Fully hadronic ttH(bb) search

Characterising the associated production of top quark pairs and Higgs bosons (ttH process) at the LHC is the most direct way to study the top quark Yukawa coupling, a crucial parameter of the standard model of Particle Physics. For the forthcoming analysis of the full datasets collected by CMS during the LHC Run 2, it is imperative to optimise the analysis techniques to make sure the best possible sensitivity is attained. In this context, the implementation of new b-tagging algorithms in the search for ttH in the all-jet channel, together with MC simulation, will help to handle the large QCD multijet background. Furthermore, a binning optimization shall be performed in order to attain better sensitivity. The analysis uses $\sqrt{s}$ = 13 TeV proton-proton (pp) collision data collected by the CMS detector in 2018, with a correspondent integrated luminosity of 54.9 fb$^{−1}$.