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Interpreting the First CMS and ATLAS SUSY Results

The CMS and the ATLAS Collaborations have recently reported on the search for supersymmetry with 35 pb$^{-1}$ of data and have put independent limits on the parameter space of the supergravity unified model with universal boundary conditions at the GUT scale for soft breaking, i.e., the mSUGRA model...

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Detalles Bibliográficos
Autores principales: Akula, Sujeet, Chen, Ning, Feldman, Daniel, Liu, Mengxi, Liu, Zuowei, Nath, Pran, Peim, Gregory
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:http://cds.cern.ch/record/1334403
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author Akula, Sujeet
Chen, Ning
Feldman, Daniel
Liu, Mengxi
Liu, Zuowei
Nath, Pran
Peim, Gregory
author_facet Akula, Sujeet
Chen, Ning
Feldman, Daniel
Liu, Mengxi
Liu, Zuowei
Nath, Pran
Peim, Gregory
author_sort Akula, Sujeet
collection CERN
description The CMS and the ATLAS Collaborations have recently reported on the search for supersymmetry with 35 pb$^{-1}$ of data and have put independent limits on the parameter space of the supergravity unified model with universal boundary conditions at the GUT scale for soft breaking, i.e., the mSUGRA model. We extend this study by examining other regions of the mSUGRA parameter space in $A_0$ and $\tan\beta$. Further, we contrast the reach of CMS and ATLAS with 35 pb$^{-1}$ of data with the indirect constraints, i.e., the constraints from the Higgs boson mass limits, from flavor physics and from the dark matter limits from WMAP. Specifically it is found that a significant part of the parameter space excluded by CMS and ATLAS is essentially already excluded by the indirect constraints and the fertile region of parameter space has yet to be explored. We also emphasize that gluino masses as low as 400 GeV but for squark masses much larger than the gluino mass remain unconstrained and further that much of the hyperbolic branch of radiative electroweak symmetry breaking, with low values of the Higgs mixing parameter $\mu$, is essentially untouched by the recent LHC analysis.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
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spelling cern-13344032019-09-30T06:29:59Zhttp://cds.cern.ch/record/1334403engAkula, SujeetChen, NingFeldman, DanielLiu, MengxiLiu, ZuoweiNath, PranPeim, GregoryInterpreting the First CMS and ATLAS SUSY ResultsParticle Physics - PhenomenologyThe CMS and the ATLAS Collaborations have recently reported on the search for supersymmetry with 35 pb$^{-1}$ of data and have put independent limits on the parameter space of the supergravity unified model with universal boundary conditions at the GUT scale for soft breaking, i.e., the mSUGRA model. We extend this study by examining other regions of the mSUGRA parameter space in $A_0$ and $\tan\beta$. Further, we contrast the reach of CMS and ATLAS with 35 pb$^{-1}$ of data with the indirect constraints, i.e., the constraints from the Higgs boson mass limits, from flavor physics and from the dark matter limits from WMAP. Specifically it is found that a significant part of the parameter space excluded by CMS and ATLAS is essentially already excluded by the indirect constraints and the fertile region of parameter space has yet to be explored. We also emphasize that gluino masses as low as 400 GeV but for squark masses much larger than the gluino mass remain unconstrained and further that much of the hyperbolic branch of radiative electroweak symmetry breaking, with low values of the Higgs mixing parameter $\mu$, is essentially untouched by the recent LHC analysis.arXiv:1103.1197oai:cds.cern.ch:13344032011-03-08
spellingShingle Particle Physics - Phenomenology
Akula, Sujeet
Chen, Ning
Feldman, Daniel
Liu, Mengxi
Liu, Zuowei
Nath, Pran
Peim, Gregory
Interpreting the First CMS and ATLAS SUSY Results
title Interpreting the First CMS and ATLAS SUSY Results
title_full Interpreting the First CMS and ATLAS SUSY Results
title_fullStr Interpreting the First CMS and ATLAS SUSY Results
title_full_unstemmed Interpreting the First CMS and ATLAS SUSY Results
title_short Interpreting the First CMS and ATLAS SUSY Results
title_sort interpreting the first cms and atlas susy results
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/1334403
work_keys_str_mv AT akulasujeet interpretingthefirstcmsandatlassusyresults
AT chenning interpretingthefirstcmsandatlassusyresults
AT feldmandaniel interpretingthefirstcmsandatlassusyresults
AT liumengxi interpretingthefirstcmsandatlassusyresults
AT liuzuowei interpretingthefirstcmsandatlassusyresults
AT nathpran interpretingthefirstcmsandatlassusyresults
AT peimgregory interpretingthefirstcmsandatlassusyresults