Leptogenesis due to oscillating Higgs field

Abstract

Abstract We propose a new leptogenesis scenario in which the lepton asymmetry and matter particles are simultaneously generated due to the coherent oscillating Higgs background. To demonstrate the possibility of our scenario, we consider the type-I seesaw model as an illuminating example and show the numerical analysis. In order to generate the required lepton number $$|n_L/s| = 2.4 \times 10^{-10}$$ | n L / s | = 2.4 × 10 - 10 , we find that the scales of the Higgs background oscillation is required to be higher than $$10^{14}$$ 10 14 GeV.