We establish the existence of the top quark using a 67pb-1 data sample of p̅ p collisions at √s = 1.8TeV collected with the Collider Detector at Fermilab (CDF). Employing techniques similar to those we previously published, we observe a signal consistent with tt̅ decay to WWbb̅ , but inconsistent with the background prediction by 4.8σ. 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(syst)GeV/c2, and the tt̅ production cross section to be 6.8-2.4+3.6pb.
Observation of Top Quark Production in p̅ p Collisions with the Collider Detector at Fermilab
PAGLIARONE, Carmine Elvezio;
1995-01-01
Abstract
We establish the existence of the top quark using a 67pb-1 data sample of p̅ p collisions at √s = 1.8TeV collected with the Collider Detector at Fermilab (CDF). Employing techniques similar to those we previously published, we observe a signal consistent with tt̅ decay to WWbb̅ , but inconsistent with the background prediction by 4.8σ. 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(syst)GeV/c2, and the tt̅ production cross section to be 6.8-2.4+3.6pb.File in questo prodotto:
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