Combination of CDF and D0 Results on the Mass of the Top Quark Using Up $9.7\
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Published: 2016
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Combination of CDF and D0 Results on the Mass of the Top Quark Using Up to 5.8~fb-1 of Data
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Published: 2011
Total Pages: 16
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DOWNLOAD EBOOKWe summarize the top-quark mass measurements from the CDF and D0 experiments at Fermilab. We combine published Run I (1992--1996) measurements with the most precise published and preliminary Run II (2001--present) measurements using up to 5.8 fb−1 of data, adding new analyses (the missing transverse energy plus jets analysis) and updating old ones. Taking uncertainty correlations into account, and adding in quadrature the statistical and systematic uncertainties, the resulting preliminary Tevatron average mass of the top quark is M{sub t} = 173.2 ± 0.9 GeV/c2.
Combination of CDF and D0 Results on the Mass of the Top Quark Using Up to 9.7 Fb$^{-1}$ at the Tevatron
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Published: 2014
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DOWNLOAD EBOOKCombination of CDF and D0 Results on the Mass of the Top Quark
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Published: 2006
Total Pages: 13
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DOWNLOAD EBOOKWe summarize the top-quark mass measurements from the CDF and D0 experiments at Fermilab. We combine published Run-I (1992-1996) measurements with the most recent preliminary Run-II (2001-present) measurements using up to 1 fb−1 of data. Taking correlated uncertainties properly into account the resulting preliminary world average mass of the top quark is M{sub t} = 171.4 ± 1.2(stat) ± 1.8(syst) GeV/c2, which corresponds to a total uncertainty of 2.1 GeV/c2. The top-quark mass is now known with a precision of 1.2%.
Combination of CDF and DO Results on the Mass of the Top Quark Using Up to 8.7 Fb{̂-1} at the Tevatron
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Published: 2013
Total Pages: 6
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DOWNLOAD EBOOKCombining the Top Quark Mass Results for Run 1 from CDF and D-Zero
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Published: 1999
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DOWNLOAD EBOOKCDF and D0 have published or submitted for publication eleven papers [1-11] that include direct experimental measurements of the top quark mass. Each experiment has found that the lepton+jets channel [1,5,6,9,10,11,12] gives the most precise result. However, CDF and D0 have also measured the top quark mass in other decay topologies. Both D0 [2,6] and CDF [3,4] have published additional results in the dilepton channels, while CDF [8] has published a result in the all-hadronic channel. Our aim in this note is to reduce the overall uncertainty on the top quark mass measurement by combining the most recent and final of these measurements [1,2,3,7,8]. This note combines the mass from the five separate measurements taking into account the statistical and systematic uncertainties as well as the correlations in the systematic uncertainties. The final Tevatron top mass based on Run 1 data is m{sub t} = 174.3 " 3.2(stat) " 4.0(syst) GeV/c2. Combining the statistical and systematic uncertainties, the top mass is m{sub t} = 174.3 " 5.1 GeV/c2.
Top Mass and Cross Section Results from CDF and D0 at the Fermilab Tevatron
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Published: 1999
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DOWNLOAD EBOOKMeasurements of the top quark mass and the t{bar t} production cross section, obtained by CDF and D0 Collaborations at the Tevatron, are presented. The methodology of analyses and their underlying assumptions are summarized. The CDF and D0 top mass averages, based on H"00 pb−1 of data collected by each experiment in Run-I, and obtained from a set of selected measurements in several channels are M{sub t} = 176:0 ± 4:0(stat) ± 5:1(syst) GeV/c{sup 2} and M{sub t} = 172:1 ± 5:2(stat) ± 4:9(syst) GeV/c{sup 2}, respectively. The combined Tevatron top quark mass is M{sub t} = 174:3 ±3:2(stat) ±4:0(syst) GeV/c}sup 2}, where the correlations between CDF and D0 averages were taken into account. The CDF measurement of the t{bar t} cross section (assuming M{sub t} = 175 GeV/c{sup 2}) is [sigma]{sub tt} = 7.6{sup 1.8}{sub 1.5} pb, and the D0 value (assuming M{sub t} = 172.1 GeV/c{sup 2}) is [sigma]{sub tt} = 5:9 ± 1:7 pb. In anticipation of the much increased statistics in Run-II, the fact that top quark physics is one of the best windows to new physics beyond the Standard Model is emphasized.
Combination of CDF and D0 Results on the Top-quark Mass
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Published: 2005
Total Pages: 11
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DOWNLOAD EBOOKTop Quark Mass
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Published: 2009
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DOWNLOAD EBOOKA summary of the most up-to-date top quark mass measurements at CDF is presented. These analyses use top-antitop candidate events detected in the CDF experiment at the Tevatron collider with an integrated luminosity of up to (almost equal to)3/fb. The combination of all those measurements together with the corresponding top mass measurements from the concurrently running D0 experiment at the Tevatron yields a world average of M{sub t} = [173.1 ± 0.6(stat.) ± 1.1(syst.)] GeV/c2.
Recent Results in the Top Quark Sector from the D0 Experiment
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Published: 2015
Total Pages: 9
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DOWNLOAD EBOOKIn these proceedings, I review recent measurements in the top quark sector in pp-bar collisions at a centre-of-mass energy of √s = 1.96 TeV in Run II of the Fermilab Tevatron Collider using the D0 detector. I will present the differential measurement of the tt-bar production cross section and the Tevatron combination of inclusive tt-bar cross section measurements; the first evidence of the production of single top quarks in the s-channel by D0 and the observation in combination with CDF. Furthermore, I will review the measurements of the forward-backward asymmetry in tt-bar events, and conclude with the world's most precise single measurement of the top quark mass, which is a fundamental parameter of the standard model, and present the Tevatron combination, which is the world's most precise determination of the top quark mass, with a relative precision of 0.37%.
