QED calculation of ionization energies of 1snd states in helium

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10421593" target="_blank" >RIV/00216208:11320/20:10421593 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=CgJNgEvv5X" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=CgJNgEvv5X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.102.012807" target="_blank" >10.1103/PhysRevA.102.012807</a>

Result language
angličtina
Original language name
QED calculation of ionization energies of 1snd states in helium
Original language description
Quantum electrodynamical (QED) calculations of ionization energies of the 1snd D states are performed for the helium atom. We reproduce the previously known relativistic and QED effects up to order m alpha(5) and extend the theory by calculating the complete m alpha(6) correction. The total contribution of the m alpha(6) effects is shown to be much smaller than previously estimated, due to a large cancellation between the radiative and nonradiative parts of this correction. As a result of our calculations, we confirm the previously reported deviations between measured transition energies and theoretical predictions for the nD-2S and nD-2P transitions. Possible reasons for this discrepancy are analyzed.
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
—
OECD FORD branch
10300 - Physical sciences

Project
<a href="/en/project/GA18-00918S" target="_blank" >GA18-00918S: Quantum Dynamics of Astrophysically Important Molecules</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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