@Article{Vatsyayan+Goswami2023,
author="Vatsyayan, D.
and Goswami, S.",
title="Lowering the scale of fermion triplet leptogenesis with two Higgs doublets",
journal="Physical Review D",
year="2023",
publisher="Amer Physical Soc",
volume="107",
number="3",
pages="035014--9pp",
abstract="In this paper, we consider the possibility of generating the observed baryon asymmetry of the Universe via leptogenesis in the context of a triplet fermion-mediated type-III seesaw model of neutrino mass. With a hierarchical spectrum of the additional fermions, the lower bound on the lightest triplet mass is similar to 1010 GeV for successful leptogenesis, a couple of orders higher than that of the type-I case. We investigate the possibility of lowering this bound in the framework of two-Higgs-doublet models. We find that the bounds can be lowered down to 107 GeV for a hierarchical spectrum. If we include the flavor effects, then a further lowering by one order of magnitude is possible. We also discuss if such lowering can be compatible with the naturalness bounds on the triplet mass.",
optnote="WOS:000982166600007",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5544), last updated on Fri, 16 Jun 2023 06:34:39 +0000",
issn="2470-0010",
doi="10.1103/PhysRevD.107.035014",
opturl="https://arxiv.org/abs/2208.12011",
opturl="https://doi.org/10.1103/PhysRevD.107.035014",
language="English"
}