A model in which inflaton energy goes exclusively to a dark sector, delaying SM thermalization until a false-vacuum decay produces a GW background with present-day Omega_GW up to 3e-8.
Electroweak Baryogenesis and the Expansion Rate of the Universe
4 Pith papers cite this work. Polarity classification is still indexing.
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abstract
The standard requirement for the production of baryons at the electroweak phase transition, that the phase transition be first order and the sphaleron bound be satisfied, is predicated on the assumption of a radiation dominated universe at that epoch. One simple alternative - domination by the energy in a kinetic mode of a scalar field which scales as $1/a^6$ - gives a significantly weakened sphaleron bound for the preservation of a baryon asymmetry produced at a first-order phase transition, and allows the possibility that the observed baryon asymmetry be produced when the phase transition is second-order or cross-over. Such a phase of `kination' at the electroweak scale can occur in various ways as a scalar field evolves in an exponential potential after inflation.
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background 1representative citing papers
Constraints on sub-GeV inelastic dark matter are derived from cosmic-ray cooling in NGC 1068 by including elastic and deep inelastic scattering in a vector-portal model.
Spontaneous wash-in leptogenesis in Type II Seesaw with Majoron pNGB background enables baryon asymmetry generation alongside dark matter cogenesis for specific v_T, v_sigma and m_j ranges.
micrOMEGAs7 extends the micrOMEGAs code to compute dark matter relic density under user-defined non-standard cosmologies and adds updated experimental constraints.
citing papers explorer
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A New Origin of the Big Bang from Dark-Sector-Induced Vacuum Decay and Its Gravitational-Wave Signal
A model in which inflaton energy goes exclusively to a dark sector, delaying SM thermalization until a false-vacuum decay produces a GW background with present-day Omega_GW up to 3e-8.
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Probing Inelastic Dark Matter via Cosmic-Ray Upscattering in NGC 1068
Constraints on sub-GeV inelastic dark matter are derived from cosmic-ray cooling in NGC 1068 by including elastic and deep inelastic scattering in a vector-portal model.
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Type II Seesaw Leptogenesis in a Majoron background
Spontaneous wash-in leptogenesis in Type II Seesaw with Majoron pNGB background enables baryon asymmetry generation alongside dark matter cogenesis for specific v_T, v_sigma and m_j ranges.
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micrOMEGAs 7: Beyond standard cosmology
micrOMEGAs7 extends the micrOMEGAs code to compute dark matter relic density under user-defined non-standard cosmologies and adds updated experimental constraints.