Nuclear polarizability of helium isotopes in atomic transitions
classification
⚛️ nucl-th
physics.atom-ph
keywords
heliumnuclearatomicisotopespolarizabilitytransitionaccurateamounts
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We estimate the nuclear polarizability correction to atomic transition frequencies in various helium isotopes. This effect is non-negligible for high precision tests of quantum electrodynamics or accurate determination of the nuclear charge radius from spectroscopic measurements in helium atoms and ions. In particular, it amounts to $28(3)$ kHz for 1S-2S transition in 4He+.
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