Resonant leptogenesis and TM $$_1$$ 1 mixing in minimal type-I seesaw model with S $$_4$$ 4 symmetry

Abstract We present an S $$_4$$ 4 flavour symmetric model within a minimal seesaw framework resulting in mass matrices that leads to TM $$_1$$ 1 mixing. Minimal seesaw is realized by adding two right-handed neutrinos to the Standard Model. The model predicts Normal Hierarchy (NH) for neutrino masses...

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Autores principales:	Bikash Thapa, Ng. K. Francis
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/f847205c4acd43ef92f2b03a31f8fa33
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spelling	oai:doaj.org-article:f847205c4acd43ef92f2b03a31f8fa332021-12-05T12:09:08ZResonant leptogenesis and TM $$_1$$ 1 mixing in minimal type-I seesaw model with S $$_4$$ 4 symmetry10.1140/epjc/s10052-021-09859-21434-60441434-6052https://doaj.org/article/f847205c4acd43ef92f2b03a31f8fa332021-12-01T00:00:00Zhttps://doi.org/10.1140/epjc/s10052-021-09859-2https://doaj.org/toc/1434-6044https://doaj.org/toc/1434-6052Abstract We present an S $$_4$$ 4 flavour symmetric model within a minimal seesaw framework resulting in mass matrices that leads to TM $$_1$$ 1 mixing. Minimal seesaw is realized by adding two right-handed neutrinos to the Standard Model. The model predicts Normal Hierarchy (NH) for neutrino masses. Using the constrained six-dimensional parameter space of the model, we have evaluated the effective Majorana neutrino mass, which is the parameter of interest in neutrinoless double beta decay experiments. The possibility of explaining baryogenesis via resonant leptogenesis is also examined within the model. A non-zero, resonantly enhanced CP asymmetry generated from the decay of right-handed neutrinos at the TeV scale is studied, considering flavour effects. The evolution of lepton asymmetry is discussed by solving the set of Boltzmann equations numerically and obtain the value of baryon asymmetry to be $$\|\eta _B\| = 6.3 \times 10^{-10}$$ \| η B \| = 6.3 × 10 - 10 with the choice of right-handed neutrino mass, $$M_1 = 10$$ M 1 = 10 TeV and mass splitting, $$d \simeq 10^{-8}$$ d ≃ 10 - 8 .Bikash ThapaNg. K. FrancisSpringerOpenarticleAstrophysicsQB460-466Nuclear and particle physics. Atomic energy. RadioactivityQC770-798ENEuropean Physical Journal C: Particles and Fields, Vol 81, Iss 12, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Bikash Thapa Ng. K. Francis Resonant leptogenesis and TM $$_1$$ 1 mixing in minimal type-I seesaw model with S $$_4$$ 4 symmetry
description	Abstract We present an S $$_4$$ 4 flavour symmetric model within a minimal seesaw framework resulting in mass matrices that leads to TM $$_1$$ 1 mixing. Minimal seesaw is realized by adding two right-handed neutrinos to the Standard Model. The model predicts Normal Hierarchy (NH) for neutrino masses. Using the constrained six-dimensional parameter space of the model, we have evaluated the effective Majorana neutrino mass, which is the parameter of interest in neutrinoless double beta decay experiments. The possibility of explaining baryogenesis via resonant leptogenesis is also examined within the model. A non-zero, resonantly enhanced CP asymmetry generated from the decay of right-handed neutrinos at the TeV scale is studied, considering flavour effects. The evolution of lepton asymmetry is discussed by solving the set of Boltzmann equations numerically and obtain the value of baryon asymmetry to be $$\|\eta _B\| = 6.3 \times 10^{-10}$$ \| η B \| = 6.3 × 10 - 10 with the choice of right-handed neutrino mass, $$M_1 = 10$$ M 1 = 10 TeV and mass splitting, $$d \simeq 10^{-8}$$ d ≃ 10 - 8 .
format	article
author	Bikash Thapa Ng. K. Francis
author_facet	Bikash Thapa Ng. K. Francis
author_sort	Bikash Thapa
title	Resonant leptogenesis and TM $$_1$$ 1 mixing in minimal type-I seesaw model with S $$_4$$ 4 symmetry
title_short	Resonant leptogenesis and TM $$_1$$ 1 mixing in minimal type-I seesaw model with S $$_4$$ 4 symmetry
title_full	Resonant leptogenesis and TM $$_1$$ 1 mixing in minimal type-I seesaw model with S $$_4$$ 4 symmetry
title_fullStr	Resonant leptogenesis and TM $$_1$$ 1 mixing in minimal type-I seesaw model with S $$_4$$ 4 symmetry
title_full_unstemmed	Resonant leptogenesis and TM $$_1$$ 1 mixing in minimal type-I seesaw model with S $$_4$$ 4 symmetry
title_sort	resonant leptogenesis and tm $$_1$$ 1 mixing in minimal type-i seesaw model with s $$_4$$ 4 symmetry
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/f847205c4acd43ef92f2b03a31f8fa33
work_keys_str_mv	AT bikashthapa resonantleptogenesisandtm11mixinginminimaltypeiseesawmodelwiths44symmetry AT ngkfrancis resonantleptogenesisandtm11mixinginminimaltypeiseesawmodelwiths44symmetry
_version_	1718372229906956288

Resonant leptogenesis and TM $$_1$$ 1 mixing in minimal type-I seesaw model with S $$_4$$ 4 symmetry

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