Precision measurement of parity nonconservation in cesium

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

doi:10.1139/p99-002

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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54 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	7-75
Number of pages	69
Journal	Canadian Journal of Physics
Volume	77
Issue number	1
DOIs	https://doi.org/10.1139/p99-002
Publication status	Published - 1999 Jan
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1139/p99-002

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AB - 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.

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Precision measurement of parity nonconservation in cesium

Abstract

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