High Energy Physics - Phenomenology
[Submitted on 15 Feb 2018
(v1)
, last revised 15 May 2018 (this version, v2)]
Title: Non-thermal Leptogenesis after Majoron Hilltop Inflation
Title: 非热轻子生成在马约拉纳山脊暴胀之后
Abstract: We analyse non-thermal leptogenesis after models of Majoron hilltop inflation, where the scalar field that provides masses for the right-handed neutrinos and sneutrinos via its vacuum expectation value acts as the inflaton. We discuss different realisations of Majoron inflation models with different hilltop shapes and couplings to the right-handed (s)neutrinos. To study the non-thermally produced baryon asymmetry in these models, we numerically solve the relevant Boltzmann equations. In contrast to previous studies, we include the effects from resonant sneutrino particle production during preheating. We find that these effects can result in an enhancement of the produced baryon asymmetry by more than an order of magnitude. This can significantly change the favoured parameter regions of these models.
Submission history
From: Kenneth Marschall [view email][v1] Thu, 15 Feb 2018 16:39:13 UTC (2,209 KB)
[v2] Tue, 15 May 2018 15:39:45 UTC (2,209 KB)
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