Abstract
This Letter describes a model-independent search for the production of new resonant states in events in of proton-proton collisions at . We compare the mass distribution to a background model derived from data and find consistency with the background-only hypothesis. Given the lack of evidence for a signal, we set 95% credibility level limits on generic Gaussian-shaped signals and on a benchmark excited-quark () model, excluding 2 TeV Gaussian resonances with cross section times branching fraction times acceptance times efficiency near 5 fb and excluding masses below 2.46 TeV, respectively.
- Received 15 December 2011
DOI:https://doi.org/10.1103/PhysRevLett.108.211802
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© 2012 CERN, for the ATLAS Collaboration