Yukawa coupling unification in non-supersymmetric SO(10) models with an intermediate scale

We discuss the possibility of unifying in a simple and economical manner the Yukawa couplings of third generation fermions in a non-supersymmetric SO(10) model with an intermediate symmetry breaking, focusing on two possible patterns with intermediate Pati-Salam and minimal left-right groups. For th...

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Autores principales:	Abdelhak Djouadi, Ruiwen Ouyang, Martti Raidal
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/5780bbb7fb184767909edb1e5424e824
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spelling	oai:doaj.org-article:5780bbb7fb184767909edb1e5424e8242021-11-30T04:13:38ZYukawa coupling unification in non-supersymmetric SO(10) models with an intermediate scale0370-269310.1016/j.physletb.2021.136788https://doaj.org/article/5780bbb7fb184767909edb1e5424e8242022-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0370269321007280https://doaj.org/toc/0370-2693We discuss the possibility of unifying in a simple and economical manner the Yukawa couplings of third generation fermions in a non-supersymmetric SO(10) model with an intermediate symmetry breaking, focusing on two possible patterns with intermediate Pati-Salam and minimal left-right groups. For this purpose, we assume a minimal Yukawa sector at high energy, starting with two Higgs bi-doublets at the intermediate scale which then simply reduce to a two Higgs doublet model at the electroweak scale. We first enforce gauge coupling unification at the two-loop level by including the threshold corrections in the renormalization group running which are generated by the heavy fields that appear at the intermediate symmetry breaking scale. We then study the running of the Yukawa couplings of the top quark, bottom quark and tau lepton at two-loops in these two breaking schemes, when the appropriate matching conditions are imposed. We find that the unification of the third family Yukawa couplings can be achieved while retaining a viable spectrum, provided that the ratio of the vacuum expectation values of the two Higgs doublet fields is large, tan⁡β≈60.Abdelhak DjouadiRuiwen OuyangMartti RaidalElsevierarticlePhysicsQC1-999ENPhysics Letters B, Vol 824, Iss , Pp 136788- (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Abdelhak Djouadi Ruiwen Ouyang Martti Raidal Yukawa coupling unification in non-supersymmetric SO(10) models with an intermediate scale
description	We discuss the possibility of unifying in a simple and economical manner the Yukawa couplings of third generation fermions in a non-supersymmetric SO(10) model with an intermediate symmetry breaking, focusing on two possible patterns with intermediate Pati-Salam and minimal left-right groups. For this purpose, we assume a minimal Yukawa sector at high energy, starting with two Higgs bi-doublets at the intermediate scale which then simply reduce to a two Higgs doublet model at the electroweak scale. We first enforce gauge coupling unification at the two-loop level by including the threshold corrections in the renormalization group running which are generated by the heavy fields that appear at the intermediate symmetry breaking scale. We then study the running of the Yukawa couplings of the top quark, bottom quark and tau lepton at two-loops in these two breaking schemes, when the appropriate matching conditions are imposed. We find that the unification of the third family Yukawa couplings can be achieved while retaining a viable spectrum, provided that the ratio of the vacuum expectation values of the two Higgs doublet fields is large, tan⁡β≈60.
format	article
author	Abdelhak Djouadi Ruiwen Ouyang Martti Raidal
author_facet	Abdelhak Djouadi Ruiwen Ouyang Martti Raidal
author_sort	Abdelhak Djouadi
title	Yukawa coupling unification in non-supersymmetric SO(10) models with an intermediate scale
title_short	Yukawa coupling unification in non-supersymmetric SO(10) models with an intermediate scale
title_full	Yukawa coupling unification in non-supersymmetric SO(10) models with an intermediate scale
title_fullStr	Yukawa coupling unification in non-supersymmetric SO(10) models with an intermediate scale
title_full_unstemmed	Yukawa coupling unification in non-supersymmetric SO(10) models with an intermediate scale
title_sort	yukawa coupling unification in non-supersymmetric so(10) models with an intermediate scale
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/5780bbb7fb184767909edb1e5424e824
work_keys_str_mv	AT abdelhakdjouadi yukawacouplingunificationinnonsupersymmetricso10modelswithanintermediatescale AT ruiwenouyang yukawacouplingunificationinnonsupersymmetricso10modelswithanintermediatescale AT marttiraidal yukawacouplingunificationinnonsupersymmetricso10modelswithanintermediatescale
_version_	1718406865185931264

Yukawa coupling unification in non-supersymmetric SO(10) models with an intermediate scale

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