Search for New Physics with a Mono-Jet and Missing Transverse Energy in pp Collisions at sqrt(s) = 7 TeV

TL;DR

This paper searches for signs of new physics like extra dimensions or unparticles by analyzing events with missing transverse energy and a jet in 7 TeV proton-proton collisions, finding no significant deviations from the standard model.

Contribution

First search for new physics signatures with mono-jet and missing energy at 7 TeV, setting new limits on models like large extra dimensions and unparticles.

Findings

No excess events observed over standard model predictions.

Established more stringent limits on parameters of new physics models.

Validated the standard model's predictions at 7 TeV energy.

Abstract

A study of events with missing transverse energy and an energetic jet is performed using pp collision data at a centre-of-mass energy of 7 TeV. The data were collected by the CMS detector at the LHC, and correspond to an integrated luminosity of 36 inverse picobarns. An excess of these events over standard model contributions is a signature of new physics such as large extra dimensions and unparticles. The number of observed events is in good agreement with the prediction of the standard model, and significant extension of the current limits on parameters of new physics benchmark models is achieved.