Neutron Electric Dipole Moment from Supersymmetric Anomalous W-boson Coupling

Abstract

In the supersymmetric standard model (SSM) the $W$-boson could have a non-vanishing electric dipole moment (EDM) through a one-loop diagram mediated by the charginos and neutralinos. Then the $W$-boson EDM induces the EDMs of the neutron and the electron. We discuss these EDMs, taking into consideration the constraints from the neutron and electron EDMs at one-loop level induced by the charginos and squarks or sleptons. It is shown that the neutron and the electron could respectively have EDMs of order of $10^{-26}e$cm and $10^{-27}e$cm, solely owing to the $W$-boson EDM. Since these EDMs do not depend on the values of SSM parameters for the squark or slepton sector, they provide less ambiguous predictions for CP violation in the SSM.

19 pages, Latex type

References in corpus (3)

• Neutron Electric Dipole Moment in the Minimal Supersymmetric Standard Model
• The electric dipole moment of the neutron in the constrained minimally supersymmetric standard model
• Neutron Electric Dipole Moment under Non-Universal Soft SUSY Breaking Terms

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