A search for the standard model Higgs boson produced in association with a top-quark pair t t ¯ H left(mathrmtoverlinemathrmtmathrmH ight) is presented, using data samples corresponding to integrated luminosities of up to 5.1 fb-1and 19.7 fb-1collected 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 ¯ H mathrmtoverlinemathrmtmathrmH 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. [Figure not available: see fulltext.]

Khachatryan, V., Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., et al. (2014). Search for the associated production of the Higgs boson with a top-quark pair. JOURNAL OF HIGH ENERGY PHYSICS, 2014(9) [10.1007/JHEP09(2014)087].

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

DINARDO, MAURO EMANUELE;FIORENDI, SARA;GEROSA, RAFFAELE ANGELO;GHEZZI, ALESSIO;GOVONI, PIETRO;LUCCHINI, MARCO TOLIMAN;MANZONI, RICCARDO ANDREA;MARTELLI, ARABELLA;MARZOCCHI, BADDER;MORONI, LUIGI;PAGANONI, MARCO;RAGAZZI, STEFANO;TABARELLI DE FATIS, TOMMASO;Branca, A;De Guio, F;Massironi, A;
2014

Abstract

A search for the standard model Higgs boson produced in association with a top-quark pair t t ¯ H left(mathrmtoverlinemathrmtmathrmH ight) is presented, using data samples corresponding to integrated luminosities of up to 5.1 fb-1and 19.7 fb-1collected 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 ¯ H mathrmtoverlinemathrmtmathrmH 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. [Figure not available: see fulltext.]
Articolo in rivista - Articolo scientifico
Higgs physics; Keywords: Hadron-Hadron Scattering; Top physics; Nuclear and High Energy Physics
English
2014
2014
9
087
none
Khachatryan, V., Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., et al. (2014). Search for the associated production of the Higgs boson with a top-quark pair. JOURNAL OF HIGH ENERGY PHYSICS, 2014(9) [10.1007/JHEP09(2014)087].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/154957
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