GUT Baryogenesis after Preheating
高能物理 - 唯象学
2009-09-29 v2 天体物理学
摘要
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.
引用
@article{arxiv.hep-ph/9606260,
title = {GUT Baryogenesis after Preheating},
author = {Edward W. Kolb and Andrei Linde and Antonio Riotto},
journal= {arXiv preprint arXiv:hep-ph/9606260},
year = {2009}
}
备注
4 pages, version to be published in Phys. Rev. Lett