Search for New Phenomena in Monojet Final States with the ATLAS detector

A search for new phenomena in monojet final states with large missing transverse momentum was performed on 10.5 fb−1 of √s = 8 TeV data collected in 2012 with the ATLAS detector at the LHC. Good agreement is observed between the number of events in data and the Standard Model predictions. The results are translated into limits on pair production of weakly interacting dark matter candidates, as well as on the production of light grativinos, leading to the best lower bound to date on the gravitino mass. Limits on models with large extra spatial dimensions are also presented. Detailed Documentation of results can be found in ATLAS-CONF-2012-147.