Search for a Narrow ttbar Resonance in ppbar Collisions at sqrt{s}=1.96 TeV

Details Search for a Narrow ttbar Resonance in ppbar Collisions at sqrt{s}=1.96 TeV Search for a Narrow ttbar Resonance in ppbar Collisions at sqrt{s}=1.96 TeV

2011-11-04

arxiv.org/abs/1111.1271v1

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 3 figures, submitted to Physical Review Letters

Scientific paper

We report a search for a narrow ttbar resonance that decays into a lepton+jets final state based on an integrated luminosity of 5.3/fb of proton-antiproton collisions at sqrt{s}=1.96 TeV collected by the D0 Collaboration at the Fermilab Tevatron Collider. We set upper limits on the production cross section of such a resonance multiplied by its branching fraction to ttbar which we compare to predictions for a leptophobic topcolor Z' boson. We exclude such a resonance at the 95% confidence level for masses below 835 GeV.

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