Search for top and bottom squarks from gluino pair production in final states with missing transverse energy and at least three b-jets with the ATLAS detector

TL;DR

This paper reports a search for top and bottom squarks produced via gluino pair production in proton-proton collisions at 7 TeV, using ATLAS data, setting exclusion limits up to 1 TeV for gluino masses.

Contribution

It presents the first ATLAS search for squarks in final states with multiple b-jets and missing energy at 7 TeV, establishing new exclusion limits.

Findings

Gluino masses up to 1 TeV are excluded in certain models.

No significant excess over the Standard Model background was observed.

The analysis demonstrates the ATLAS detector's capability in supersymmetry searches.

Abstract

This letter reports the results of a search for top and bottom squarks from gluino pair production in 4.7 fb^-1 of pp collisions at sqrt(s) = 7 TeV using the ATLAS detector at the LHC. The search is performed in events with large missing transverse momentum and at least three jets identified as originating from a b-quark. Exclusion limits are presented for a variety of gluino-mediated models with gluino masses up to 1 TeV excluded.