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

Loading...
Thumbnail Image
Date
2014
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract

A search for the standard model Higgs boson produced in association with a top-quark pair ((t\overline{t}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\overline{t}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.

Description
Keywords
Hadron-Hadron Scattering, Higgs physics, Top physics
Citation
Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., Fabjan, C., Friedl, M., Frühwirth, R., Ghete, V. M., Hartl, C., Hörmann, N., Hrubec, J., Jeitler, M., Kiesenhofer, W., Knünz, V., Krammer, M., … Woods, N. (2014). Search for the associated production of the Higgs boson with a top-quark pair. In Journal of High Energy Physics (Vol. 2014, Issue 9). Springer Science and Business Media LLC. https://doi.org/10.1007/jhep09(2014)087