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Vacuum-polarization corrections to the parity-nonconserving 6s-7s transition amplitude in (133)Cs
W R Johnson1, I Bednyakov, G Soff
1Institüt für Theoretische Physik, Technische Universität Dresden, Mommenstrasse 13, D-01062 Dresden, Germany.
Physical Review Letters
|December 12, 2001
Abstract:
The dominant one-loop radiative corrections to atomic wave functions, those associated with vacuum polarization in the nuclear Coulomb field, are evaluated for the 6s-7s parity-nonconserving transition amplitude in (133)Cs. These corrections increase the size of this amplitude by 0.4% and, correspondingly, increase the difference between the experimental value of the weak charge Q(W)((133)Cs) and the value predicted by the standard model.