Measurement of the Ra${}^{+}$ $7p$ ${}^2{P}_{3/2}$ state lifetime

Abstract

We report a measurement of the radium ion's $7p$ ${}^2{P}_{3/2}$ state lifetime, $\tau =4.78(3)$ ns. The measured lifetime is in good agreement with theoretical calculations, and will enable a determination of the differential scalar polarizability of the narrow linewidth $7s$ ${}^2{S}_{1/2}\to$ $6d$ ${}^2{D}_{5/2}$ optical clock transition.

Main text 9 pages, 7 figures

References in corpus (6)

• Precision measurement of the branching fractions of the 4P3/2 decay of Ca II
• Investigations of Ra${}^{+}$ properties to test possibilities of new optical frequency standards
• Radium Ion Optical Clock
• Combining experiments and relativistic theory for establishing accurate radiative quantities in atoms: the lifetime of the ${}^2$P${}_{3/2}$ state in ${}^{40}$Ca${}^{+}$
• Measurement of the $7p{}^2{P}_{3/2}$ state branching fractions in ${\mathrm{Ra}}^{+}$
• Direct measurement of the $7s{}^2{S}_{1/2}\to$ $7p{}^2{P}_{3/2}$ transition frequency in ${}^{226}$Ra${}^{+}$

Cited by in corpus (4)

• Electric dipole transition amplitudes for atoms and ions with one valence electron
• QED radiative corrections to electric dipole amplitudes in heavy atoms
• Theoretical characterisation of the barium II and radium II ions
• Lifetimes of the Metastable $6\mathrm{d}{}^2{\mathrm{D}}_{5/2}$ and $6\mathrm{d}{}^2{\mathrm{D}}_{3/2}$ States of Ra${}^{+}$