Search for production of resonant states in the photon-jet mass distribution using pp collisions at sqrt(s) = 7 TeV collected by the ATLAS detector
2011 (English)In: Physical Review Letters, ISSN 0031-9007Article in journal (Other academic) Submitted
This Letter describes a model-independent search for production of new resonant states in photon-jet events in 2.11 fb^-1 of proton-proton collisions at sqrt(s) = 7 TeV. We compare the photon-jet mass distribution to a data-driven background estimate and find consistency with the background hypothesis. Given the lack of evidence for a signal, we set 95% CL limits on generic Gaussian-shape signals and on a benchmark excited-quark (q*) model, excluding 2 TeV Gaussian resonances with cross section times branching ratio times acceptance times efficiency near 5 fb and excluding q* masses below 2.46 TeV, respectively.
Place, publisher, year, edition, pages
IdentifiersURN: urn:nbn:se:kth:diva-84573OAI: oai:DiVA.org:kth-84573DiVA: diva2:499390
QS 20122012-02-132012-02-132012-04-11Bibliographically approved