corner
corner

Phys. Rev. Lett. 74, 2626–2631 (1995)

Observation of Top Quark Production in p̅ p Collisions with the Collider Detector at Fermilab

Download: PDF (351 kB) Buy this article Export: BibTeX or EndNote (RIS)

F. Abe et al. CDF Collaboration
Show All Authors/Affiliations

Received 24 February 1995; published in the issue dated 3 April 1995

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.

© 1995 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.74.2626
DOI:
10.1103/PhysRevLett.74.2626
PACS:
14.65.Ha, 13.85.Qk, 13.85.Ni