“School of Particles And Accelerator”
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| Paper IPM / Particles And Accelerator / 11711 |
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A search for supersymmetry with R-parity conservation in proton-proton collisions
at a centre-of-mass energy of 7 TeV is presented. The data correspond to an integrated
luminosity of 35 pb
1
collected by the CMS experiment at the LHC. The search is
performed in events with jets and significant missing transverse energy, characteristic of the decays of heavy, pair-produced squarks and gluinos. The primary
background, from standard model multijet production, is reduced by several orders
of magnitude to a negligible level by the application of a set of robust kinematic
requirements. With this selection, the data are consistent with the standard model
backgrounds, namely t�t, W + jet and Z + jet production, which are estimated from
data control samples. Limits are set on the parameters of the constrained minimal
supersymmetric extension of the standard model. These limits extend those set
previously by experiments at the Tevatron and LEP colliders.
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