1998/11/30 by Darwin Chang, Wai-Yee Keung, Apostolos Pilaftsis · 4 citations
Physics and Astronomy · #Particle physics theoretical and experimental studies #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevlett.82.900
published as Phys.Rev.Lett.82:900-903,1999; Erratum-ibid.83:3972,1999 · Erratum appended in the paper: EDM predictions are by a factor 2 larger than those given in the published version
openalex publication_date 1999/02/01 · arxiv created 1999/09/07 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We calculate a new type of two-loop contribution to the electric dipole moments of the electron and neutron in supersymmetric theories. The new contributions are originated from the potential CP violation in the trilinear couplings of the Higgs bosons to the scalar-top or the scalar-bottom quarks. These couplings did not receive stringent constraints directly. The electric dipole moments are induced through a mechanism analogous to that due to Barr and Zee [Phys. Rev. Lett. 65, 21 (1990)]. We find observable effects for a sizable portion of the parameter space related to the third generation scalar quarks in the minimal supersymmetric standard model which cannot be excluded by earlier considerations.