Search for Narrow t-tbar Resonances in ppbar Collisions at \root{s} = 1.8 TeV

Details Search for Narrow t-tbar Resonances in ppbar Collisions at \root{s} = 1.8 TeV Search for Narrow t-tbar Resonances in ppbar Collisions at \root{s} = 1.8 TeV

2003-07-29

arxiv.org/abs/hep-ex/0307079v1

Phys.Rev.Lett.92:221801,2004

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 2 figures, 2 tables

Scientific paper

10.1103/PhysRevLett.92.221801

A search for narrow resonances that decay into t-tbar pairs has been performed using 130 pb^{-1} of data in the lepton+jets channel collected in p-pbar collisions at \sqrt{s} = 1.8 TeV. There is no significant deviation observed from the standard model, and upper limits at the 95 % confidence level on the product of the production cross section and branching fraction to t-tbar are presented for narrow resonances as a function of the resonance mass M_X. These limits are used to exclude the existence of a leptophobic topcolor particle with mass M_X < 560 GeV/c^2 and width \Gamma_X = 0.012 M_X.

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