Lifetime and Collisional Depopulation Cross Section for the 14<sup>2</sup>D<sub>3/2</sub>State of Rb
TL;DRAbstract
The lifetime r and the cross section a for depopulation induced by collisions with ground-state Rb atoms were measured for the 14 2D3 / 2 state of Rb. The experiment was performed in the gas-cell conditions in a range of Rb vapour temperatures in the vicinity of 340 K. The lifetime value r = 1970(130) ns, agrees with the theoretical prediction with allowance for the influence of blackbody radiation as well as of the effects due to core polarizability and spin-orbit interaction. The measured cross section Q = 6.5(3.1) x 10 -12 cm2 is close to the geometrical cross section. This agrees with similar observations made by other authors for the case of the lower n 2D states of Rb.
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The lifetime r and the cross section a for depopulation induced by collisions with ground-state Rb atoms were measured for the 14 2D3 / 2 state of Rb. The experiment was performed in the gas-cell conditions in a range of Rb vapour temperatures in the vicinity of 340 K. The lifetime value r = 1970(130) ns, agrees with the theoretical prediction with allowance for the influence of blackbody radiation as well as of the effects due to core polarizability and spin-orbit interaction. The measured cross section Q = 6.5(3.1) x 10 -12 cm2 is close to the geometrical cross section. This agrees with similar observations made by other authors for the case of the lower n 2D states of Rb.
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