Smallness of Baryon Asymmetry from Split Supersymmetry

Details Smallness of Baryon Asymmetry from Split Supersymmetry Smallness of Baryon Asymmetry from Split Supersymmetry

2005-01-26

arxiv.org/abs/hep-ph/0501240v1

Phys.Rev. D71 (2005) 121303

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, no figure

Scientific paper

10.1103/PhysRevD.71.121303

The smallness of the baryon asymmetry in our universe is one of the greatest mysteries and may originate from some profound physics beyond the standard model. We investigate the Affleck-Dine baryogenesis in split supersymmetry, and find that the smallness of the baryon asymmetry is directly related to the hierarchy between the supersymmetry breaking squark/slepton masses and the weak scale. Put simply, the baryon asymmetry is small because of the split mass spectrum.

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