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Leptogenesis due to oscillating Higgs field

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arxiv 2005.08037 v3 pith:EUMVI22P submitted 2020-05-16 hep-ph

Leptogenesis due to oscillating Higgs field

classification hep-ph
keywords higgsbackgroundleptogenesisleptonoscillatingrequiredscenarioanalysis
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 $|n_L/s| = 2.4 \times 10^{-10}$, we find that the scales of the Higgs background oscillation and the lightest right-handed neutrinos mass are required to be higher than $10^{14}$ GeV

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