Speaker
Description
The theoretical description of jet substructure observables involves the study of their radiation pattern in all corners of phase space. In this talk, I will
focus on the properties of the hardest splitting in a QCD jet, as defined by the Dynamical Grooming method, both in vacuum and in heavy-ion collisions. After presenting some interesting properties from the resummation point of view, I will present the first theory-to-data comparison of dynamically groomed observables in proton-proton collisions. On the heavy-ion part of the talk I will show that the opening angle and transverse momentum of this splitting are potential candidates to experimentally measure the resolution length and the quasi-particle nature of the Quark-Gluon Plasma, respectively.
