Vacuum-Polarization Corrections to Parity-Nonconserving Effects in Atomic Systems

Author： Bednyakov I.   Johnson W. R.   Plunien G.   Soff G.  

Publisher： Springer Publishing Company

ISSN： 0304-3843

Source： Hyperfine Interactions, Vol.146, Iss.1-4, 2003-01, pp. : 67-70

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Abstract

The dominant one-loop vacuum-polarization correction to atomic wave functions are evaluated for the 6s–7s parity nonconserving (PNC) E1 transition amplitude in cesium. This correction increases the size of the PNC amplitude by 0.4% and thus increases the difference between the experimental value of the weak charge QW and the one predicted by the standard model.

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