Search for Mono-Jet Final States from ADD Extra Dimensions

The missing transverse energy + single-jet signature has been investigated as a probe for the discovery of large extra dimensions, in the framework of the ADD model, with the CMS detector. Signal and background samples have been simulated and studied in detail. Techniques to estimate the background contributions via data-driven methods are discussed. The discovery reach is studied for initial luminosities at the LHC collider at $\sqrt{s}=14$\,\TeV, taking into account systematic uncertainties. It is shown that a significant improvement of the existing limits can be obtained from early data.