Measurement of the radial matrix elements for the $6s^2{S}_{1/2}\to 7p^2{P}_J$ transitions in cesium

Abstract

We report measurements of the electric dipole matrix elements of the ${}^{133}$Cs   $6s{}^2{S}_{1/2}\to 7p{}^2{P}_{1/2}$ and $6s{}^2{S}_{1/2}\to 7p{}^2{P}_{3/2}$ transitions. Each of these determinations is based on direct, precise comparisons of the absorption coefficients between two absorption lines. For the $⟨6s{}^2{S}_{1/2}||r||7p{}^2{P}_{3/2}⟩$ matrix element, we measure the ratio of the absorption coefficient on this line with that of the D${}_1$ transition, $6s{}^2{S}_{1/2}\to 6p{}^2{P}_{1/2}$. The matrix element of the D${}_1$ line has been determined with high precision previously by many groups. For the $⟨6s{}^2{S}_{1/2}||r||7p{}^2{P}_{1/2}⟩$ matrix element, we measure the ratio of the absorption coefficient on this line with that of the $6s{}^2{S}_{1/2}\to 7p{}^2{P}_{3/2}$ transition. Our results for these matrix elements are $⟨6s{}^2{S}_{1/2}||r||7p{}^2{P}_{3/2}⟩=0.57417(57)a_0$ and $⟨6s{}^2{S}_{1/2}||r||7p{}^2{P}_{1/2}⟩=0.27810(45)a_0$. These measurements have implications for the interpretation of parity nonconservation in atoms.

12 pages, 9 figures, 6 tables

References in corpus (2)

• Precision lifetime measurement of the cesium $6P_{3/2}$ level using ultrafast pump-probe laser pulses
• Electric dipole matrix elements for the $6p{}^2{P}_J\to 7s{}^2{S}_{1/2}$ transition in atomic cesium

Cited by in corpus (1)

• High-precision measurement and ab initio calculation of the $(6s^{2}6p^2){}^3{P}_0\to {}^3{P}_2$ electric quadrupole transition amplitude in ${}^{208}$Pb