Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2011-02-25
Phys. Lett. B 701 (2011) 186-203
Physics
High Energy Physics
High Energy Physics - Experiment
5 pages plus author list (17 pages total), 3 figures, 2 tables, submitted to Physics Letters B
Scientific paper
10.1016/j.physletb.2011.05.061
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 sqrt(s) = 7 TeV proton-proton collisions at the Large Hadron Collider. No excess above the Standard Model background expectation was observed in 35 inverse picobarns 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.
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