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arXiv · hep-ex/9503002

Observation of Top Quark Production in Pbar-P Collisions

The CDF Collaboration
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Abstract

We establish the existence of the top quark using a 67 pb^-1 data sample of Pbar-P collisions at Sqrt(s) = 1.8 TeV collected with the Collider Detector at Fermilab (CDF). Employing techniques similar to those we previously published, we observe a signal consistent with t-tbar decay to WW b-bbar, but inconsistent with the background prediction by 4.8 sigma. Additional evidence for the top quark is provided by a peak in the reconstructed mass distribution. We measure the top quark mass to be 176 +/-8(stat) +/- 10(sys.) GeV/c^2, and the t-tbar production cross section to be 6.8 +3.6 -2.4 pb.

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The CDF Collaboration. 1995-03-03. Observation of Top Quark Production in Pbar-P Collisions. https://doi.org/10.1103/physrevlett.74.2626

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