Measurement of the 21Ne Zeeman frequency shift due to Rb-21Ne collisions
R. E. Stoner, R. L. Walsworth
Abstract
We compared the frequency shift of the 21Ne Zeeman resonance induced by polarized Rb vapor to the shift induced in the 3He Zeeman resonance. The 3He/Rb shift has recently been measured with high precision, permitting the conversion of our differential measurement to an absolute value for the 21Ne/Rb shift. We report a value of K = 31.8 +/- 2.8 for the Rb/21Ne enhancement factor at a temperature of 124.8 +/- 1.9 C. We propose high-precision differential contact shift measurements, the absolute accuracy of which would be limited by the error in the 3He contact shift.
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