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TUE: Tuesday Contributed Sessions

TUE 3: Quantum Field Theory

TUE 3.7: Talk

Tuesday, September 9, 2025, 15:45–16:00, ZHG003

Forward Physics at the LHC — •Rainer Schicker — Phys. Institute, Heidelberg University

Quantum-Chromodynamics (QCD) was formulated 50 years ago as a gauge theory for describing the interaction between quarks and gluons. The underlying SU(3) symmetry of the color degree of freedom leads to self-couplings of gluons, which results in two very intriguing features of QCD, confinement and asymptotic freedom. A perturbative treatment of QCD processes is only possible for large momentum transfers Q^2. The nonperturbative sector of QCD still carries many mysteries which are very poorly understood, or not at all. Many of these enigmas reveal their nature in soft interactions which are experimentally accessible in forward and very forward measurements at the LHC.

I will outline how future forward measurements at the LHC could contribute to shed light on the many unsolved mysteries of nonperturbative QCD.

Keywords: LHC; QCD; Forward measurements