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

Our search for the standard model Higgs boson produced in association with a top-quark pair (ttH) 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 searc...

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Bibliographic Details
Published in:The journal of high energy physics 2014-10, Vol.2014 (10)
Main Author: Khachatryan, Vardan
Format: Article
Language:English
Subjects:
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Online Access:Get full text
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Summary:Our search for the standard model Higgs boson produced in association with a top-quark pair (ttH) 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. These results are characterized by an observed ttH 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
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP10(2014)106