Supersymmtric Baryogenesis

Details Supersymmtric Baryogenesis Supersymmtric Baryogenesis

1992-09-16

arxiv.org/abs/hep-ph/9209245v1

Phys.Lett.B297:111-117,1992

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages 3 fig.,BUHEP-92-20

Scientific paper

10.1016/0370-2693(92)91078-N

Requiring that the baryon number of the universe be generated by anomalous electroweak interactions places strong constraints on the minimal supersymmetric standard model. In particular, the electric dipole moment of the neutron must be greater than $10^{-27}$e-cm. Improvement of the current experimental bound on the neutron's electric dipole moment by one order of magnitude would constrain the lightest chargino to be lighter than 88 GeV, and the the lightest neutralino to be lighter than 44 GeV. In extensions of this model with gauge singlet superfields all of these bounds are eliminated.

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