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Measurement of the 6s - 7p transition probabilities in atomic cesium and a revised value for the weak charge Q_W

A. A. Vasilyev·I. M. Savukov·M. S. Safronova·H. G. Berry
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Abstract

We have measured the 6s - 7p_{1/2,3/2} transition probabilities in atomic cesium using a direct absorption technique. We use our result plus other previously measured transition rates to derive an accurate value of the vector transition polarizability βand, consequently, re-evaluate the weak charge Q_W. Our derived value Q_W=-72.65(49) agrees with the prediction of the standard model to within one standard deviation.

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A. A. Vasilyev, I. M. Savukov, M. S. Safronova, H. G. Berry. 2001-12-20. Measurement of the 6s - 7p transition probabilities in atomic cesium and a revised value for the weak charge Q_W. https://doi.org/10.1103/physreva.66.020101

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