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

Chatrchyan, Serguei

doi:10.1140/epjc/s10052-014-2758-x

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

Journal Article · Wed Jul 17 00:00:00 EDT 2013 · European Physical Journal. C, Particles and Fields

DOI:https://doi.org/10.1140/epjc/s10052-014-2758-x· OSTI ID:1128069

Chatrchyan, Serguei ^[1]

et al.

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.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: CMS Collaboration

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 1128069

Report Number(s):: FERMILAB-PUB-13-343-CMS; CERN-PH-EP-2013-124; CMS-TOP-11-017; arXiv eprint number arXiv:1307.4617

Journal Information:: European Physical Journal. C, Particles and Fields, Vol. 74, Issue 4; ISSN 1434-6044

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 31 works

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