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Non-Degenerate Squarks from Flavored Gauge Mediation

We study the squark spectra of Flavored Gauge Mediation Models, in which messenger-matter superpotential couplings generate new, generation-dependent contributions to the squark masses. The new couplings are controlled by the same flavor symmetry that explains the fermion masses, leading to excellen...

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Detalles Bibliográficos
Autores principales: Galon, Iftah, Perez, Gilad, Shadmi, Yael
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:https://dx.doi.org/10.1007/JHEP09(2013)117
http://cds.cern.ch/record/1558817
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author Galon, Iftah
Perez, Gilad
Shadmi, Yael
author_facet Galon, Iftah
Perez, Gilad
Shadmi, Yael
author_sort Galon, Iftah
collection CERN
description We study the squark spectra of Flavored Gauge Mediation Models, in which messenger-matter superpotential couplings generate new, generation-dependent contributions to the squark masses. The new couplings are controlled by the same flavor symmetry that explains the fermion masses, leading to excellent alignment of the quark and squark mass matrices. This allows for large squark mass splittings consistent with all flavor bounds. In particular, second-generation squarks are often significantly lighter than the first-generation squarks. As squark production at the LHC is dominated by the up- and down-squarks and the efficiencies for squark searches increase with their masses, the charm and/or strange squark masses can be well below the current LHC bounds. At the same time, even with a single set of messengers, the models can generate large stop mixings which result in large loop contributions to the Higgs mass.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
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spelling cern-15588172021-05-03T20:09:56Zdoi:10.1007/JHEP09(2013)117http://cds.cern.ch/record/1558817engGalon, IftahPerez, GiladShadmi, YaelNon-Degenerate Squarks from Flavored Gauge MediationParticle Physics - PhenomenologyWe study the squark spectra of Flavored Gauge Mediation Models, in which messenger-matter superpotential couplings generate new, generation-dependent contributions to the squark masses. The new couplings are controlled by the same flavor symmetry that explains the fermion masses, leading to excellent alignment of the quark and squark mass matrices. This allows for large squark mass splittings consistent with all flavor bounds. In particular, second-generation squarks are often significantly lighter than the first-generation squarks. As squark production at the LHC is dominated by the up- and down-squarks and the efficiencies for squark searches increase with their masses, the charm and/or strange squark masses can be well below the current LHC bounds. At the same time, even with a single set of messengers, the models can generate large stop mixings which result in large loop contributions to the Higgs mass.arXiv:1306.6631oai:cds.cern.ch:15588172013-06-27
spellingShingle Particle Physics - Phenomenology
Galon, Iftah
Perez, Gilad
Shadmi, Yael
Non-Degenerate Squarks from Flavored Gauge Mediation
title Non-Degenerate Squarks from Flavored Gauge Mediation
title_full Non-Degenerate Squarks from Flavored Gauge Mediation
title_fullStr Non-Degenerate Squarks from Flavored Gauge Mediation
title_full_unstemmed Non-Degenerate Squarks from Flavored Gauge Mediation
title_short Non-Degenerate Squarks from Flavored Gauge Mediation
title_sort non-degenerate squarks from flavored gauge mediation
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP09(2013)117
http://cds.cern.ch/record/1558817
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AT perezgilad nondegeneratesquarksfromflavoredgaugemediation
AT shadmiyael nondegeneratesquarksfromflavoredgaugemediation