Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1994-02-07
Phys.Rev. D51 (1995) 3955-3957
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, 1 figure (not included), Tex file, requires phyzzx, preprint SCIPP 93/45
Scientific paper
10.1103/PhysRevD.51.3955
The Schiff moment, $\smij$, is a parity and time reversal violating fermion-fermion coupling. The nucleus-electron Schiff moment generically gives the most important contribution to the electric dipole moments of atoms and molecules with zero net intrinsic electronic spin and nuclear spin ${1 \over 2}$. Here, the electromagnetic contribution to the Schiff moment, $\emij$, is considered. For a nucleon, the leading chirally violating contribution to this interaction is calculable in the chiral limit in terms of the parity and time reversal violating pion-nucleon coupling. For the Schiff moment of heavy nuclei, this chiral contribution is somewhat smaller than the finite size effect discussed previously in the literature.
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