Bilard protonowy w LHC

Abstract. Proton-proton elastic scattering at high energy is a process with simple kinematics but surprisingly complex dynamics. Measurements of these processes at particle colliders require dedicated detectors and unusual measurement conditions. In the article, I describe the physics of elastic processes and the experimental method in the context of the measurement performed by the ATLAS Collaboration at the LHC accelerator. I present the key elements of the data analysis and discuss the consequences of the obtained results for our understanding of the strong interactions