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Thermal leptogenesis in extended supersymmetric seesaw
High Energy Physics - Phenomenology · Submitted 1 Aug 2006
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Leptogenesis can occur at the TeV scale through the decay of a singlet Sigma, thereby avoiding the gravitino crisis.
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The abstract, sentence by sentence
We consider an extended supersymmetric SO(10) seesaw model with only doublet Higgs scalars, in which neutrino masses are suppressed by the scale of D-parity violation. Leptogenesis can occur at the TeV scale through the decay of a singlet Sigma, thereby avoiding the gravitino crisis. Washout of the asymmetry can be effectively suppressed by the absence of direct couplings of Sigma to leptons.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We consider an extended supersymmetric SO(10) seesaw model with only doublet Higgs scalars, in which neutrino masses are suppressed by the scale of D-parity violation. | contribution 0.74 | 0.45 | 0.09 | asserted 0.97 |
| s1 | Leptogenesis can occur at the TeV scale through the decay of a singlet Sigma, thereby avoiding the gravitino crisis. | result 0.55 | 0.43 | 0.46 | hedged possibility 0.85 |
| s2 | Washout of the asymmetry can be effectively suppressed by the absence of direct couplings of Sigma to leptons. | result 0.82 | 0.52 | 0.19 | hedged possibility 0.58 |
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Original abstract
We consider an extended supersymmetric SO(10) seesaw model with only doublet Higgs scalars, in which neutrino masses are suppressed by the scale of D-parity violation. Leptogenesis can occur at the TeV scale through the decay of a singlet Sigma, thereby avoiding the gravitino crisis. Washout of the asymmetry can be effectively suppressed by the absence of direct couplings of Sigma to leptons.
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References
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2 arXiv papers cite this in 2 sentences
Papers citing it · 1 sentence without a confident label
Cites it as background 1 paper
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For low scale leptogenesis in various beyond Standard Model frameworks, see, e.g., incorporating flavor effects [ref] , by adding extra scalar fields [ref] , resonant leptogenesis [ref] , right-handed sector leptogenesis [ref] , wash-in leptogenesis [ref] , and by decoupling neutrino mass and leptogenesis [ref] .
Thermal leptogenesis, dark matter, and gravitational waves from an extended canonical seesaw scenario · Introduction · 0.96
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