Leptogenesis, fermion masses and mixings in a SUSY SU(5) GUT with D 4 flavor symmetry

Abstract We propose a model of fermion masses and mixings based on SU(5) grand unified theory (GUT) and a D 4 flavor symmetry. This is a highly predictive 4D SU(5) GUT with a flavor symmetry that does not contain a triplet irreducible representation. The Yukawa matrices of quarks and charged leptons...

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Autores principales:	M. Miskaoui, M. A. Loualidi
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Beyond Standard Model Discrete Symmetries GUT Neutrino Physics Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/7451107c44ed4f2a8af4f17789b21da6
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spelling	oai:doaj.org-article:7451107c44ed4f2a8af4f17789b21da62021-11-21T12:41:00ZLeptogenesis, fermion masses and mixings in a SUSY SU(5) GUT with D 4 flavor symmetry10.1007/JHEP11(2021)1471029-8479https://doaj.org/article/7451107c44ed4f2a8af4f17789b21da62021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)147https://doaj.org/toc/1029-8479Abstract We propose a model of fermion masses and mixings based on SU(5) grand unified theory (GUT) and a D 4 flavor symmetry. This is a highly predictive 4D SU(5) GUT with a flavor symmetry that does not contain a triplet irreducible representation. The Yukawa matrices of quarks and charged leptons are obtained after integrating out heavy messenger fields from renormalizable superpotentials while neutrino masses are originated from the type I seesaw mechanism. The group theoretical factors from 24- and 45-dimensional Higgs fields lead to ratios between the Yukawa couplings in agreement with data, while the dangerous proton decay operators are highly suppressed. By performing a numerical fit, we find that the model captures accurately the mixing angles, the Yukawa couplings and the CP phase of the quark sector at the GUT scale. The neutrino masses are generated at the leading order with the prediction of trimaximal mixing while an additional effective operator is required to account for the baryon asymmetry of the universe (BAU). The model is remarkably predictive because only the normal neutrino mass ordering and the lower octant of the atmospheric angle are allowed while the CP conserving values of the Dirac neutrino phase δ CP are excluded. Moreover, the predicted values of the effective Majorana mass m ββ can be tested at future neutrinoless double beta decay experiments. An analytical and a numerical study of the BAU via the leptogenesis mechanism is performed. We focused on the regions of parameter space where leptogenesis from the lightest right-handed neutrino is successfully realized. Strong correlations between the parameters of the neutrino sector and the observed BAU are obtained.M. MiskaouiM. A. LoualidiSpringerOpenarticleBeyond Standard ModelDiscrete SymmetriesGUTNeutrino PhysicsNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-39 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Beyond Standard Model Discrete Symmetries GUT Neutrino Physics Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Beyond Standard Model Discrete Symmetries GUT Neutrino Physics Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 M. Miskaoui M. A. Loualidi Leptogenesis, fermion masses and mixings in a SUSY SU(5) GUT with D 4 flavor symmetry
description	Abstract We propose a model of fermion masses and mixings based on SU(5) grand unified theory (GUT) and a D 4 flavor symmetry. This is a highly predictive 4D SU(5) GUT with a flavor symmetry that does not contain a triplet irreducible representation. The Yukawa matrices of quarks and charged leptons are obtained after integrating out heavy messenger fields from renormalizable superpotentials while neutrino masses are originated from the type I seesaw mechanism. The group theoretical factors from 24- and 45-dimensional Higgs fields lead to ratios between the Yukawa couplings in agreement with data, while the dangerous proton decay operators are highly suppressed. By performing a numerical fit, we find that the model captures accurately the mixing angles, the Yukawa couplings and the CP phase of the quark sector at the GUT scale. The neutrino masses are generated at the leading order with the prediction of trimaximal mixing while an additional effective operator is required to account for the baryon asymmetry of the universe (BAU). The model is remarkably predictive because only the normal neutrino mass ordering and the lower octant of the atmospheric angle are allowed while the CP conserving values of the Dirac neutrino phase δ CP are excluded. Moreover, the predicted values of the effective Majorana mass m ββ can be tested at future neutrinoless double beta decay experiments. An analytical and a numerical study of the BAU via the leptogenesis mechanism is performed. We focused on the regions of parameter space where leptogenesis from the lightest right-handed neutrino is successfully realized. Strong correlations between the parameters of the neutrino sector and the observed BAU are obtained.
format	article
author	M. Miskaoui M. A. Loualidi
author_facet	M. Miskaoui M. A. Loualidi
author_sort	M. Miskaoui
title	Leptogenesis, fermion masses and mixings in a SUSY SU(5) GUT with D 4 flavor symmetry
title_short	Leptogenesis, fermion masses and mixings in a SUSY SU(5) GUT with D 4 flavor symmetry
title_full	Leptogenesis, fermion masses and mixings in a SUSY SU(5) GUT with D 4 flavor symmetry
title_fullStr	Leptogenesis, fermion masses and mixings in a SUSY SU(5) GUT with D 4 flavor symmetry
title_full_unstemmed	Leptogenesis, fermion masses and mixings in a SUSY SU(5) GUT with D 4 flavor symmetry
title_sort	leptogenesis, fermion masses and mixings in a susy su(5) gut with d 4 flavor symmetry
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/7451107c44ed4f2a8af4f17789b21da6
work_keys_str_mv	AT mmiskaoui leptogenesisfermionmassesandmixingsinasusysu5gutwithd4flavorsymmetry AT maloualidi leptogenesisfermionmassesandmixingsinasusysu5gutwithd4flavorsymmetry
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Leptogenesis, fermion masses and mixings in a SUSY SU(5) GUT with D 4 flavor symmetry

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