Search for supersymmetry in pp collisions at sqrt(s) = 7 TeV in final states with missing transverse momentum and b-jets with the ATLAS detector

TL;DR

This paper reports a search for supersymmetry in proton-proton collisions at 7 TeV using the ATLAS detector, focusing on events with missing transverse momentum and b-jets, setting limits on gluino masses.

Contribution

It presents the first search for supersymmetry with b-jets and missing transverse momentum at 7 TeV, excluding gluino masses up to 900 GeV in specific models.

Findings

No significant excess over Standard Model predictions.

Gluino masses up to 900 GeV are excluded depending on the model.

Results constrain supersymmetry parameter space.

Abstract

The results of a search for supersymmetry in events with large missing transverse momentum and heavy flavour jets using an integrated luminosity corresponding to 2.05 fb^-1 of pp collisions at sqrt(s) = 7 TeV recorded with the ATLAS detector at the Large Hadron Collider are reported. No significant excess is observed with respect to the prediction for Standard Model processes. Results are interpreted in a variety of R-parity conserving models in which scalar bottoms and tops are the only scalar quarks to appear in the gluino decay cascade, and in an SO(10) model framework. Gluino masses up to 600-900 GeV are excluded, depending on the model considered.