A simple motivated completion of the standard model below the Planck scale: Axions and right-handed neutrinos

We study a simple Standard Model (SM) extension, which includes three families of right-handed neutrinos with generic non-trivial flavor structure and an economic implementation of the invisible axion idea. We find that in some regions of the parameter space this model accounts for all experimentall...

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Main Author: Alberto Salvio
Format: Article
Language:English
Published: Elsevier 2015-04-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269315001781
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author Alberto Salvio
author_facet Alberto Salvio
author_sort Alberto Salvio
collection DOAJ
description We study a simple Standard Model (SM) extension, which includes three families of right-handed neutrinos with generic non-trivial flavor structure and an economic implementation of the invisible axion idea. We find that in some regions of the parameter space this model accounts for all experimentally confirmed pieces of evidence for physics beyond the SM: it explains neutrino masses (via the type-I see-saw mechanism), dark matter, baryon asymmetry (through leptogenesis), solves the strong CP problem and has a stable electroweak vacuum. The last property may allow us to identify the Higgs field with the inflaton. Keywords: Higgs, Vacuum stability, Axions, Right-handed neutrinos, Cosmic inflation
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spelling doaj.art-d8569a6254bd433a87f4b06986b5c32d2022-12-22T03:36:31ZengElsevierPhysics Letters B0370-26932015-04-01743428434A simple motivated completion of the standard model below the Planck scale: Axions and right-handed neutrinosAlberto Salvio0Departamento de Física Teórica, Universidad Autónoma de Madrid and Instituto de Física Teórica IFT-UAM/CSIC, Madrid, SpainWe study a simple Standard Model (SM) extension, which includes three families of right-handed neutrinos with generic non-trivial flavor structure and an economic implementation of the invisible axion idea. We find that in some regions of the parameter space this model accounts for all experimentally confirmed pieces of evidence for physics beyond the SM: it explains neutrino masses (via the type-I see-saw mechanism), dark matter, baryon asymmetry (through leptogenesis), solves the strong CP problem and has a stable electroweak vacuum. The last property may allow us to identify the Higgs field with the inflaton. Keywords: Higgs, Vacuum stability, Axions, Right-handed neutrinos, Cosmic inflationhttp://www.sciencedirect.com/science/article/pii/S0370269315001781
spellingShingle Alberto Salvio
A simple motivated completion of the standard model below the Planck scale: Axions and right-handed neutrinos
Physics Letters B
title A simple motivated completion of the standard model below the Planck scale: Axions and right-handed neutrinos
title_full A simple motivated completion of the standard model below the Planck scale: Axions and right-handed neutrinos
title_fullStr A simple motivated completion of the standard model below the Planck scale: Axions and right-handed neutrinos
title_full_unstemmed A simple motivated completion of the standard model below the Planck scale: Axions and right-handed neutrinos
title_short A simple motivated completion of the standard model below the Planck scale: Axions and right-handed neutrinos
title_sort simple motivated completion of the standard model below the planck scale axions and right handed neutrinos
url http://www.sciencedirect.com/science/article/pii/S0370269315001781
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