Sensitivity studies of effective field theory operators in trileptonic tZq final states

In this thesis, the influence of effective field theory operators in the production of single top quarks in association with a Z boson and another quark is investigated at the Atlas detector at Lhc. Effective field theory is an approach for theories beyond the Standard Model to explain the weaknesses of the Standard Model. The aim of this work is to determine exclusion limits for the strength of the operators. For this purpose, sensitive observables are first determined in order to quantify the influence of the operators and then used to limit the possible influence.