Electric Dipole Moments in PseudoDirac Gauginos
Abstract
The SUSY CP problem is one of serious problems in construction of realistic supersymmetric standard models. We consider the problem in a framework in which adjoint chiral multiplets are introduced and gauginos have Dirac mass terms induced by a U(1) gauge interaction in the hidden sector. This is realized in hidden sector models without singlet chiral multiplets, which are favored from a recent study of the Polonyi problem. We find that the dominant contributions to electron and neutron electric dipole moments (EDMs) in the model come from phases in the supersymmetric adjoint mass terms. When the supersymmetric adjoint masses are suppressed by a factor of \sim 100 compared with the Dirac ones, the electron and neutron EDMs are suppressed below the experimental bound even if the SUSY particle masses are around 1 TeV. Thus, this model works as a framework to solve the SUSY CP problem.
Keywords
Cite
@article{arxiv.hep-ph/0610383,
title = {Electric Dipole Moments in PseudoDirac Gauginos},
author = {Junji Hisano and Minoru Nagai and Tatsuya Naganawa and Masato Senami},
journal= {arXiv preprint arXiv:hep-ph/0610383},
year = {2008}
}
Comments
17 pages, 2 figures; typos are corrected; accepted for Phys. Lett. B