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Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in root s=7 TeV proton-proton collisions
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
University of Chicago.ORCID iD: 0000-0002-8913-0981
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Number of Authors: 3047
2011 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 701, no 2, 186-203 p.Article in journal (Refereed) Published
Abstract [en]

A search for squarks and gluinos in final states containing jets, missing transverse momentum and no electrons or muons is presented. The data were recorded by the ATLAS experiment in root s = 7 TeV proton-proton collisions at the Large Hadron Collider. No excess above the Standard Model background expectation was observed in 35 pb(-1) of analysed data. Gluino masses below 500 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. The exclusion increases to 870 GeV for equal mass squarks and gluinos. In MSUGRA/CMSSM models with tan beta = 3, A(0) = 0 and mu > 0, squarks and gluinos of equal mass are excluded below 775 GeV. These are the most stringent limits to date.

Place, publisher, year, edition, pages
2011. Vol. 701, no 2, 186-203 p.
Keyword [en]
Supersymmetry, Squark, Gluino, Search, LHC, ATLAS
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-41476DOI: 10.1016/j.physletb.2011.05.061ISI: 000292993900005ScopusID: 2-s2.0-79960292068OAI: diva2:443957
QC 20110927. Author count: 3047Available from: 2011-09-27 Created: 2011-09-27 Last updated: 2012-02-14Bibliographically approved

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Grahn, Karl-JohanLund-Jensen, BengtStrandberg, JonasLafaye, Remi
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