Radiative corrections to the decay H --> hh in the minimal supersymmetric Standard Model

We set up a suitable renormalization programme for the one-loop computation of the decay rate Gamma(H==>hh) in the Minimal Supersymmetric extension of the Standard Model. We then perform an explicit diagrammatic calculation, including the full contributions from top, bottom, stop and sbottom loop...

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Detalles Bibliográficos
Autores principales: Brignole, A., Zwirner, F.
Lenguaje:eng
Publicado: 1993
Materias:
Particle Physics - Theory
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(93)90885-L
http://cds.cern.ch/record/242653
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author Brignole, A.
Zwirner, F.
author_facet Brignole, A.
Zwirner, F.
author_sort Brignole, A.
collection CERN
description We set up a suitable renormalization programme for the one-loop computation of the decay rate Gamma(H==>hh) in the Minimal Supersymmetric extension of the Standard Model. We then perform an explicit diagrammatic calculation, including the full contributions from top, bottom, stop and sbottom loops. We find that, for tan(beta) close to 1, and m_H greater than or approximately equal to 2 m_t, the results can significantly differ from those previously obtained in the effective potential approach. However, the latter method remains a good approximation in the region of parameter space which is most relevant for H searches at large hadron colliders.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1993
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spelling cern-2426532023-03-14T19:28:31Zdoi:10.1016/0370-2693(93)90885-Lhttp://cds.cern.ch/record/242653engBrignole, A.Zwirner, F.Radiative corrections to the decay H --> hh in the minimal supersymmetric Standard ModelParticle Physics - TheoryParticle Physics - PhenomenologyWe set up a suitable renormalization programme for the one-loop computation of the decay rate Gamma(H==>hh) in the Minimal Supersymmetric extension of the Standard Model. We then perform an explicit diagrammatic calculation, including the full contributions from top, bottom, stop and sbottom loops. We find that, for tan(beta) close to 1, and m_H greater than or approximately equal to 2 m_t, the results can significantly differ from those previously obtained in the effective potential approach. However, the latter method remains a good approximation in the region of parameter space which is most relevant for H searches at large hadron colliders.We set up a suitable renormalization programme for the one-loop computation of the decay rate Gamma(H==>hh) in the Minimal Supersymmetric extension of the Standard Model. We then perform an explicit diagrammatic calculation, including the full contributions from top, bottom, stop and sbottom loops. We find that, for tan(beta) close to 1, and m_H greater than or approximately equal to 2 m_t, the results can significantly differ from those previously obtained in the effective potential approach. However, the latter method remains a good approximation in the region of parameter space which is most relevant for H searches at large hadron colliders.We set up a suitable renormalization programme for the one-loop computation of the decay rate Gamma(H==>hh) in the Minimal Supersymmetric extension of the Standard Model. We then perform an explicit diagrammatic calculation, including the full contributions from top, bottom, stop and sbottom loops. We find that, for tan(beta) close to 1, and m_H greater than or approximately equal to 2 m_t, the results can significantly differ from those previously obtained in the effective potential approach. However, the latter method remains a good approximation in the region of parameter space which is most relevant for H searches at large hadron colliders.We set up a suitable renormalization programme for the one-loop computation of the decay rate Γ ( H → hh ) in the minimal supersymmetric extension of the standard model. We then perform an explicit diagrammatic calculation, including the full contributions from top, bottom, stop and sbottom loops. We find that, for tan β close to 1 and m H ⪆ 2m t , the results can significantly differ from those previously obtained in the effective potential approach. However, the latter method remains a good approximation in the region of parameter space which is most relevant for H searches at large hadron colliders.hep-ph/9210266CERN-TH-6603-92CERN-TH-6603-92oai:cds.cern.ch:2426531993
spellingShingle Particle Physics - Theory
Particle Physics - Phenomenology
Brignole, A.
Zwirner, F.
Radiative corrections to the decay H --> hh in the minimal supersymmetric Standard Model
title Radiative corrections to the decay H --> hh in the minimal supersymmetric Standard Model
title_full Radiative corrections to the decay H --> hh in the minimal supersymmetric Standard Model
title_fullStr Radiative corrections to the decay H --> hh in the minimal supersymmetric Standard Model
title_full_unstemmed Radiative corrections to the decay H --> hh in the minimal supersymmetric Standard Model
title_short Radiative corrections to the decay H --> hh in the minimal supersymmetric Standard Model
title_sort radiative corrections to the decay h --> hh in the minimal supersymmetric standard model
topic Particle Physics - Theory
Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0370-2693(93)90885-L
http://cds.cern.ch/record/242653
work_keys_str_mv AT brignolea radiativecorrectionstothedecayhhhintheminimalsupersymmetricstandardmodel
AT zwirnerf radiativecorrectionstothedecayhhhintheminimalsupersymmetricstandardmodel

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