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Sgoldstino events in top decays at LHC

We study top-quark decays in models with light sgoldstinos. The off-diagonal entries in the squark mass matrices can lead to FCNC top two-body decays into sgoldstinos and u(c) quarks. We compute the rates for these decays and discuss the corresponding signatures that could manifest the presence of s...

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Detalles Bibliográficos
Autores principales: Gorbunov, D S, Ilyin, V A, Melé, Barbara
Lenguaje:eng
Publicado: 2001
Materias:
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(01)00157-5
http://cds.cern.ch/record/480514
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author Gorbunov, D S
Ilyin, V A
Melé, Barbara
author_facet Gorbunov, D S
Ilyin, V A
Melé, Barbara
author_sort Gorbunov, D S
collection CERN
description We study top-quark decays in models with light sgoldstinos. The off-diagonal entries in the squark mass matrices can lead to FCNC top two-body decays into sgoldstinos and u(c) quarks. We compute the rates for these decays and discuss the corresponding signatures that could manifest the presence of sgoldstinos in top decays at LHC. We expect that a supersymmetry breaking scale $\sqrt{F}$ up to a scale of order 10 TeV could be probed through this process, for a maximal squark mixing with the third generation. Justified by our preliminary analysis, a thorough study of the corresponding signal versus background and systematics in the LHC environment would be most welcome, in order to accurately assess the potential of this promising process in determining $\sqrt{F}$.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
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spelling cern-4805142019-09-30T06:29:59Zdoi:10.1016/S0370-2693(01)00157-5http://cds.cern.ch/record/480514engGorbunov, D SIlyin, V AMelé, BarbaraSgoldstino events in top decays at LHCParticle Physics - PhenomenologyWe study top-quark decays in models with light sgoldstinos. The off-diagonal entries in the squark mass matrices can lead to FCNC top two-body decays into sgoldstinos and u(c) quarks. We compute the rates for these decays and discuss the corresponding signatures that could manifest the presence of sgoldstinos in top decays at LHC. We expect that a supersymmetry breaking scale $\sqrt{F}$ up to a scale of order 10 TeV could be probed through this process, for a maximal squark mixing with the third generation. Justified by our preliminary analysis, a thorough study of the corresponding signal versus background and systematics in the LHC environment would be most welcome, in order to accurately assess the potential of this promising process in determining $\sqrt{F}$.hep-ph/0012150oai:cds.cern.ch:4805142001
spellingShingle Particle Physics - Phenomenology
Gorbunov, D S
Ilyin, V A
Melé, Barbara
Sgoldstino events in top decays at LHC
title Sgoldstino events in top decays at LHC
title_full Sgoldstino events in top decays at LHC
title_fullStr Sgoldstino events in top decays at LHC
title_full_unstemmed Sgoldstino events in top decays at LHC
title_short Sgoldstino events in top decays at LHC
title_sort sgoldstino events in top decays at lhc
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0370-2693(01)00157-5
http://cds.cern.ch/record/480514
work_keys_str_mv AT gorbunovds sgoldstinoeventsintopdecaysatlhc
AT ilyinva sgoldstinoeventsintopdecaysatlhc
AT melebarbara sgoldstinoeventsintopdecaysatlhc