Title
Measurement of the <tex>$t\bar{t}$</tex> production cross section in the <tex>$\tau$</tex> plus jets channel in pp collisions at <tex>$\sqrt{s}=7TeV$</tex> Measurement of the <tex>$t\bar{t}$</tex> production cross section in the <tex>$\tau$</tex> plus jets channel in pp collisions at <tex>$\sqrt{s}=7TeV$</tex>
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Berlin ,
Subject
Physics
Source (journal)
European physical journal : C : particles and fields. - Berlin
Volume/pages
73(2013) :4 , p. 1-18
ISSN
1434-6044
Article Reference
2386
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The top-quark pair production cross section in 7 TeV center-of-mass energy proton-proton collisions is measured using data collected by the CMS detector at the LHC. The measurement uses events with one jet identified as a hadronically decaying tau lepton and at least four additional energetic jets, at least one of which is identified as coming from a b quark. The analyzed data sample corresponds to an integrated luminosity of 3.9 fb(-1) recorded by a dedicated multijet plus hadronically decaying tau trigger. A neural network has been developed to separate the top-quark pairs from the W + jets and multijet backgrounds. The measured value of sigma(t (t) over bar) = 152 +/- 12 (stat.) +/- 32 (syst.) +/- 3 (lum.) pb is consistent with the standard model predictions.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/5c584e/4083.pdf
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