Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in √{ s} = 7 TeV proton-proton collisions
Abstract
A search for squarks and gluinos in events containing jets, missing transverse momentum and no electrons or muons is presented. The data were recorded in 2011 by the ATLAS experiment in √{ s} = 7 TeV proton-proton collisions at the Large Hadron Collider. No excess above the Standard Model background expectation is observed in 1.04 fb-1 of data. Gluino and squark masses below 700 GeV and 875 GeV respectively 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 limit increases to 1075 GeV for squarks and gluinos of equal mass. In MSUGRA/CMSSM models with tan β = 10, A0 = 0 and μ > 0, squarks and gluinos of equal mass are excluded for masses below 950 GeV. These limits extend the region of supersymmetric parameter space excluded by previous measurements.
- Publication:
-
Physics Letters B
- Pub Date:
- March 2012
- DOI:
- 10.1016/j.physletb.2012.02.051
- arXiv:
- arXiv:1109.6572
- Bibcode:
- 2012PhLB..710...67A
- Keywords:
-
- High Energy Physics - Experiment
- E-Print:
- 9 pages plus author list (20 pages total), 2 figures, 3 tables, matches published version in Physics Letters B