Title
Measurement of the charge asymmetry in top quark pair production in pp collisions at <tex>$\sqrt{s}$</tex>=8 TeV using a template method Measurement of the charge asymmetry in top quark pair production in pp collisions at <tex>$\sqrt{s}$</tex>=8 TeV using a template method
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Subject
Physics
Source (journal)
PHYSICAL REVIEW D
Volume/pages
93(2016) :3 , 27 p.
ISSN
2470-0010
Article Reference
034014
ISI
000370618500002
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The charge asymmetry in the production of top quark and antiquark pairs is measured in proton-proton collisions at a center-of-mass energy of 8 TeV. The data, corresponding to an integrated luminosity of 19.6 fb(-1), were collected by the CMS experiment at the LHC. Events with a single isolated electron or muon, and four or more jets, at least one of which is likely to have originated from hadronization of a bottom quark, are selected. A template technique is used to measure the asymmetry in the distribution of differences in the top quark and antiquark absolute rapidities. The measured asymmetry is A(c)(y) = [0.33 +/- 0.26(stat) +/- 0.33(syst)]%, which is the most precise result to date. The results are compared to calculations based on the standard model and on several beyond-the-standard-model scenarios.
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Full text (open access)
https://repository.uantwerpen.be/docman/irua/329ca3/132297.pdf
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