QED radiative corrections to parity nonconservation in heavy atoms
High Energy Physics - Phenomenology
2009-08-18 v1 Atomic Physics
Abstract
The self-energy and vertex QED radiative corrections (Z alpha^2 f(Z alpha)) are shown to give a large negative contribution to the parity nonconserving (PNC) amplitude in heavy atoms. The correction -0.7(2)% found for the 6s-7s PNC amplitude in Cs brings the experimental result for this transition into agreement with the standard model. The calculations are based on a new identity that expresses the radiative corrections to the PNC matrix element via corrections to the energy shifts induced by the finite nuclear size.
Cite
@article{arxiv.hep-ph/0206124,
title = {QED radiative corrections to parity nonconservation in heavy atoms},
author = {M. Yu. Kuchiev and V. V. Flambaum},
journal= {arXiv preprint arXiv:hep-ph/0206124},
year = {2009}
}
Comments
Revtex, 6 pages, 2 figures