Universe Colloquium: Precise determination of the top-quark mass

by Giorgio Cortiana (MPP)

Wednesday 28 Oct 2015, 16:30 → 17:30 Europe/Berlin

seminar room (Excellence Cluster Universe, Boltzmannstrasse 2, Garching)

The top quark is the heaviest elementary particle known and its mass is a fundamental parameter of the Standard Model (SM). The value of the top-quark mass affects theory predictions of particle production cross-sections required for exploring Higgs boson properties and searching for New Physics (NP). Its precise determination is essential for testing the overall consistency of the SM, to constrain NP models, through precision electroweak fits, and has an extraordinary impact on the Higgs sector, and on the SM extrapolations to high-energies. The methodologies, the results, and the main theoretical and experimental challenges related to the top quark measurements and combinations are discussed and reviewed. Finally, the prospects for the improvement of the top-quark mass precision during the upcoming LHC runs are briefly outlined. The Universe Colloquium is followed by a social gathering with wine and cheese.