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The Constrained NMSSM with right-handed neutrinos
In this article, we demonstrate that the inclusion of right-handed neutrino superfields in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) makes it possible to impose universality conditions on the soft supersymmetry-breaking parameters at the Grand Unification scale, alleviating many of t...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6445539/ https://www.ncbi.nlm.nih.gov/pubmed/31007581 http://dx.doi.org/10.1140/epjc/s10052-018-5689-0 |
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author | Cerdeño, David G. De Romeri, Valentina Martín-Lozano, Víctor Olive, Keith A. Seto, Osamu |
author_facet | Cerdeño, David G. De Romeri, Valentina Martín-Lozano, Víctor Olive, Keith A. Seto, Osamu |
author_sort | Cerdeño, David G. |
collection | PubMed |
description | In this article, we demonstrate that the inclusion of right-handed neutrino superfields in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) makes it possible to impose universality conditions on the soft supersymmetry-breaking parameters at the Grand Unification scale, alleviating many of the problems of the so-called Constrained NMSSM. We have studied the renormalization group equations of this model, showing that right-handed neutrinos greatly contribute to driving the singlet Higgs mass-squared parameter negative, which makes it considerably easier to satisfy the conditions for radiative electroweak symmetry breaking. The new fields also lead to larger values of the Standard Model Higgs mass, thus making it easier to reproduce the measured value. As a consequence, all bounds from colliders and low-energy observables can be fulfilled in wide areas of the parameter space. However, the relic density in these regions is generally too high requiring some form of late entropy production to dilute the density of the lightest supersymmetric particle. |
format | Online Article Text |
id | pubmed-6445539 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-64455392019-04-17 The Constrained NMSSM with right-handed neutrinos Cerdeño, David G. De Romeri, Valentina Martín-Lozano, Víctor Olive, Keith A. Seto, Osamu Eur Phys J C Part Fields Regular Article - Theoretical Physics In this article, we demonstrate that the inclusion of right-handed neutrino superfields in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) makes it possible to impose universality conditions on the soft supersymmetry-breaking parameters at the Grand Unification scale, alleviating many of the problems of the so-called Constrained NMSSM. We have studied the renormalization group equations of this model, showing that right-handed neutrinos greatly contribute to driving the singlet Higgs mass-squared parameter negative, which makes it considerably easier to satisfy the conditions for radiative electroweak symmetry breaking. The new fields also lead to larger values of the Standard Model Higgs mass, thus making it easier to reproduce the measured value. As a consequence, all bounds from colliders and low-energy observables can be fulfilled in wide areas of the parameter space. However, the relic density in these regions is generally too high requiring some form of late entropy production to dilute the density of the lightest supersymmetric particle. Springer Berlin Heidelberg 2018-04-09 2018 /pmc/articles/PMC6445539/ /pubmed/31007581 http://dx.doi.org/10.1140/epjc/s10052-018-5689-0 Text en © The Author(s) 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3 |
spellingShingle | Regular Article - Theoretical Physics Cerdeño, David G. De Romeri, Valentina Martín-Lozano, Víctor Olive, Keith A. Seto, Osamu The Constrained NMSSM with right-handed neutrinos |
title | The Constrained NMSSM with right-handed neutrinos |
title_full | The Constrained NMSSM with right-handed neutrinos |
title_fullStr | The Constrained NMSSM with right-handed neutrinos |
title_full_unstemmed | The Constrained NMSSM with right-handed neutrinos |
title_short | The Constrained NMSSM with right-handed neutrinos |
title_sort | constrained nmssm with right-handed neutrinos |
topic | Regular Article - Theoretical Physics |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6445539/ https://www.ncbi.nlm.nih.gov/pubmed/31007581 http://dx.doi.org/10.1140/epjc/s10052-018-5689-0 |
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