Project Details
Projekt
Operator Analysis of New Physics in Top-Quark Observables (B2b)
Subject Area
Nuclear and Elementary Particle Physics, Quantum Mechanics, Relativity, Fields
Term
from 2019 to 2022
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 396021762
Top-quark observables are a promising place to search for small effects of new physics, thanks to precise predictions and measurements. In this project, we perform a global analysis of new physics in top observables in the framework of an effective field theory. We calculate LHC processes such as top-antitop production or electroweak single-top production to next-to-leading order in QCD and perform a comprehensive fit to LHC data. Flavor observables with a high sensitivity to virtual top-quarks are then combined with high-energy observables, assuming a specific flavor structure of the effective couplings. We also investigate Higgs and electroweak observables that probe top-quark interactions directly or through quantum effects. Our global analysis allows us to identify new search directions and to possibly discover new physics through correlations of several small deviations.
DFG Programme
CRC/Transregios
Applicant Institution
Karlsruher Institut für Technologie
Project Head
Professorin Dr. Susanne Westhoff
