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Title: Top quark mass measurements at the Tevatron and the standard model fits

Abstract

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.

Authors:
;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
908365
Report Number(s):
FERMILAB-CONF-07-137-E
arXiv eprint number arXiv:0705.3873; TRN: US0703673
DOE Contract Number:
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: Presented at 42nd Rencontres de Moriond on QCD and Hadronic Interactions, La Thuile, Italy, 17-24 Mar 2007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; FERMILAB TEVATRON; HIGGS BOSONS; QUANTUM CHROMODYNAMICS; STANDARD MODEL; T QUARKS; Experiment-HEP

Citation Formats

Wang, Michael H.L.S., and /Fermilab. Top quark mass measurements at the Tevatron and the standard model fits. United States: N. p., 2007. Web.
Wang, Michael H.L.S., & /Fermilab. Top quark mass measurements at the Tevatron and the standard model fits. United States.
Wang, Michael H.L.S., and /Fermilab. Tue . "Top quark mass measurements at the Tevatron and the standard model fits". United States. doi:. https://www.osti.gov/servlets/purl/908365.
@article{osti_908365,
title = {Top quark mass measurements at the Tevatron and the standard model fits},
author = {Wang, Michael H.L.S. and /Fermilab},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 01 00:00:00 EDT 2007},
month = {Tue May 01 00:00:00 EDT 2007}
}

Conference:
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  • A summary of the present Standard Model Higgs search and measurement of top quark mass at the Tevatron are presented. The sensitivity of the present Higgs search at the Tevatron is limited by statistics to a cross section approximately two orders of magnitude higher than the predicted cross section for standard model Higgs production. With 30 fb{sup -1} of integrated luminosity, the Tevatron offers an unique potential discovery window for the Standard Model Higgs mass up to 130 GeV/c{sup 2} before LHC era. The study of top at the Tevatron has moved from discovery phase to one of characterizing itsmore » properties. The combined result of top quark mass is 174.3 {+-} 5.1 GeV/c{sup 2} ({delta}m{sub t} =m{sub t} < 3%).« 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.
  • 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}.
  • No abstract prepared.