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Conditions on supersymmetry soft-breaking terms from GUTs
We study the effect of integrating out the heavy fields in a supersymmetric GUT which does not contain small mass parameters in the limit of exact supersymmetry. The trilinear ($A$) and bilinear ($B$) coefficients of the supersymmetry soft-breaking terms of the low-energy effective theory are relate...
Autores principales: | , |
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Lenguaje: | eng |
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1993
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Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(93)90165-E http://cds.cern.ch/record/251268 |
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author | Giudice, G.F. Roulet, E. |
author_facet | Giudice, G.F. Roulet, E. |
author_sort | Giudice, G.F. |
collection | CERN |
description | We study the effect of integrating out the heavy fields in a supersymmetric GUT which does not contain small mass parameters in the limit of exact supersymmetry. The trilinear ($A$) and bilinear ($B$) coefficients of the supersymmetry soft-breaking terms of the low-energy effective theory are related in a simple and model-independent way to those of the underlying theory. {}From these relations, we obtain the bound $|B|\ge 2$, which, together with the requirements of stability of the potential and electroweak symmetry breaking, imposes severe constraints on the space of allowed supersymmetric parameters. In models based on supergravity with a flat K\"ahler metric, we obtain $B=2$, instead of the relation $B=A-1$ usually used in phenomenological applications. The low-energy theory contains also a supersymmetric mass term $\mu$ for the two Higgs doublets, which is of the order of the supersymmetry-breaking scale. |
id | cern-251268 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 1993 |
record_format | invenio |
spelling | cern-2512682023-03-14T20:46:09Zdoi:10.1016/0370-2693(93)90165-Ehttp://cds.cern.ch/record/251268engGiudice, G.F.Roulet, E.Conditions on supersymmetry soft-breaking terms from GUTsParticle Physics - TheoryParticle Physics - PhenomenologyWe study the effect of integrating out the heavy fields in a supersymmetric GUT which does not contain small mass parameters in the limit of exact supersymmetry. The trilinear ($A$) and bilinear ($B$) coefficients of the supersymmetry soft-breaking terms of the low-energy effective theory are related in a simple and model-independent way to those of the underlying theory. {}From these relations, we obtain the bound $|B|\ge 2$, which, together with the requirements of stability of the potential and electroweak symmetry breaking, imposes severe constraints on the space of allowed supersymmetric parameters. In models based on supergravity with a flat K\"ahler metric, we obtain $B=2$, instead of the relation $B=A-1$ usually used in phenomenological applications. The low-energy theory contains also a supersymmetric mass term $\mu$ for the two Higgs doublets, which is of the order of the supersymmetry-breaking scale.We study the effect of integrating out the heavy fields in a supersymmetric GUT which does not contain small mass parameters in the limit of exact supersymmetry. The trilinear ($A$) and bilinear ($B$) coefficients of the supersymmetry soft-breaking terms of the low-energy effective theory are related in a simple and model-independent way to those of the underlying theory. {}From these relations, we obtain the bound $|B|\ge 2$, which, together with the requirements of stability of the potential and electroweak symmetry breaking, imposes severe constraints on the space of allowed supersymmetric parameters. In models based on supergravity with a flat K\"ahler metric, we obtain $B=2$, instead of the relation $B=A-1$ usually used in phenomenological applications. The low-energy theory contains also a supersymmetric mass term $\mu$ for the two Higgs doublets, which is of the order of the supersymmetry-breaking scale.We study the effect of integrating out the heavy fields in a supersymmetric GUT which does not contain small mass parameters in the limit of exact supersymmetry. The trilinear ($A$) and bilinear ($B$) coefficients of the supersymmetry soft-breaking terms of the low-energy effective theory are related in a simple and model-independent way to those of the underlying theory. {}From these relations, we obtain the bound $|B|\ge 2$, which, together with the requirements of stability of the potential and electroweak symmetry breaking, imposes severe constraints on the space of allowed supersymmetric parameters. In models based on supergravity with a flat K\"ahler metric, we obtain $B=2$, instead of the relation $B=A-1$ usually used in phenomenological applications. The low-energy theory contains also a supersymmetric mass term $\mu$ for the two Higgs doublets, which is of the order of the supersymmetry-breaking scale.We study the effect of integrating out the heavy fields in a supersymmetric GUT which does not contain small mass parameters in the limit of exact supersymmetry. The trilinear ( A ) and bilinear ( B ) coefficients of the supersymmetry soft-breaking terms of the low-energy effective theory are related in a simple and model-independent way to those of the underlying theory. From these relations, we obtain the bound | B | ⩾ 2, which, together with the requirements of stability of the potential and electroweak symmetry breaking, imposes severe constraints on the space of allowed supersymmetric parameters. In models based on supergravity with a flat Kähler metric, we obtain B = 2, instead of the relation B = A − 1 usually used in phenomenological applications. The low-energy theory contains also a supersymmetric mass term μ for the two Higgs doublets, which is of the order of the supersymmetry-breaking scale.hep-ph/9307226CERN-TH-6940-93CERN-TH-6940-93oai:cds.cern.ch:2512681993 |
spellingShingle | Particle Physics - Theory Particle Physics - Phenomenology Giudice, G.F. Roulet, E. Conditions on supersymmetry soft-breaking terms from GUTs |
title | Conditions on supersymmetry soft-breaking terms from GUTs |
title_full | Conditions on supersymmetry soft-breaking terms from GUTs |
title_fullStr | Conditions on supersymmetry soft-breaking terms from GUTs |
title_full_unstemmed | Conditions on supersymmetry soft-breaking terms from GUTs |
title_short | Conditions on supersymmetry soft-breaking terms from GUTs |
title_sort | conditions on supersymmetry soft-breaking terms from guts |
topic | Particle Physics - Theory Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1016/0370-2693(93)90165-E http://cds.cern.ch/record/251268 |
work_keys_str_mv | AT giudicegf conditionsonsupersymmetrysoftbreakingtermsfromguts AT roulete conditionsonsupersymmetrysoftbreakingtermsfromguts |