Measuring Higgs properties using jet substructure

por Michael Spannowsky (Durham University, UK)

lunes 16 dic. 2013 10:30 → 11:30 Europe/Madrid

Seminar Room 1.1.1 (IFIC)

The discovery of a Higgs boson by both multipurpose experiments, ATLAS and CMS, constitutes a paradigm shift in our understanding of electroweak symmetry breaking. This discovery raises the questions if the observed Higgs boson is the long-ago predicted Higgs boson of the Standard model or if it is part of a non-minimal realization of a spontaneous-symmetry-breaking mechanism. Detailed measurements of its properties and couplings are necessary to answer this question. After a brief introduction of subjet techniques I will argue that studying hadronic decays of the Higgs boson is of utmost importance to measure some of the most important Higgs couplings, e.g Hbb, Htt or HHH. I will present methods which can maximize the experiments' sensitivity in measuring Higgs properties in the forthcoming LHC runs.