A search for the standard model Higgs boson produced in association with a top-quark pair (t(t)over-bar 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 t(t)over-bar H signal strength relative to the standard model cross section, μ = σ/σ_SM,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.

Search for the associated production of the Higgs boson with a top-quark pair / V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, J. Erö, C. Fabjan, M. Friedl, R. Frühwirth, V. M. Ghete, C. Hartl, N. Hörmann, J. Hrubec, M. Jeitler, W. Kiesenhofer, V. Knünz, M. Krammer, I. Krätschmer, D. Liko, et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - STAMPA. - 09:087:(2014), pp. 1-64. [10.1007/JHEP09(2014)087]

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

CIULLI, VITALIANO;D'ALESSANDRO, RAFFAELLO;FOCARDI, ETTORE;GONZI, SANDRO;GORI, VALENTINA;LENZI, PIERGIULIO;TROPIANO, ANTONIO;
2014

Abstract

A search for the standard model Higgs boson produced in association with a top-quark pair (t(t)over-bar 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 t(t)over-bar H signal strength relative to the standard model cross section, μ = σ/σ_SM,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.
2014
09:087
1
64
V. Khachatryan; A. M. Sirunyan; A. Tumasyan; W. Adam; T. Bergauer; M. Dragicevic; J. Erö; C. Fabjan; M. Friedl; R. Frühwirth; V. M. Ghete; C. Hartl; N...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/899338
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