Standard Model Measurements

Abstract

Jet substructure measurements at the LHC can broadly be divided into two classes: measurements of jet substructure observables and measurements using jet substructure. The first class enables detailed studies of the dynamics of jet production and the energy flow within jets. These measurements can be used to test the modelling of jet substructure observables, verify analytical calculations and extract fundamental parameters of the theory. The second class are measurements made possible by jet substructure techniques. These include studies of top quark or electroweak boson production at very high transverse momenta. In most cases, the channels analysed would not be accessible without the use of jet substructure techniques. The high momenta probed in these measurements allow to study the validity of the SM up to the highest scales reachable at the LHC. These measurements can also be used to place important constraints on BSM theories, which predict deviations from the SM expectations in the high-energy tails of the measured distributions.