Jet reconstruction techniques
W, Z and Higgs bosons decay predominantly into quarks which transform into sprays of particles called jets. In high energy proton-proton collisions at the LHC, the W/Z/H bosons can have such a large momentum that their decay products merge into a single particle jet. What is usually done to identify the decay products of the W/Z/H bosons as separate objects no longer works as they are merged in a single jet. It is therefore important to understand the substructure of these jets to identify the W/Z/H bosons by what is called W/Z/H-tagging.