Thermal inflation, baryogenesis and axions
arXiv:0807.3607 · doi:10.1088/1126-6708/2009/01/015
Abstract
In a previous paper, we proposed a simple extension of the Minimal Supersymmetric Standard Model which gives rise to thermal inflation and baryogenesis in a natural and remarkably consistent way. In this paper, we consider the special case of our model, which is the minimal way to incorporate a Peccei-Quinn symmetry. The axino/flatino becomes the lightest supersymmetric particle with $m_\axino \sim 1$ to $10 \GeV$ and is typically over-produced during the flaton decay. Interestingly though, the dark matter abundance is minimized for $m_\axino \sim 1 \GeV$, to $10^{12} \GeV$ and $|μ| \sim 400 \GeV$ to $2 \TeV$ at an abundance coincident with the observed abundance and with significant amounts of both axions and axinos. Futhermore, for these values the baryon abundance naturally matches the observed abundance.
53 pages, 20 figures. Figures reformatted, minor changes in Section 3, references added
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Cited by in corpus (37)
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- Dynamics of oscillating scalar field in thermal environment
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- New stability results for Einstein scalar gravity
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- PQ-symmetry for a small Dirac neutrino mass, dark radiation and cosmic neutrinos
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- Constraining Affleck-Dine Leptogenesis after Thermal Inflation