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

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

2001-12-20

arxiv.org/abs/physics/0112071v1

Physics

Atomic Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevA.66.020101

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 \beta and, 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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