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About possibility to search the electron EDM at the level 10-28 ÷10-30 e·cm and the constant of T-odd, P-odd scalar weak interaction of an electron with a nucleus at the level 10-5 ÷10-7 in the heavy atoms and ferroelectrics

V. G. Baryshevsky

hep-pharXiv:hep-ph/0508271

Abstract

The T-odd phenomenon of induction of the magnetic field by a static electric field provides to study the electron EDM and constants of T-odd, P-odd interaction of an electron with a nucleus. Measurement of this magnetic field for ferroelectric materials (like PbTiO3) at the level B~3 10-18 G allows to derive the electric dipole moment of an electron at the level de ~ 10-30 e cm and the constant of T-odd scalar weak interaction of an electron with a nucleus at the level k1nuc10-9. The atomic magnetometry makes possible to measure fields ~ 10-13 G/Hz now. This means that for 10 days operation one can expect to obtain B at the level B ~ 10-16G, and, therefore, the limits for de in PbTiO3 at the level de ~ 10-28 and k1nuc~10-7. that makes the discussed method beneficial for measuring de and k1nuc.

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