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Search for the associated production of the Higgs boson with a top-quark pair


CMS Collaboration; et al; Canelli, F; Chiochia, V; De Cosa, A; Hinzmann, A; Hreus, T; Kilminster, B; Lange, C; Mejias, B; Ngadiuba, J; Robmann, P; Ronga, F J; Taroni, S; Verzetti, M; Yang, Yong (2014). Search for the associated production of the Higgs boson with a top-quark pair. Journal of High Energy Physics, 2014(87):online.

Abstract

A search for the standard model Higgs boson produced in association with a top-quark pair (tt⎯H) is presented, using data samples corresponding to integrated luminosities of up to 5.1 fb−1 and 19.7 fb−1 collected in pp collisions at center-of-mass energies of 7 TeV and 8 TeV respectively. The search is based on the following signatures of the Higgs boson decay: H → hadrons, H → photons, and H → leptons. The results are characterized by an observed tt⎯H signal strength relative to the standard model cross section, μ=σ/σSM,under the assumption that the Higgs boson decays as expected in the standard model. The best fit value is μ = 2.8 ± 1.0 for a Higgs boson mass of 125.6 GeV.

Abstract

A search for the standard model Higgs boson produced in association with a top-quark pair (tt⎯H) is presented, using data samples corresponding to integrated luminosities of up to 5.1 fb−1 and 19.7 fb−1 collected in pp collisions at center-of-mass energies of 7 TeV and 8 TeV respectively. The search is based on the following signatures of the Higgs boson decay: H → hadrons, H → photons, and H → leptons. The results are characterized by an observed tt⎯H signal strength relative to the standard model cross section, μ=σ/σSM,under the assumption that the Higgs boson decays as expected in the standard model. The best fit value is μ = 2.8 ± 1.0 for a Higgs boson mass of 125.6 GeV.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2014
Deposited On:27 Nov 2014 09:24
Last Modified:05 Apr 2016 18:33
Publisher:Springer
ISSN:1029-8479
Additional Information:The final publication is available at link.springer.com
Publisher DOI:https://doi.org/10.1007/JHEP09(2014)087
Related URLs:http://arxiv.org/abs/1408.1682

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