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https://hdl.handle.net/11147/5305
Title: | Search for the standard model Higgs boson produced in association with a top-quark pair in pp collisions at the LHC | Authors: | CMS Collaboration Karapınar, Güler |
Keywords: | Higgs boson Large Hadron Collider (LHC) Quark |
Publisher: | Springer Verlag | Source: | Chatrchyan, S, Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., ...CMS Collaboration (2013). Search for the standard model Higgs boson produced in association with a top-quark pair in pp collisions at the LHC. Journal of High Energy Physics, 2013(5). doi:10.1007/JHEP05(2013)145 | Abstract: | A search for the standard model Higgs boson produced in association with a top-quark pair is presented using data samples corresponding to an integrated luminosity of 5.0 fb-1 (5.1 fb-1) collected in pp collisions at the center-of-mass energy of 7 TeV (8 TeV). Events are considered where the top-quark pair decays to either one lepton+jets (tt̄ → ℓvqq̄bb̄) or dileptons (tt̄ → ℓ+vl- rfvn1̄bb̄), ℓ being an electron or a muon. The search is optimized for the decay mode H → bb̄. The largest background to the tt̄H signal is top-quark pair production with additional jets. Artificial neural networks are used to discriminate between signal and background events. Combining the results from the 7 TeV and 8 TeV samples, the observed (expected) limit on the cross section for Higgs boson production in association with top-quark pairs for a Higgs boson mass of 125 GeV is 5.8 (5.2) times the standard model expectation. [Figure not available: see fulltext.] © 2013 Cern for the benefit of the CMS collaboration. | URI: | http://doi.org/10.1007/JHEP05(2013)145 http://hdl.handle.net/11147/5305 |
ISSN: | 1029-8479 1029-8479 |
Appears in Collections: | Mathematics / Matematik Rectorate / Rektörlük Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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