CP violating electron-nucleon interactions in multi-Higgs doublet and leptoquark models
Journal
Physics Letters B
Journal Volume
283
Journal Issue
3-4
Pages
348-352
Date Issued
1992
Author(s)
Abstract
CP violating electron-nucleon interactions and the resulting atomic EDM are studied in several models. In the standard model these interactions are very small and are well below the experimental upper bounds. In multi-Higgs doublet models. The four-Fermi interactions, N̄Nēγ5e and N̄γ5Nēe, can be quite large. In some range of parameters the contribution of these interactions to the atomic EDM can exceed the contribution of the electron EDM. In leptoquark models the contribution from the tensor interaction, N̄σμνNēσμνγ5e, is the dominant one in Hg, Xe and TIF. © 1992.
Type
journal article