Theoretical constraints on supersymmetric models: Perturbative unitarity vs. vacuum stability

Theoretical constraints on supersymmetric models: Perturbative unitarity vs. vacuum stability

There are nowadays strong experimental constraints on supersymmetric theories from the Higgs measurements as well as from the null results in Sparticle searches. However, even the parameter spaces which are in agreement with experimental data can be further constrained by using theoretical considera...

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Main Author: Florian Staub
Format: Article
Language:English
Published: Elsevier 2019-02-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269318309675
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spelling doaj-96bb8a4e6f5e47e5bc548dedab91bcaf2020-11-24T22:45:59ZengElsevierPhysics Letters B0370-26932019-02-01789203209Theoretical constraints on supersymmetric models: Perturbative unitarity vs. vacuum stabilityFlorian Staub0Institute for Theoretical Physics (ITP), Karlsruhe Institute of Technology, Engesserstraße 7, D-76128 Karlsruhe, Germany; Institute for Nuclear Physics (IKP), Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany; Correspondence to: Institute for Theoretical Physics (ITP), Karlsruhe Institute of Technology, Engesserstraße 7, D-76128 Karlsruhe, Germany.There are nowadays strong experimental constraints on supersymmetric theories from the Higgs measurements as well as from the null results in Sparticle searches. However, even the parameter spaces which are in agreement with experimental data can be further constrained by using theoretical considerations. Here, we discuss for the MSSM and NMSSM the impact of perturbative unitarity as well as of the stability of the one-loop effective potential. We find in the case of the MSSM, that vacuum stability is always the stronger constraint. On the other side, the situation is more diverse in the NMSSM and one should always check both kind of constraints.http://www.sciencedirect.com/science/article/pii/S0370269318309675
collection DOAJ
language English
format Article
sources DOAJ
author Florian Staub
spellingShingle Florian Staub
Theoretical constraints on supersymmetric models: Perturbative unitarity vs. vacuum stability
Physics Letters B
author_facet Florian Staub
author_sort Florian Staub
title Theoretical constraints on supersymmetric models: Perturbative unitarity vs. vacuum stability
title_short Theoretical constraints on supersymmetric models: Perturbative unitarity vs. vacuum stability
title_full Theoretical constraints on supersymmetric models: Perturbative unitarity vs. vacuum stability
title_fullStr Theoretical constraints on supersymmetric models: Perturbative unitarity vs. vacuum stability
title_full_unstemmed Theoretical constraints on supersymmetric models: Perturbative unitarity vs. vacuum stability
title_sort theoretical constraints on supersymmetric models: perturbative unitarity vs. vacuum stability
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2019-02-01
description There are nowadays strong experimental constraints on supersymmetric theories from the Higgs measurements as well as from the null results in Sparticle searches. However, even the parameter spaces which are in agreement with experimental data can be further constrained by using theoretical considerations. Here, we discuss for the MSSM and NMSSM the impact of perturbative unitarity as well as of the stability of the one-loop effective potential. We find in the case of the MSSM, that vacuum stability is always the stronger constraint. On the other side, the situation is more diverse in the NMSSM and one should always check both kind of constraints.
url http://www.sciencedirect.com/science/article/pii/S0370269318309675
work_keys_str_mv AT florianstaub theoreticalconstraintsonsupersymmetricmodelsperturbativeunitarityvsvacuumstability
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