:10508330 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=XYo5soYpt8" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=XYo5soYpt8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.111.032820" target="_blank" >10.1103/PhysRevA.111.032820</a>

Result language
angličtina
Original language name
Recoil corrections with finite nuclear size in hydrogenic systems
Original language description
Formulas for the combined nuclear-recoil and finite-nuclear-size effects of orders (Z alpha)5 and (Z alpha)6 are derived without any expansion in the nuclear-charge radius rC, making them applicable to both electronic and muonic atoms. The obtained results are particularly relevant for high-precision determinations of root-mean-square charge radii from muonic atom spectroscopy. We demonstrate that calculations of the atomic isotope shift based on the widely used Breit approximation give rise to an unphysical nuclear-size contribution that is linear in the nuclear-charge radius rC at order (Z alpha)5. This spurious term vanishes in a full QED treatment, leaving the correct contribution quadratic in rC. For electronic atoms, this quadratic term is significantly smaller than the spurious linear contribution.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10300 - Physical sciences

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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