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Title: Measurement of the top-quark mass in all-jets $$t\bar{t}$$ events in pp collisions at $$\sqrt{s}$$=7 TeV

Abstract

The mass of the top quark is measured using a sample of $$t\bar{t}$$ candidate events with at least six jets in the final state. The sample is selected from data collected with the CMS detector in pp collisions at $$\sqrt{s}$$ = 7 TeV in 2011 and corresponds to an integrated luminosity of 3.54 inverse femtobarns. The mass is reconstructed for each event employing a kinematic fit of the jets to a $$t\bar{t}$$ hypothesis. The top-quark mass is measured to be 173.49 $$\pm$$ 0.69 (stat.) $$\pm$$ 1.21 (syst.) GeV. A combination with previously published measurements in other decay modes by CMS yields a mass of 173.54 $$\pm$$ 0.33 (stat.) $$\pm$$ 0.96 (syst.) GeV.

Authors:
 [1]
  1. et al.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
CMS Collaboration
OSTI Identifier:
1128069
Report Number(s):
FERMILAB-PUB-13-343-CMS; CERN-PH-EP-2013-124; CMS-TOP-11-017
Journal ID: ISSN 1434-6044; arXiv eprint number arXiv:1307.4617
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 74; Journal Issue: 4; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Chatrchyan, Serguei. Measurement of the top-quark mass in all-jets $t\bar{t}$ events in pp collisions at $\sqrt{s}$=7 TeV. United States: N. p., 2013. Web. doi:10.1140/epjc/s10052-014-2758-x.
Chatrchyan, Serguei. Measurement of the top-quark mass in all-jets $t\bar{t}$ events in pp collisions at $\sqrt{s}$=7 TeV. United States. doi:10.1140/epjc/s10052-014-2758-x.
Chatrchyan, Serguei. Wed . "Measurement of the top-quark mass in all-jets $t\bar{t}$ events in pp collisions at $\sqrt{s}$=7 TeV". United States. doi:10.1140/epjc/s10052-014-2758-x. https://www.osti.gov/servlets/purl/1128069.
@article{osti_1128069,
title = {Measurement of the top-quark mass in all-jets $t\bar{t}$ events in pp collisions at $\sqrt{s}$=7 TeV},
author = {Chatrchyan, Serguei},
abstractNote = {The mass of the top quark is measured using a sample of $t\bar{t}$ candidate events with at least six jets in the final state. The sample is selected from data collected with the CMS detector in pp collisions at $\sqrt{s}$ = 7 TeV in 2011 and corresponds to an integrated luminosity of 3.54 inverse femtobarns. The mass is reconstructed for each event employing a kinematic fit of the jets to a $t\bar{t}$ hypothesis. The top-quark mass is measured to be 173.49 $\pm$ 0.69 (stat.) $\pm$ 1.21 (syst.) GeV. A combination with previously published measurements in other decay modes by CMS yields a mass of 173.54 $\pm$ 0.33 (stat.) $\pm$ 0.96 (syst.) GeV.},
doi = {10.1140/epjc/s10052-014-2758-x},
journal = {European Physical Journal. C, Particles and Fields},
issn = {1434-6044},
number = 4,
volume = 74,
place = {United States},
year = {2013},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

Figures / Tables:

Table 1 Table 1: Number of events, the predicted signal fraction in the data sample, and the selection efficiency for signal after each selection step. The predicted signal fraction is derived from simulation assuming a $t\bar{t}$ cross section of 163 pb [23] and a top-quark mass of 172.5 GeV

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      Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.