Please use this identifier to cite or link to this item: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/2764
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dc.contributor.authorCMS Collaborationen_US
dc.contributor.authorKhachatryan, V.en_US
dc.contributor.authorSHARMA, SEEMA et al.en_US
dc.date.accessioned2019-04-29T10:17:49Z
dc.date.available2019-04-29T10:17:49Z
dc.date.issued2016-01en_US
dc.identifier.citationPhysical Review D, 93(1), 012001.en_US
dc.identifier.issn2470-0010en_US
dc.identifier.issn2470-0029en_US
dc.identifier.urihttp://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/2764-
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.93.012001en_US
dc.description.abstractA search is performed for the production of heavy resonances decaying into top-antitop quark pairs in proton-proton collisions at √ s = 8     TeV . Data used for the analyses were collected with the CMS detector and correspond to an integrated luminosity of 19.7     fb − 1 . The search is performed using events with three different final states, defined by the number of leptons (electrons and muons) from the t ¯ t → W b W b decay. The analyses are optimized for reconstruction of top quarks with high Lorentz boosts, where jet substructure techniques are used to enhance the sensitivity. Results are presented for all channels and a combination is performed. No significant excess of events relative to the expected yield from standard model processes is observed. Upper limits on the production cross section of heavy resonances decaying to t ¯ t are calculated. A narrow leptophobic topcolor Z ′ resonance with a mass below 2.4 TeV is excluded at 95% confidence level. Limits are also derived for a broad Z ′ resonance with a 10% width relative to the resonance mass, and a Kaluza-Klein excitation of the gluon in the Randall-Sundrum model. These are the most stringent limits to date on heavy resonances decaying into top-antitop quark pairs.en_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.subjectTop-antitopen_US
dc.subjectLeptophobic topcoloren_US
dc.subjectRandall-Sundrum modelen_US
dc.subjectProton-proton collisionsen_US
dc.subjectResonanten_US
dc.subject2016en_US
dc.titleSearch for resonant t ¯ t production in proton-proton collisions at √s = 8     TeVen_US
dc.typeArticleen_US
dc.contributor.departmentDept. of Physicsen_US
dc.identifier.sourcetitlePhysical Review Den_US
dc.publication.originofpublisherForeignen_US
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