Show simple item record

Observation of top quark pairs produced in association with a vector boson in pp collisions at s√=8 TeV

dc.contributor.authorCMS Collaboration
dc.date.accessioned2017-11-08T21:33:00Z
dc.date.available2017-11-08T21:33:00Z
dc.date.issued2016-01-18
dc.identifier.citationThe CMS collaboration, Khachatryan, V., Sirunyan, A.M. et al. J. High Energ. Phys. (2016) 2016: 96. https://doi.org/10.1007/JHEP01(2016)096en_US
dc.identifier.urihttp://hdl.handle.net/1808/25297
dc.description.abstractMeasurements of the cross sections for top quark pairs produced in association with a W or Z boson are presented, using 8 TeV pp collision data corresponding to an integrated luminosity of 19.5 fb−1, collected by the CMS experiment at the LHC. Final states are selected in which the associated W boson decays to a charged lepton and a neutrino or the Z boson decays to two charged leptons. Signal events are identified by matching reconstructed objects in the detector to specific final state particles from tt¯W or tt¯Z decays. The tt¯W cross section is measured to be 382− 102+ 117 fb with a significance of 4.8 standard deviations from the background-only hypothesis. The tt¯Z cross section is measured to be 242− 55+ 65 fb with a significance of 6.4 standard deviations from the background-only hypothesis. These measurements are used to set bounds on five anomalous dimension-six operators that would affect the tt¯W and tt¯Z cross sections.en_US
dc.publisherSpringer Verlagen_US
dc.rightsThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License, 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 madeen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.subjectElectroweak interactionen_US
dc.subjectHadron-Hadron scatteringen_US
dc.subjectTop physicsen_US
dc.titleObservation of top quark pairs produced in association with a vector boson in pp collisions at s√=8 TeVen_US
dc.typeArticleen_US
kusw.kudepartmentPhysics and Astronomyen_US
dc.identifier.doi10.1007/JHEP01(2016)096en_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccess


Files in this item

Thumbnail
Name:
CMSCollaboration_2016.pdf
Size:
3.178Mb
Format:
PDF
View/Open

This item appears in the following Collection(s)

Show simple item record

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License, 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
Except where otherwise noted, this item's license is described as: This article is distributed under the terms of the Creative Commons Attribution 4.0 International License, 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