Search for squarks and gluinos with the ATLAS detector in final states with jets and missing transverse momentum using4.7 fb−1ofs=7 TeVproton-proton collision data

2012/08/31 by G. Aad, ATLAS Collaboration, T. Abajyan +97 · 8 citations
Physics and Astronomy · #Atlas (anatomy) #Biology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Gluino #Massless particle #Minimal Supersymmetric Standard Model #Muon #Neutralino #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Standard Model (mathematical formulation) #Supergravity #Supersymmetry #hep-ex

paper · pdf · doi:10.1103/physrevd.87.012008

published as Phys. Rev. D 87 (2013) 012008 · 23 pages plus author list (36 pages total), 15 figures, 5 tables, submitted to Physical Review D

arxiv created 2012/12/27 · openalex publication_date 2013/01/22 · arxiv updated 2015/03/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

A search for squarks and gluinos in final states containing jets, missing transverse momentum and no high-p_T electrons or muons is presented. The data represent the complete sample recorded in 2011 by the ATLAS experiment in 7 TeV proton-proton collisions at the Large Hadron Collider, with a total integrated luminosity of 4.7 fb^\ensuremath-1. No excess above the Standard Model background expectation is observed. Gluino masses below 860 GeV and squark masses below 1320 GeV are excluded at the 95% confidence level in simplified models containing only squarks of the first two generations, a gluino octet and a massless neutralino, for squark or gluino masses below 2 TeV, respectively. Squarks and gluinos with equal masses below 1410 GeV are excluded. In minimal supergravity/constrained minimal supersymmetric Standard Model models with tan\ensuremathβ=10, A₀=0 and \ensuremathμ>0, squarks and gluinos of equal mass are excluded for masses below 1360 GeV. Constraints are also placed on the parameter space of supersymmetric models with compressed spectra. These limits considerably extend the region of supersymmetric parameter space excluded by previous measurements with the ATLAS detector.

Citations

• The PDF4LHC Working Group Interim Recommendations
• Supergauge transformations in four dimensions
• Event generation with SHERPA 1.1
• Presentation of search results: theCLstechnique
• Is the neutrino a goldstone particle?
• The anti-ktjet clustering algorithm
• HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes)
• ALPGEN, a generator for hard multiparton processes in hadronic collisions
• Performance of the ATLAS Trigger System in 2010
• Dispelling the N3 myth for the kt jet-finder
• Multiparton interactions in photoproduction at HERA

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• Understanding the muon anomalous magnetic moment in light of a flavor symmetry-based Minimal Supersymmetric Standard Model
• Search for squarks and gluinos in final states with jets and missing transverse momentum using 36 fb−1 of s=13 TeV pp collision data with the ATLAS detector
• End of the CMSSM coannihilation strip is nigh
• Model-independent framework for searches of top partners
• h0→cc¯as a test case for quark flavor violation in the MSSM