Search for dark matter candidates and large extra dimensions in events with a jet and missing transverse momentum with the ATLAS detector

TL;DR

This paper reports a search for dark matter and large extra dimensions using ATLAS data, finding no evidence of new phenomena but setting limits on theoretical models based on proton-proton collision events with jets and missing energy.

Contribution

It presents the first ATLAS search for dark matter and extra dimensions in jet plus missing energy events at 7 TeV, establishing new limits on these models.

Findings

No excess events observed beyond Standard Model predictions.

Limits set on large extra dimensions parameters.

Constraints placed on dark matter particle production.

Abstract

A search for new phenomena in events with a high-energy jet and large missing transverse momentum is performed using data from proton-proton collisions at sqrt(s)=7 TeV with the ATLAS experiment at the Large Hadron Collider. Four kinematic regions are explored using a dataset corresponding to an integrated luminosity of 4.7 inverse femtobarn. No excess of events beyond expectations from Standard Model processes is observed, and limits are set on large extra dimensions and the pair production of dark matter particles.