Non-thermal leptogenesis in supersymmetric 3-3-1 model with inflationary scenario

TL;DR

This paper explores a non-thermal leptogenesis mechanism within a supersymmetric 3-3-1 model incorporating inflation, where heavy neutrinos are produced via inflaton decay, linking neutrino masses, inflation, and baryon asymmetry.

Contribution

It introduces a novel non-thermal leptogenesis scenario in a supersymmetric 3-3-1 model with inflation, emphasizing neutrino mass generation and inflaton decay processes.

Findings

Successful neutrino mass generation compatible with inflationary scenario

Non-thermal leptogenesis achieved through inflaton decay at GUT-scale mass

Constraints on neutrino mass and inflaton-neutrino mass ratio from cosmological data

Abstract

We study a leptogenesis scenario in which the heavy Majorana neutrinos are produced non-thermally in inflaton decays in the supersymmetric economical SU(3)_C X SU(3)_L X U(1)_X model with inflationary scenario, and for this purpose neutrino masses play the key role. Due to the inflaton with mass in the GUT scale, the model under consideration provides successful neutrino masses, which is different from ones without inflationary scenario. The lepton-number-violating interactions among the inflaton and right-handed neutrinos appear at the one-loop level, and this is a reason for non-thermal leptogenesis scenario. The bound followed from the gravitino abundance and the cosmological constraint on neutrino mass/the neutrino oscillation data is m_\nu 3 \simeq \frac{0.05}{\delta_{eff}} eV. By taking the reheating temperature as low as T_R= 10^6 GeV, we get a limit on the ratio of masses of the light heavies neutrino to those of the inflaton to be \fr{M_{R1}}{M_{\phi}} = 0.87.