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Measurement of the jet mass in highly boosted tt¯ events from pp collisions at s√=8 TeV

dc.contributor.authorCMS Collaboration
dc.date.accessioned2018-10-11T16:22:51Z
dc.date.available2018-10-11T16:22:51Z
dc.date.issued2017-07
dc.identifier.citationSirunyan, A.M., Tumasyan, A., Adam, W. et al. Eur. Phys. J. C (2017) 77: 467. https://doi.org/10.1140/epjc/s10052-017-5030-3en_US
dc.identifier.urihttp://hdl.handle.net/1808/26816
dc.description.abstractThe first measurement of the jet mass mjet of top quark jets produced in tt¯ events from pp collisions at s√=8 TeV is reported for the jet with the largest transverse momentum pT in highly boosted hadronic top quark decays. The data sample, collected with the CMS detector, corresponds to an integrated luminosity of 19.7 fb−1 . The measurement is performed in the lepton+jets channel in which the products of the semileptonic decay t→bW with W→ℓν where ℓ is an electron or muon, are used to select tt¯ events with large Lorentz boosts. The products of the fully hadronic decay t→bW with W→qq¯¯¯′ are reconstructed using a single Cambridge–Aachen jet with distance parameter R=1.2 , and pT>400 GeV . The tt¯ cross section as a function of mjet is unfolded at the particle level and is used to test the modelling of highly boosted top quark production. The peak position of the mjet distribution is sensitive to the top quark mass mt , and the data are used to extract a value of mt to assess this sensitivity.en_US
dc.publisherSpringer Verlagen_US
dc.rights© CERN for the benefit of the CMS collaboration 2017 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.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.subjectCMSen_US
dc.subjectPhysicsen_US
dc.subjectTop quark cross sectionen_US
dc.subjectTop quark massen_US
dc.titleMeasurement of the jet mass in highly boosted tt¯ events from pp collisions at s√=8 TeVen_US
dc.typeArticleen_US
kusw.kuauthorBaringer, Philip S.
kusw.kudepartmentPhysics and Astronomyen_US
dc.identifier.doihttps://doi.org/10.1140/epjc/s10052-017-5030-3en_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccessen_US


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© CERN for the benefit of the CMS collaboration 2017 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.
Except where otherwise noted, this item's license is described as: © CERN for the benefit of the CMS collaboration 2017 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.