Model uncertainties on limits for quantum black hole production in dijet   events from ATLAS
  We study the model uncertainties on limits for quantum black hole production in dijet events from ATLAS. For models that assume a hard-disk cross section, the model uncertainty on the threshold mass limits is about 5%. If the trapped surface calculation is used for the cross section, the ATLAS mass threshold limits are below 2 TeV for all number of dimensions. Using the ATLAS data in the context of the Randall-Sundrum type-1 model gives a threshold mass lower limit of 2.84 TeV. 
Douglas M. Gingrich and Krishan Saraswat
hep-ph gr-qc hep-ex hep-th