TY - JOUR
T1 - Search for Production of Resonant States in the Photon-Jet Mass Distribution Using pp Collisions at vs=7¿¿TeV Collected by the ATLAS Detector
AU - Aad, G.
AU - Dam, Mogens
AU - Hansen, Jørgen Beck
AU - Hansen, Peter Henrik
AU - Hansen, John Renner
AU - Hansen, Jørn Dines
AU - Heisterkamp, Simon Johann Franz
AU - Boelaert, Nele Maria Philomena
AU - Jørgensen, Morten Dam
AU - Klinkby, Esben Bryndt
AU - Mehlhase, Sascha
AU - Petersen, Troels Christian
AU - Nilsson, Björn Stefan
AU - Xella, Stefania
AU - Løvschall-Jensen, Ask Emil
PY - 2012/5/22
Y1 - 2012/5/22
N2 - This Letter describes a model-independent search for the production of new resonant states in photon+jet events in 2.11fb-1 of proton-proton collisions at √s=7TeV. We compare the photon+jet 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 (q*) model, excluding 2 TeV Gaussian resonances with cross section times branching fraction times acceptance times efficiency near 5 fb and excluding q* masses below 2.46 TeV, respectively.
AB - This Letter describes a model-independent search for the production of new resonant states in photon+jet events in 2.11fb-1 of proton-proton collisions at √s=7TeV. We compare the photon+jet 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 (q*) model, excluding 2 TeV Gaussian resonances with cross section times branching fraction times acceptance times efficiency near 5 fb and excluding q* masses below 2.46 TeV, respectively.
U2 - 10.1103/PhysRevLett.108.211802
DO - 10.1103/PhysRevLett.108.211802
M3 - Journal article
SN - 0031-9007
VL - 108
SP - 211802
JO - Physical Review Letters
JF - Physical Review Letters
IS - 21
ER -