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Linking the supersymmetric standard model to the cosmological constant

String theory has no parameter except the string scale M(S), so the Planck scale M(Pl), the supersymmetry-breaking scale [Image: see text] , the electroweak scale m(EW) as well as the vacuum energy density (cosmological constant) Λ are to be determined dynamically at any local minimum solution in th...

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Autores principales: Qiu, Yu-Cheng, Tye, S.-H. Henry
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7820089/
https://www.ncbi.nlm.nih.gov/pubmed/33500607
http://dx.doi.org/10.1007/JHEP01(2021)117
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author Qiu, Yu-Cheng
Tye, S.-H. Henry
author_facet Qiu, Yu-Cheng
Tye, S.-H. Henry
author_sort Qiu, Yu-Cheng
collection PubMed
description String theory has no parameter except the string scale M(S), so the Planck scale M(Pl), the supersymmetry-breaking scale [Image: see text] , the electroweak scale m(EW) as well as the vacuum energy density (cosmological constant) Λ are to be determined dynamically at any local minimum solution in the string theory landscape. Here we consider a model that links the supersymmetric electroweak phenomenology (bottom up) to the string theory motivated flux compactification approach (top down). In this model, supersymmetry is broken by a combination of the racetrack Kähler uplift mechanism, which naturally allows an exponentially small positive Λ in a local minimum, and the anti-D3-brane in the KKLT scenario. In the absence of the Higgs doublets from the supersymmetric standard model, one has either a small Λ or a big enough [Image: see text] , but not both. The introduction of the Higgs fields (with their soft terms) allows a small Λ and a big enough [Image: see text] simultaneously. Since an exponentially small Λ is statistically preferred (as the properly normalized probability distribution P(Λ) diverges at Λ = 0(+)), identifying the observed Λ(obs) to the median value Λ(50%) yields m(EW) ∼ 100 GeV. We also find that the warped anti-D3-brane tension has a SUSY-breaking scale [Image: see text] ∼ 100 m(EW) while the SUSY-breaking scale that directly correlates with the Higgs fields in the visible sector is [Image: see text] ≃ m(EW).
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spelling pubmed-78200892021-01-22 Linking the supersymmetric standard model to the cosmological constant Qiu, Yu-Cheng Tye, S.-H. Henry J High Energy Phys Regular Article - Theoretical Physics String theory has no parameter except the string scale M(S), so the Planck scale M(Pl), the supersymmetry-breaking scale [Image: see text] , the electroweak scale m(EW) as well as the vacuum energy density (cosmological constant) Λ are to be determined dynamically at any local minimum solution in the string theory landscape. Here we consider a model that links the supersymmetric electroweak phenomenology (bottom up) to the string theory motivated flux compactification approach (top down). In this model, supersymmetry is broken by a combination of the racetrack Kähler uplift mechanism, which naturally allows an exponentially small positive Λ in a local minimum, and the anti-D3-brane in the KKLT scenario. In the absence of the Higgs doublets from the supersymmetric standard model, one has either a small Λ or a big enough [Image: see text] , but not both. The introduction of the Higgs fields (with their soft terms) allows a small Λ and a big enough [Image: see text] simultaneously. Since an exponentially small Λ is statistically preferred (as the properly normalized probability distribution P(Λ) diverges at Λ = 0(+)), identifying the observed Λ(obs) to the median value Λ(50%) yields m(EW) ∼ 100 GeV. We also find that the warped anti-D3-brane tension has a SUSY-breaking scale [Image: see text] ∼ 100 m(EW) while the SUSY-breaking scale that directly correlates with the Higgs fields in the visible sector is [Image: see text] ≃ m(EW). Springer Berlin Heidelberg 2021-01-20 2021 /pmc/articles/PMC7820089/ /pubmed/33500607 http://dx.doi.org/10.1007/JHEP01(2021)117 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/) ), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Regular Article - Theoretical Physics
Qiu, Yu-Cheng
Tye, S.-H. Henry
Linking the supersymmetric standard model to the cosmological constant
title Linking the supersymmetric standard model to the cosmological constant
title_full Linking the supersymmetric standard model to the cosmological constant
title_fullStr Linking the supersymmetric standard model to the cosmological constant
title_full_unstemmed Linking the supersymmetric standard model to the cosmological constant
title_short Linking the supersymmetric standard model to the cosmological constant
title_sort linking the supersymmetric standard model to the cosmological constant
topic Regular Article - Theoretical Physics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7820089/
https://www.ncbi.nlm.nih.gov/pubmed/33500607
http://dx.doi.org/10.1007/JHEP01(2021)117
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