https://doi.org/10.1140/epja/i2006-10427-7
PAVI 2006
Theoretical overview of atomic parity violation
Recent developments and challenges
1
Physics Department, University of Nevada, 89557, Reno, NV, USA
2
Petersburg Nuclear Physics Institute, Leningrad district, 188300, Gatchina, Russia
* e-mail: andrei@unr.edu
Received:
31
August
2006
Accepted:
18
March
2007
Published online:
10
July
2007
Recent advances in interpreting the most accurate-to-date measurement of atomic parity violation in Cs are reviewed. The inferred nuclear weak charge, Q W( ^133Cs ) = - 72.65(28)expt(36)theor , agrees with the prediction of the standard model at 1σ level. Further improved interpretation is limited by an accuracy of solving the basic correlation problem of the atomic structure. We report on our progress in solving this problem within the relativistic coupled-cluster formalism. We include single, double and triple electronic excitations in the coupled-cluster expansion. Numerical results for energies, electric-dipole matrix elements, and hyperfine-structure constants of Cs are presented.
PACS: 32.80.Ys Weak-interaction effects in atoms – / 31.15.Dv Coupled-cluster theory – / 32.10.Fn Fine and hyperfine structure – / 32.70.Cs Oscillator strengths, lifetimes, transition moments –
© Società Italiana di Fisica and Springer-Verlag, 2007
