The Higgs boson at the CMS experiment one year after the discovery

by Andrea Rizzi (INFN Pisa)

Wednesday 30 Oct 2013, 15:00 → 16:30 Europe/Rome

131 (INFN edificio C)

About one year ago the discovery of a new particle, with mass around 125 GeV and properties compatible with the expectations from the Higgs boson was announced. One year (and one Nobel prize announcement) later the scientific community seems to consider such particle as really being the Higgs boson. How did we get to such conclusion? What else can we learn about this particle? What do we know about its couplings to fermions and bosons ? In this colloquium we will summarize what the CMS experiment measured with the full 2012 dataset. Different production and decay modes of the Higgs boson have been analyzed by the CMS collaboration producing a much clearer picture of this new particle. Interpretations of the results are given both in term of Standard Model compatibility and as coupling measurements in simplified/effective models. The five main decay modes (gamma-gamma, ZZ, WW, tautau and b-bbar) are discussed with particular details in the Higgs to bb mode.