Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7731
Title: Evidence for associated production of a Higgs boson with a top quark pair in final states with electrons, muons, and hadronically decaying ? leptons at ?s=13 TeV
Authors: CMS Collaboration
Karapınar, Güler
Keywords: Higgs physics
Top physics
Higgs boson
Top quarks
Issue Date: Aug-2018
Publisher: Springer Verlag
Source: Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J. ...CMS Collaboration (2018). Evidence for associated production of a Higgs boson with a top quark pair in final states with electrons, muons, and hadronically decaying τ leptons at √s=13 TeV. Journal of High Energy Physics, 2018(8). doi:10.1007/JHEP08(2018)066
Abstract: Results of a search for the standard model Higgs boson produced in association with a top quark pair (t t ¯ H) in final states with electrons, muons, and hadronically decaying τ leptons are presented. The analyzed data set corresponds to an integrated luminosity of 35.9 fb−1 recorded in proton-proton collisions at s=13 TeV by the CMS experiment in 2016. The sensitivity of the search is improved by using matrix element and machine learning methods to separate the signal from backgrounds. The measured signal rate amounts to 1.23− 0.43 + 0.45 times the production rate expected in the standard model, with an observed (expected) significance of 3.2σ (2.8σ), which represents evidence for t t ¯ H production in those final states. An upper limit on the signal rate of 2.1 times the standard model production rate is set at 95% confidence level.
URI: https://doi.org/10.1007/JHEP08(2018)066
https://hdl.handle.net/11147/7731
ISSN: 1029-8479
1029-8479
Appears in Collections:Mathematics / Matematik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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