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Title: Precision measurements of the top quark mass at the Tevatron

Abstract

We report precision measurements of the top quark mass using events collected by the D0 and CDF II detectors from p{bar p} collisions at {radical}s = 1.96 TeV at the Fermilab Tevatron. Measurements are presented in multiple decay channels. In addition, we present a combination of the most precise measurements in each channel to date: M{sub top} = 172.5 {+-} 1.3{sub stat} {+-} 1.9{sub syst} GeV/c{sup 2}.

Authors:
;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
892324
Report Number(s):
FERMILAB-CONF-06-179-E
arXiv eprint number hep-ex/0605106; TRN: US200711%%431
DOE Contract Number:
AC02-76CH03000
Resource Type:
Conference
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCURACY; DECAY; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; T QUARKS; Experiment-HEP

Citation Formats

Whiteson, Daniel, and /Pennsylvania U. Precision measurements of the top quark mass at the Tevatron. United States: N. p., 2006. Web.
Whiteson, Daniel, & /Pennsylvania U. Precision measurements of the top quark mass at the Tevatron. United States.
Whiteson, Daniel, and /Pennsylvania U. Mon . "Precision measurements of the top quark mass at the Tevatron". United States. doi:. https://www.osti.gov/servlets/purl/892324.
@article{osti_892324,
title = {Precision measurements of the top quark mass at the Tevatron},
author = {Whiteson, Daniel and /Pennsylvania U.},
abstractNote = {We report precision measurements of the top quark mass using events collected by the D0 and CDF II detectors from p{bar p} collisions at {radical}s = 1.96 TeV at the Fermilab Tevatron. Measurements are presented in multiple decay channels. In addition, we present a combination of the most precise measurements in each channel to date: M{sub top} = 172.5 {+-} 1.3{sub stat} {+-} 1.9{sub syst} GeV/c{sup 2}.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2006},
month = {Mon May 01 00:00:00 EDT 2006}
}

Conference:
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  • The top quark is the heaviest of the six quarks of the Standard Model. Precise knowledge of its mass is important for imposing constraints on a number of physics processes, including interactions of the as yet unobserved Higgs boson. The Higgs boson is the only missing particle of the Standard Model, central to the electroweak symmetry breaking mechanism and generation of particle masses. In this Review, experimental measurements of the top quark mass accomplished at the Tevatron, a proton-antiproton collider located at the Fermi National Accelerator Laboratory, are described. Topologies of top quark events and methods used to separate signalmore » events from background sources are discussed. Data analysis techniques used to extract information about the top mass value are reviewed. The combination of several most precise measurements performed with the two Tevatron particle detectors, CDF and D0, yields a value of M{sub t} = 173.3 {+-} 1.1 GeV/c{sup 2}.« less
  • We review the measurements of the top quark mass by the CDF and D0 collaborations using Run I data in excess of 1.00 pb{sup -1}. The D0 collaboration has recently updated its measurement of the top quark mass in the lepton + jets channel. The world average of the top quark mass from the CDF and D0 measurements in the lepton + jets channel now stands at 175.6 {+-} 5.5 GeV/c{sup 2}.
  • The general strategy, as well as channel-specific details, applied to the measurement of the top quark mass at the Tevatron in Run I are reviewed, and the combination of the results obtained by the CDF and D0 collaborations presented. The accelerator and detector upgrades for Run II are described, and expected improvements in the systematic uncertainties on the measurement evaluated.
  • New measurements of the top quark mass from the Tevatron are presented. Combined with previous results, they yield a preliminary new world average of m{sub top} = 170.9 {+-} 1.1(stat) {+-} 1.5(syst)GeV/c{sup 2} and impose new constraints on the mass of the Higgs boson.
  • No abstract prepared.