Top decay to lepton+jets: CDF B tags and cross section
The top search in the lepton plus jets channel with the Collider Detector at Fermilab (CDF) is presented. The analysis uses a 67 pb{sup {minus}1} data sample of {ital p{bar p}} collisions at {radical}{ital s}=1.8 TeV. Soft lepton tagging (SLT) and secondary vertex tagging (SVX) of b jets are used to reduce backgrounds. A significant excess of events over expected backgrounds is seen, and together with the excess of observed events in the dilepton (DIL) channel, firmly establish the existence of the top quark. Combining all channels, the {ital t{bar t}} production cross section is measured to be {sigma}{sub {ital t{bar t}}}=7.6{sub {minus}2.0}{sup +2.4} {ital pb}. The Branching of top to Wb is measured to be Br(t{r_arrow}{ital Wb})=0.87{sup +0.13}{sub {minus}0.30}({ital stat}){sup +0.13}{sub {minus}0.11}({ital syst}). {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 284204
- Report Number(s):
- CONF-9505137--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 357; ISSN 0094-243X; ISSN APCPCS
- Country of Publication:
- United States
- Language:
- English
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