Complete alpha(7) m Lamb shift of helium triplet states

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10436088" target="_blank" >RIV/00216208:11320/21:10436088 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=EkQPyi6pyb" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=EkQPyi6pyb</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.103.042809" target="_blank" >10.1103/PhysRevA.103.042809</a>

Result language
angličtina
Original language name
Complete alpha(7) m Lamb shift of helium triplet states
Original language description
We have derived the complete formula for the alpha(7) m contribution to energy levels of an arbitrary triplet state of the helium atom, performed numerical calculations for the 2 S-3 and 2 P-3 states, and thus improved the theoretical accuracy of ionization energies of these states by more than an order of magnitude. Using the nuclear charge radius extracted from the muonic helium Lamb shift, we obtain the theoretical prediction in excellent agreement with the measured 2 S-3 - 2 P-3 transition energy [X. Zheng et al., Phys. Rev. Lett. 119, 263002 (2017)]. At the same time, we observe significant discrepancies with experiments for the 2 S-3 - 3 D-3 and 2 P-3 - 3(3)D transitions.
Czech name
—
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
<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
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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