Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2005-07-12
Phys.Rev. C72 (2005) 045503
Physics
Nuclear Physics
Nuclear Theory
13 pages, 7 figures
Scientific paper
We calculate the Schiff moment of the nucleus 199Hg, created by pi-N-N vertices that are odd under parity (P) and time-reversal (T). Our approach, formulated in diagrammatic perturbation theory with important core-polarization diagrams summed to all orders, gives a close approximation to the expectation value of the Schiff operator in the odd-A Hartree-Fock-Bogoliubov ground state generated by a Skyrme interaction and a weak P- and T-odd pion-exchange potential. To assess the uncertainty in the results, we carry out the calculation with several Skyrme interactions (the quality of which we test by checking predictions for the isoscalar-E1 strength distribution in 208Pb) and estimate most of the important diagrams we omit.
de Jesus J. H.
Engel Johannes
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