Precision measurement of parity nonconservation in cesium

C. S. Wood, S. C. Bennett, J. L. Roberts, D. Cho, C. E. Wieman

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53 Citations (Scopus)


The measurement of parity nonconservation (PNC) in atomic cesium is discussed in detail. With a spin-polarized atomic beam, this experiment achieves a fractional uncertainty of 0.35% in the measurement of the PNC amplitude for the transition between the 6S and 7S states of cesium, the lowest uncertainty of atomic PNC to date. By comparing the PNC amplitude on two hyperfine transitions, we measure for the first time the nuclear-spin-dependent contribution that arises from the nuclear anapole moment. A major portion of this paper describes the characterization and elimination of systematic errors.

Original languageEnglish
Pages (from-to)7-75
Number of pages69
JournalCanadian Journal of Physics
Issue number1
Publication statusPublished - 1999 Jan
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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