Parity nonconservation in atoms; past work and trapped atom future |
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| Authors: | Carl E. Wieman |
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| Affiliation: | (1) Joint Institute for Laboratory Astrophysics, University of Colorado and National Institute of Standards and Technology, 80309-0440, Colorado, USA;(2) Department of Physics, University of Colorado, 80309-0440 Boulder, Colorado, USA |
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| Abstract: | Parity nonconservation has now been measured in atomic cesium with a fractional uncertainty of 2%. This was done by observing the 6S–7S laser excited transition rate in a  handed apparatus. When combined with recent precise calculations of the cesium atomic structure, this provides an important test of the Standard Model. Efforts are under way to achieve a more sensitive test by measuring parity nonconservation in a series of radioactive cesium isotopes which have been trapped using laser light. |
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