Strong CP violation and the neutron electric dipole form factor
arXiv:hep-ph/0510116 · doi:10.1134/S1063778807020160
Abstract
We calculate the neutron electric dipole form factor induced by the CP violating theta-term of QCD, within a perturbative chiral quark model which includes pion and kaon clouds. On this basis we derive the neutron electric dipole moment and the electron-neutron Schiff moment. From the existing experimental upper limits on the neutron electric dipole moment we extract constraints on the theta-parameter and compare our results with other approaches.
18 pages, 2 figures, accepted for publication in Phys. Atom. Nucl