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dc.contributor.authorCMS Collaboration
Adair, A.
Boulahouache, C.
Cuplov, V.
Ecklund, K.M.
Geurts, F.J.M.
Padley, B.P.
Redjimi, R.
Roberts, J.
Zabel, J.
dc.date.accessioned 2015-07-15T12:52:25Z
dc.date.available 2015-07-15T12:52:25Z
dc.date.issued 2012
dc.identifier.citation CMS Collaboration, Adair, A., Boulahouache, C., et al.. "Search for anomalous t¯t production in the highly-boosted all-hadronic final state." Journal of High Energy Physics, 2012, no. 29 (2012) Springer: http://dx.doi.org/10.1007/JHEP09(2012)029.
dc.identifier.urihttps://hdl.handle.net/1911/81019
dc.description.abstract A search is presented for a massive particle, generically referred to as a Z′, decaying into a tt¯ pair. The search focuses on Z′ resonances that are sufficiently massive to produce highly Lorentz-boosted top quarks, which yield collimated decay products that are partially or fully merged into single jets. The analysis uses new methods to analyze jet substructure, providing suppression of the non-top multijet backgrounds. The analysis is based on a data sample of proton-proton collisions at a center-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 5 fb−1. Upper limits in the range of 1 pb are set on the product of the production cross section and branching fraction for a topcolor Z′ modeled for several widths, as well as for a Randall-Sundrum Kaluza-Klein gluon. In addition, the result contrain any enhancement in tt¯ production beyond expectations of the standard mode for tt invariant mass larger than 1 TeV/c 2.
dc.language.iso eng
dc.publisher Springer
dc.rights JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.title Search for anomalous t¯t production in the highly-boosted all-hadronic final state
dc.type Journal article
dc.citation.journalTitle Journal of High Energy Physics
dc.subject.keywordHadron-Hadron Scattering
dc.citation.volumeNumber 2012
dc.citation.issueNumber 29
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1007/JHEP09(2012)029
dc.type.publication publisher version


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JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0
Except where otherwise noted, this item's license is described as JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0