A search for production of mini black hole states at the LHC, the focus of research efforts of Prof. Dallapiccola and graduate student German Colon, has been submitted to Physics Letters B: arxiv.org/abs/1204.4646. The data were scrutinized for telltale signs of black holes decaying via Hawking radiation. No evidence of a signal was present, and thus lower limits were placed on the fundamental energy scale of gravity, MD, and the energy threshold above which classical black states could be produced, Mthresh. Based on 1 fb-1 of integrated luminosity collected in proton-proton collisions with the ATLAS detector, values of MD < 1.5 TeV and Mthresh < 4.5 TeV have been ruled out at 95% confidence level. These new results place stringent constraints on models proposing large, compactified extra dimensions.
These results, along with other, related searches for signatures of extra dimensions, were presented by Prof. Dallapiccola at a Fermilab JETP seminar, 11 May 2012, and can be viewed here.