Electric dipole moment of electron

We evaluate a new set of CP-violating two-loop Feynman diagrams involving W− and Z-bosons which give a large contribution to the electric dipole moment of the electron in a multi-Higgs model with spontaneous CP violation. This extends the work of Barr and Zee, who considered a two-loop diagram invol...

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Bibliographic Details
Published inNuclear physics. B Vol. 352; no. 1; pp. 45 - 58
Main Authors Leigh, R.G., Paban, S., Xu, R.-M.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 18.03.1991
Elsevier
Subjects
Classical and quantum physics: mechanics and fields
Exact sciences and technology
Physics
Quantum mechanics
Quark
Boson
Higgs model
CP violation
Feynman diagram
Electrons
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Summary:We evaluate a new set of CP-violating two-loop Feynman diagrams involving W− and Z-bosons which give a large contribution to the electric dipole moment of the electron in a multi-Higgs model with spontaneous CP violation. This extends the work of Barr and Zee, who considered a two-loop diagram involving a top quark and showed that the effect is much larger than the standard one-loop contribution.
ISSN:0550-3213
1873-1562
DOI:10.1016/0550-3213(91)90128-K