Erlangen 2026 – scientific programme
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AKjDPG: Arbeitskreis junge DPG
AKjDPG 1: jDPG Tutorials
AKjDPG 1.2: Tutorial
Sunday, March 15, 2026, 15:00–16:00, AM 00.014
Jets 101: Reconstruction, Calibration, and Substructure at the LHC — •Chris Malena Delitzsch — TU Dortmund, Dortmund, Germany
Jets are collimated, high-energy streams of particles that act as proxies for the production of quarks and gluons at short distances. They are ubiquitous at hadron colliders such as the Large Hadron Collider. Jet production and evolution are governed by the parton distribution functions, the strong coupling constant αs, and the rules of Quantum Chromodynamics.
Whether you are new to jet physics or looking to refresh key concepts, this tutorial provides a crash course on the essential tools needed to work with jets at the LHC. Understanding jets is central to many measurements and searches for new physics, and this tutorial offers the foundation needed to explore this rich and evolving field. An introduction is given to jet reconstruction in the ATLAS and CMS experiments, together with the complex calibration chain required before jets can be used in physics analyses. In addition, jet-substructure techniques are presented, which play an important role at the LHC because heavy particles such as e.g. the W/Z bosons or the top quark are frequently produced with large Lorentz boosts, causing their hadronic decay products to become collimated into single jets.
Keywords: Jets; LHC; Boosted; QCD