Measurement of the tt̄ production cross section and top quark mass at DØ

Erich W. Varnes

doi:10.1063/1.1896702

Measurement of the tt̄ production cross section and top quark mass at DØ

Erich W. Varnes

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

I report on preliminary measurements of the tt̄ production cross section, and a measurement of the top quark mass, performed by the DØ Collaboration. The cross section is measured using candidates for dilepton, single-lepton, and all-hadronic tt̄ decays collected at DØ during RunII of the Tevatron. The results for the various modes are: σ _tt̄=14.3 _-4.3 ^+5.1(stat.) _-1.9 ^+2.6(syst.)±0.9(lumi.)pb(dilepton) σ _tt̄=7.2 _-2.4 ^+2.6(stat.) _-1.7 ^+1.6(syst.)±0.5(lumi.)pb(lepton+jets) σ _tt̄=7.7 _-3.3 ^+3.4(stat.) _-3.7 ^+4.7(syst.)±0.5(lumi.)pb6(all-hadronic). The mass measurement uses an improved method to re-analyze lepton+jets events collected during RunI of the Tevatron, and obtains m _t = 180.1 ± 3.6 (stat.) ± 4.0 (syst.) GeV/c ².

Original language	English (US)
Title of host publication	HADRON COLLIDER PHYSICS
Subtitle of host publication	15th Topical Conference on Hadron Collider Physics, HCP2004
Pages	205-213
Number of pages	9
DOIs	https://doi.org/10.1063/1.1896702
State	Published - Mar 22 2005
Event	15th Topical Conference on Hadron Collider Physics, HCP2004 - East Lansing, MI, United States Duration: Jun 14 2004 → Jun 18 2004

Publication series

Name	AIP Conference Proceedings
Volume	753
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	15th Topical Conference on Hadron Collider Physics, HCP2004
Country/Territory	United States
City	East Lansing, MI
Period	6/14/04 → 6/18/04

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.1896702

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title = "Measurement of the t{\=t} production cross section and top quark mass at D{\O}",

abstract = "I report on preliminary measurements of the t{\=t} production cross section, and a measurement of the top quark mass, performed by the D{\O} Collaboration. The cross section is measured using candidates for dilepton, single-lepton, and all-hadronic t{\=t} decays collected at D{\O} during RunII of the Tevatron. The results for the various modes are: σ t{\=t}=14.3 -4.3 +5.1(stat.) -1.9 +2.6(syst.)±0.9(lumi.)pb(dilepton) σ t{\=t}=7.2 -2.4 +2.6(stat.) -1.7 +1.6(syst.)±0.5(lumi.)pb(lepton+jets) σ t{\=t}=7.7 -3.3 +3.4(stat.) -3.7 +4.7(syst.)±0.5(lumi.)pb6(all-hadronic). The mass measurement uses an improved method to re-analyze lepton+jets events collected during RunI of the Tevatron, and obtains m t = 180.1 ± 3.6 (stat.) ± 4.0 (syst.) GeV/c 2.",

author = "Varnes, {Erich W.}",

year = "2005",

month = mar,

day = "22",

doi = "10.1063/1.1896702",

language = "English (US)",

isbn = "0735402388",

series = "AIP Conference Proceedings",

pages = "205--213",

booktitle = "HADRON COLLIDER PHYSICS",

note = "15th Topical Conference on Hadron Collider Physics, HCP2004 ; Conference date: 14-06-2004 Through 18-06-2004",

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AU - Varnes, Erich W.

PY - 2005/3/22

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N2 - I report on preliminary measurements of the tt̄ production cross section, and a measurement of the top quark mass, performed by the DØ Collaboration. The cross section is measured using candidates for dilepton, single-lepton, and all-hadronic tt̄ decays collected at DØ during RunII of the Tevatron. The results for the various modes are: σ tt̄=14.3 -4.3 +5.1(stat.) -1.9 +2.6(syst.)±0.9(lumi.)pb(dilepton) σ tt̄=7.2 -2.4 +2.6(stat.) -1.7 +1.6(syst.)±0.5(lumi.)pb(lepton+jets) σ tt̄=7.7 -3.3 +3.4(stat.) -3.7 +4.7(syst.)±0.5(lumi.)pb6(all-hadronic). The mass measurement uses an improved method to re-analyze lepton+jets events collected during RunI of the Tevatron, and obtains m t = 180.1 ± 3.6 (stat.) ± 4.0 (syst.) GeV/c 2.

AB - I report on preliminary measurements of the tt̄ production cross section, and a measurement of the top quark mass, performed by the DØ Collaboration. The cross section is measured using candidates for dilepton, single-lepton, and all-hadronic tt̄ decays collected at DØ during RunII of the Tevatron. The results for the various modes are: σ tt̄=14.3 -4.3 +5.1(stat.) -1.9 +2.6(syst.)±0.9(lumi.)pb(dilepton) σ tt̄=7.2 -2.4 +2.6(stat.) -1.7 +1.6(syst.)±0.5(lumi.)pb(lepton+jets) σ tt̄=7.7 -3.3 +3.4(stat.) -3.7 +4.7(syst.)±0.5(lumi.)pb6(all-hadronic). The mass measurement uses an improved method to re-analyze lepton+jets events collected during RunI of the Tevatron, and obtains m t = 180.1 ± 3.6 (stat.) ± 4.0 (syst.) GeV/c 2.

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Measurement of the tt̄ production cross section and top quark mass at DØ

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