Generation of neutrino dark matter, baryon asymmetry, and radiation after quintessential inflation

Abstract

We construct a model explaining dark matter, baryon asymmetry and reheating in quintessential inflation model. Three generations of right-handed neutrinos having hierarchical masses, and the light scalar field leading to self-interaction of active neutrinos are introduced. The lightest sterile neutrino is a dark matter candidate produced by a Dodelson-Widrow mechanism in the presence of a new light scalar field, while the heaviest and the next heaviest sterile neutrinos produced by gravitational particle production are responsible for the generation of the baryon asymmetry. Reheating is realized by spinodal instabilities of the Standard Model Higgs field induced by the non-minimal coupling to the scalar curvature, which can solve overproduction of gravitons and curvature perturbation created by the Higgs condensation.

19 pages, 1 figure

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Cited by in corpus (2)

• Constraining the quintessential $\alpha$-attractor inflation through dynamical horizon exit method
• Reheating constraints and the $H_0$ tension in Quintessential Inflation