Discovery potential and measurement of a dilepton mass edge in SUSY events at sqrt s = 10 TeV

Within the minimal supergravity model (mSUGRA), the observability of the decay of the next-to-lightest neutralino into leptons has been studied using the full simulation of the CMS detector. The final state signature consists of two opposite sign leptons, several hard jets and missing transverse energy. Using three different minimal supergravity benchmark points the possible discovery of a mSUGRA signal is studied. The expected precision of the measurement of the dileptonic mass edge is reported for 200~pb$^{-1}$ and 1~fb$^{-1}$ of data, including systematic and statistical uncertainties and comparing different decay signatures.