Search for ADD Extra-dimensions in Dielectrons

We report the results of a search for large extra dimensions in events with two isolated electrons using $5.0$ fb$^{-1}$ of data collected with the CMS detector at the LHC. Standard Model predictions were found to be in good agreement with the data and no evidence for physics beyond the Standard Model was observed. The data were used to set limits on large extra dimensions parameters. Depending on the number of extra dimensions and the validity range of the theory, limits of up to 3.72~TeV at 95$\%$ C.L. were set on the model parameter $M_{S}$.