A Global Analysis of the Standard Model Effective Field Theory in the Production and Decay Channels of a Single Top Quark
arXiv:1905.03616
Abstract
A global analysis of the Standard Model Effective Field Theory (SMEFT) with SFitter is performed using measurements of single top quark production and top quark decay processes from ATLAS and CMS at center-of-mass energies of 7, 8 and 13 TeV. NLO QCD corrections are included in the theoretical predictions of all involved processes. Correlations among theoretical and experimental uncertainties are accounted for using DataPrep, which has been developed by the author. Using the dataset prepared by this software, constraints for the relevant degrees of freedom are derived. Almost all constraints are more than three times more stringent than the values of the literature. This thesis sets the technical and conceptual framework for a global fit of the entire top quark and Higgs boson sectors, which the author is involved in. The project marks an important milestone towards a truly global analysis constraining physics beyond the Standard Model in a model-independent way.
Master Thesis in Physics
References in corpus (11)
- Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
- Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
- Effective-Field-Theory Approach to Top-Quark Production and Decay
- Measurement of the single-top-quark t-channel cross section in pp collisions at sqrt(s) = 7 TeV
- Vices and Virtues of Higgs EFTs at Large Energy
- Evidence for associated production of a single top quark and W boson in pp collisions at sqrt(s) = 7 TeV
- Search for New Physics via Single Top Production at the LHC
- Measurement of the W boson polarization in top quark decays with the ATLAS detector
- Measuring Unification
- Measuring Supersymmetry with Heavy Scalars
- Theoretical aspects of the study of top quark properties