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- W4308566475 abstract "Accurate $EF{}^1Sigma^+_g-X{}^1Sigma^+_g$ transition energies in molecular hydrogen were determined for transitions originating from levels with highly-excited vibrational quantum number, $v=11$, in the ground electronic state. Doppler-free two-photon spectroscopy was applied on vibrationally excited H$_2^*$, produced via the photodissociation of H$_2$S, yielding transition frequencies with accuracies of $45$ MHz or $0.0015$ cm$^{-1}$. An important improvement is the enhanced detection efficiency by resonant excitation to autoionizing $7ppi$ electronic Rydberg states, resulting in narrow transitions due to reduced ac-Stark effects. Using known $EF$ level energies, the level energies of $X(v=11, J=1,3-5)$ states are derived with accuracies of typically 0.002 cm$^{-1}$. These experimental values are in excellent agreement with, and are more accurate than the results obtained from the most advanced ab initio molecular theory calculations including relativistic and QED contributions." @default.
- W4308566475 created "2022-11-12" @default.
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- W4308566475 date "2016-09-21" @default.
- W4308566475 modified "2023-09-27" @default.
- W4308566475 title "Precision measurements and test of molecular theory in highly-excited vibrational states of H$_2$ $(v=11)$" @default.
- W4308566475 doi "https://doi.org/10.48550/arxiv.1609.06751" @default.
- W4308566475 hasPublicationYear "2016" @default.
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