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arXiv · hep-ph/9606260

GUT Baryogenesis after Preheating

Edward W. Kolb·Andrei Linde·Antonio Riotto
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Abstract

At the end of inflation the universe is frozen in a near zero-entropy state with energy density in a coherent scalar field and must be ``defrosted'' to produce the observed entropy and baryon number. We propose that the baryon asymmetry is generated by the decay of supermassive Grand Unified Theory (GUT) bosons produced non-thermally in a preheating phase after inflation. We show that baryogenesis is possible for an inflaton masses of order 10^{13} GeV and a GUT Higgs boson mass of order 10^{14} GeV, thus solving many drawbacks facing GUT baryogenesis in the old reheating scenario.

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Edward W. Kolb, Andrei Linde, Antonio Riotto. 1996-10-24. GUT Baryogenesis after Preheating. https://doi.org/10.1103/physrevlett.77.4290

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