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arXiv · hep-ph/9809381

Baryon Asymmetry and Dark Matter

M. Bolz·W. Buchmüller·M. Plümacher
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Abstract

We study the implications of a large baryogenesis temperature, $T_B = O(10^{10}$ GeV), on the mass spectrum of superparticles in supersymmetric extensions of the standard model. Models with a neutralino as lightest superparticle (LSP) are excluded. A consistent picture is obtained with the gravitino as LSP, followed by a higgsino-like neutralino (NSP). Gravitinos with masses from 10 to 100 GeV may be the dominant component of dark matter.

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M. Bolz, W. Buchmüller, M. Plümacher. 1998-09-21. Baryon Asymmetry and Dark Matter. https://doi.org/10.1016/s0370-2693(98)01342-2

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