Seminarium "Teoria cząstek elementarnych i kosmologia"

The remarkable precision of LEP and other lepton colliders in the past has been instrumental for testing and understanding the Standard Model. In particular, it was possible to estimate, by their effects on loop quantum corrections, the top quark and Higgs boson masses before observation of these particles at hadron colliders. At the time when Nature asks broad questions to which the Standard Model offers no answers, particle physicists are eager to use all available means that could give hints towards physics that goes beyond the present framework. Colliders of the next generation might well play this exploratory role in the future. However, precise calculations of radiative corrections within the Standard Model remain essential for future physics studies. In the talk, physics opportunities at the future colliders will be described. The most demanding calculations connected with determination of electroweak observables in the vicinity of the Z-boson resonance at the electron-positron Future Circular Collider will be discussed. Recent developments in methods and tools for multi-loop calculations will be reviewed, too.