From Delaunay triangulations to pile-up subtraction: when theory and phenomenology meet experiments

by Matteo Cacciari (LPTHE Paris)

Friday 5 Apr 2019, 16:00 → 18:00 Europe/Rome

Aula Conversi (Dipartimento di Fisica - Ed. G.Marconi)

Hadron jets are a centerpiece of most analyses at the Large Hadron
Collider. In order to work with them effectively, one must be able to
properly define them, calculate their properties, extract them from data,
measure them with high accuracy. Their internal substructure can be at the
same time a mean to groom jets in an otherwise a noisy environment, and a
handle to identify specific particles. Progress on all these fronts has
been substantial in the past ten years. Thanks to the convergence of old
and new algorithms, better numerical implementations, ideas from other
fields, and close collaboration between theorists and experimentalists,
jets at the LHC are now a standard tool that can be used efficiently and
with confidence. In this talk I will present some of the main steps and
ideas that have led to this achievement.