Interpreting the first CMS and ATLAS SUSY results

Sujeet Akula, Hai Ning Chen, Daniel Feldman, Mengxi Liu, Zuowei Liu, Pran Nath, Gregory Peim

Research output: Contribution to journalArticleResearchpeer-review

36 Citations (Scopus)

Abstract

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 A0 and tan. 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 is essentially untouched by the recent LHC analysis.

Original languageEnglish
Pages (from-to)377-382
Number of pages6
JournalPhysics Letters B
Volume699
Issue number5
DOIs
Publication statusPublished - 23 May 2011
Externally publishedYes

Keywords

  • ATLAS
  • CMS
  • LHC
  • SUGRA GUT

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