Publikace na Matematicko-fyzikální fakulta |
2014
Abstrakt
A search for the standard model Higgs boson produced in association with a topquark pair (ttH) is presented, using data samples corresponding to integrated luminosities of up to 5.1 fb1 and 19.7 fb1 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 ttH signal strength relative to the standard model cross section, m = s/sSM, under the assumption that the Higgs boson decays as expected in the standard model. The best fit value is m = 2.8 1.0 for a Higgs boson mass of 125.6 GeV.