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Extended Gauge Mediation in the NMSSM with Displaced LHC Signals

We analyze models of extended gauge Mediation in the context of the NMSSM, concentrating on supersymmetric spectra with light gluinos, low fine-tuning and decays of the lightest neutralino leading to displaced vertices. While the minimal scenario has rather heavy gluinos as a result of restrictions...

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Autores principales: Badziak, Marcin, Desai, Nishita, Hugonie, Cyril, Ziegler, Robert
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-019-6590-1
http://cds.cern.ch/record/2644954
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author Badziak, Marcin
Desai, Nishita
Hugonie, Cyril
Ziegler, Robert
author_facet Badziak, Marcin
Desai, Nishita
Hugonie, Cyril
Ziegler, Robert
author_sort Badziak, Marcin
collection CERN
description We analyze models of extended gauge Mediation in the context of the NMSSM, concentrating on supersymmetric spectra with light gluinos, low fine-tuning and decays of the lightest neutralino leading to displaced vertices. While the minimal scenario has rather heavy gluinos as a result of restrictions from the Higgs sector, we propose two new models in which the gluino can be as light as allowed by direct searches at the LHC, with a mass of about $1.7 \, \mathrm{TeV}$ and $2.0 \, \mathrm{TeV}$ , respectively. Both models have a tuning of a few permille, and lead to an interesting phenomenology due to a light singlet sector. A singlet state at around 98 GeV can account for the LEP excess, while the singlino has a mass of the order of 100 GeV and decays to b-jets and the gravitino, with decay lengths of a few cm.
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institution Organización Europea para la Investigación Nuclear
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publishDate 2018
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spelling cern-26449542022-09-13T02:14:52Zdoi:10.1140/epjc/s10052-019-6590-1http://cds.cern.ch/record/2644954engBadziak, MarcinDesai, NishitaHugonie, CyrilZiegler, RobertExtended Gauge Mediation in the NMSSM with Displaced LHC Signalshep-phParticle Physics - PhenomenologyWe analyze models of extended gauge Mediation in the context of the NMSSM, concentrating on supersymmetric spectra with light gluinos, low fine-tuning and decays of the lightest neutralino leading to displaced vertices. While the minimal scenario has rather heavy gluinos as a result of restrictions from the Higgs sector, we propose two new models in which the gluino can be as light as allowed by direct searches at the LHC, with a mass of about $1.7 \, \mathrm{TeV}$ and $2.0 \, \mathrm{TeV}$ , respectively. Both models have a tuning of a few permille, and lead to an interesting phenomenology due to a light singlet sector. A singlet state at around 98 GeV can account for the LEP excess, while the singlino has a mass of the order of 100 GeV and decays to b-jets and the gravitino, with decay lengths of a few cm.We analyze models of extended Gauge Mediation in the context of the NMSSM, concentrating on supersymmetric spectra with light gluinos, low fine-tuning and decays of the lightest neutralino leading to displaced vertices. While the minimal scenario has rather heavy gluinos as a result of restrictions from the Higgs sector, we propose two new models in which the gluino can be as light as allowed by direct searches at the LHC, with a mass of about 1.7 TeV and 2.0 TeV, respectively. Both models have a tuning of a few permille, and lead to an interesting phenomenology due to a light singlet sector. A singlet state at around 98 GeV can account for the LEP excess, while the singlino has a mass of the order of 100 GeV and decays to b-jets and the gravitino, with decay lengths of a few cm.arXiv:1810.05618CERN-TH-2018-221oai:cds.cern.ch:26449542018-10-12
spellingShingle hep-ph
Particle Physics - Phenomenology
Badziak, Marcin
Desai, Nishita
Hugonie, Cyril
Ziegler, Robert
Extended Gauge Mediation in the NMSSM with Displaced LHC Signals
title Extended Gauge Mediation in the NMSSM with Displaced LHC Signals
title_full Extended Gauge Mediation in the NMSSM with Displaced LHC Signals
title_fullStr Extended Gauge Mediation in the NMSSM with Displaced LHC Signals
title_full_unstemmed Extended Gauge Mediation in the NMSSM with Displaced LHC Signals
title_short Extended Gauge Mediation in the NMSSM with Displaced LHC Signals
title_sort extended gauge mediation in the nmssm with displaced lhc signals
topic hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1140/epjc/s10052-019-6590-1
http://cds.cern.ch/record/2644954
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AT hugoniecyril extendedgaugemediationinthenmssmwithdisplacedlhcsignals
AT zieglerrobert extendedgaugemediationinthenmssmwithdisplacedlhcsignals