Multi-channel search for squarks and gluinos in √s=7 TeV pp collisions with the ATLAS detector at the LHC

A search for supersymmetric particles in final
states with zero, one, and two leptons, with and without
jets identified as originating from
b-quarks, in 4.7 fb−1 of √s=7TeV pp
collisions produced by the Large Hadron
Collider and recorded by the ATLAS detector is presented.
The search uses a set of variables carrying information on
the event kinematics transverse and parallel to the beam line
that are sensitive to several topologies expected in super-
symmetry. Mutually exclusive final states are defined, al-
lowing a combination of all channels to increase the search
sensitivity. No deviation from the Standard Model expecta-
tion is observed. Upper limits at 95 % confidence level on
visible cross-sections for the production of new particles are
extracted. Results are interpreted in the context of the con-
strained minimal supersymmetric extension to the Standard
Model and in supersymmetry-inspired models with diverse,
high-multiplicity final states.