Atomic cesium is one of the most important systems for stringently testing the standard model of electroweak interactions and in looking for new physics beyond it. Precision measurements of parity nonconservation1 (PNC) in conjunction with highly accurate atomic-structure calculations for cesium2 allow an interpretation of experimental results in terms of fundamental parameters. With only eight hours of data the effect has been remeasured to 2%. The result is in agreement with our 1988 result, which required two months to reach 2%.

© 1994 Optical Society of America

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