Search for pair production of gluinos decaying via stop and sbottom in events withb-jets and large missing transverse momentum inppcollisions ats=13 TeVwith the ATLAS detector

2016/05/30 by ATLAS Collaboration, G. Aad, B. Abbott +98 · 3 citations
Mathematics · Physics and Astronomy · #High-Energy Particle Collisions Research #Mathematics #Nuclear physics #Pair production #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #hep-ex

paper · pdf · doi:10.1103/physrevd.94.032003

published as Phys. Rev. D 94, 032003 (2016) · 28 pages plus author list plus cover pages (46 pages total), 7 figures, 8 tables, submitted to Physical Review D, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2015-10/

arxiv created 2016/05/30 · openalex created_date 2016/06/24 · openalex publication_date 2016/08/09 · arxiv updated 2016/08/17 · openalex updated_date 2026/08/06

Abstract

A search for supersymmetry involving the pair production of gluinos decaying via third-generation squarks to the lightest neutralino (\stackrel\texttildelow\ensuremathχ₁⁰) is reported. It uses an LHC proton-proton data set at a center-of-mass energy √(s)=13 TeV with an integrated luminosity of 3.2 fb^\ensuremath-1 collected with the ATLAS detector in 2015. The signal is searched for in events containing several energetic jets, of which at least three must be identified as b jets, large missing transverse momentum, and, potentially, isolated electrons or muons. Large-radius jets with a high mass are also used to identify highly boosted top quarks. No excess is found above the predicted background. For \stackrel\texttildelow\ensuremathχ₁⁰ masses below approximately 700 GeV, gluino masses of less than 1.78 TeV and 1.76 TeV are excluded at the 95% C.L. in simplified models of the pair production of gluinos decaying via sbottom and stop, respectively. These results significantly extend the exclusion limits obtained with the √(s)=8 TeV data set.

Citations

• Next-to-next-to-leading logarithm resummation fors-channel single top quark production
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• Vector Boson Production at Hadron Colliders: A Fully Exclusive QCD Calculation at Next-to-Next-to-Leading Order
• Supergauge transformations in four dimensions
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• Is the neutrino a goldstone particle?
• Search for new physics in the multijet and missing transverse momentum final state in proton-proton collisions at √(s) = 8 TeV
• The anti-ktjet clustering algorithm
• Performance of the ATLAS Trigger System in 2010
• Search for supersymmetry at √(s)=13 s = 13 TeV in final states with jets and two same-sign leptons or three leptons with the ATLAS detector

Cited by

• Probing the BSM physics with CMB precision cosmology: an application to supersymmetry
• Search for new phenomena with multiple charged leptons in proton–proton collisions at √(s)= 13 s = 13 \text TeV TeV
• Search for top-squark pair production in final states with one lepton, jets, and missing transverse momentum using 36 fb−1 of √(s)=13 TeV pp collision data with the ATLAS detector