Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/114812
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dc.contributor.authorAtlas, C.-
dc.contributor.authorAad, G.-
dc.contributor.authorAbbott, B.-
dc.contributor.authorAbdallah, J.-
dc.contributor.authorAbdinov, O.-
dc.contributor.authorAben, R.-
dc.contributor.authorAbolins, M.-
dc.contributor.authorAbouZeid, O.-
dc.contributor.authorAbramowicz, H.-
dc.contributor.authorAbreu, H.-
dc.contributor.authorAbreu, R.-
dc.contributor.authorAbulaiti, Y.-
dc.contributor.authorAcharya, B.-
dc.contributor.authorAdamczyk, L.-
dc.contributor.authorAdams, D.-
dc.contributor.authorAdelman, J.-
dc.contributor.authorAdomeit, S.-
dc.contributor.authorAdye, T.-
dc.contributor.authorAffolder, A.-
dc.contributor.authorAgatonovic-Jovin, T.-
dc.contributor.authoret al.-
dc.date.issued2016-
dc.identifier.citationEuropean Physical Journal C: Particles and Fields, 2016; 76(5):238-1-238-33-
dc.identifier.issn1434-6044-
dc.identifier.issn1434-6052-
dc.identifier.urihttp://hdl.handle.net/2440/114812-
dc.description.abstractThe distribution of particles inside hadronic jets produced in the decay of boosted W and Z bosons can be used to discriminate such jets from the continuum background. Given that a jet has been identified as likely resulting from the hadronic decay of a boosted W or Z boson, this paper presents a technique for further differentiating Z bosons from W bosons. The variables used are jet mass, jet charge, and a b-tagging discriminant. A likelihood tagger is constructed from these variables and tested in the simulation of W′→WZ for bosons in the transverse momentum range 200 GeV <pT< 400 GeV in s√=8 TeV pp collisions with the ATLAS detector at the LHC. For Z-boson tagging efficiencies of ϵZ=90, 50, and 10%, one can achieve W+-boson tagging rejection factors (1/ϵW+) of 1.7, 8.3 and 1000, respectively. It is not possible to measure these efficiencies in the data due to the lack of a pure sample of high pT, hadronically decaying Z bosons. However, the modelling of the tagger inputs for boosted W bosons is studied in data using a tt¯-enriched sample of events in 20.3 fb−1 of data at s√=8 TeV. The inputs are well modelled within uncertainties, which builds confidence in the expected tagger performance.-
dc.description.statementofresponsibilityG. Aad ... Paul D. Jackson … Lawrence Lee-Jr … Andreas Petridis … Nitesh Soni … Martin White … et al (Atlas Collaboration).-
dc.language.isoen-
dc.publisherSpringer-
dc.rights© CERN for the benefit of the ATLAS collaboration 2016. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.-
dc.source.urihttp://dx.doi.org/10.1140/epjc/s10052-016-4065-1-
dc.subjectAtlas Collaboration-
dc.titleA new method to distinguish hadronically decaying boosted Z bosons from W bosons using the ATLAS detector-
dc.typeJournal article-
dc.identifier.doi10.1140/epjc/s10052-016-4065-1-
pubs.publication-statusPublished-
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