Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5910
 Title: Search for vector-like T quarks decaying to top quarks and Higgs bosons in the all-hadronic channel using jet substructure Authors: CMS CollaborationKarapınar, Güler Keywords: Compact Muon SolenoidLarge Hadron Collider (LHC)Quark Issue Date: Jun-2015 Publisher: Springer Verlag Source: Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M.,...CMS Collaboration (2015). Search for vector-like T quarks decaying to top quarks and Higgs bosons in the all-hadronic channel using jet substructure. Journal of High Energy Physics, 2015(6). doi:10.1007/JHEP06(2015)080 Abstract: A search is performed for a vector-like heavy T quark that is produced in pairs and that decays to a top quark and a Higgs boson. The data analysed correspond to an integrated luminosity of 19.7 fb−1 collected with the CMS detector in proton-proton collisions at s=8$$\sqrt{s}=8$$ TeV. For T quarks with large mass values the top quarks and Higgs bosons can have significant Lorentz boosts, so that their individual decay products often overlap and merge. Methods are applied to resolve the substructure of such merged jets. Upper limits on the production cross section of a T quark with mass between 500 and 1000 GeV/c2 are derived. If the T quark decays exclusively to tH, the observed (expected) lower limit on the mass of the T quark is 745 (773) GeV/c2 at 95% confidence level. For the first time an algorithm is used for tagging boosted Higgs bosons that is based on a combination of jet substructure information and b tagging. URI: http://doi.org/10.1007/JHEP06(2015)080http://hdl.handle.net/11147/5910 ISSN: 1029-8479 Appears in Collections: Mathematics / MatematikScopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications CollectionWoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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