Possible Suppression of Neutron EDM

Employing generalized Schiff's transformation on electric dipole moments (EDM) in quantum field theory, we show that the chromoelectric EDM lagrangian density is transformed into the electric EDM term with a new coefficient. Under the new constraint on the EDM operators, the neutron EDM can be described by a unique combination of electric EDM $d_f$ and chromoelectric EDM ${\tilde d}_f$ of quarks. If the special relation of $\displaystyle{d_f={e_f\over{2g_s}}{\tilde d}_f}$ holds, then the neutron EDM is suppressed significantly.Comment: 9 pages, Late

No Area Law in QCD

Wilson's area law in QCD is critically examined. It is shown that the expectation value of the Wilson loop integral $\exp(\int iA_\mu dx^\mu)$ in the strong coupling limit vanishes when we employ the conjugate Wilson action which has a proper QED action in the continuum limit. The finite value of Wilson loop with the Wilson action is due to the result of the artifact. The fact that his area law is obtained even for QED simply indicates that the area law is unphysical.Comment: 4 pages, no figur

Microscopic Calculations of Nuclear EDM

We carry out the microscopic calculations of the atomic EDM in deuterium, Xe and Hg atomic systems. Due to Schiff's theorem, we obtain the atomic EDM only from the finite nuclear size effects, but it is found that the atomic EDM is appreciably larger than expected. This is essentially due to the new mechanism in which the nuclear excitations are taken into account while atomic states stay in the ground state. The EDM of deuterium is found to be $d_D \simeq 0.017 d_n$ while the EDM of Xe and Hg become $d_{\rm Xe} \simeq 1.6 d_n$ and $d_{{\rm Hg}} \simeq -2.8 d_n$, respectively. It turns out that the new constraint on the neutron EDM becomes $d_n \simeq (0.37\pm 0.17 \pm 0.14)\times 10^{-28} {\rm e}\cdot {\rm cm}$.Comment: 19 page