Measurement of the inclusive and fiducial tt̄ production cross-sections in the lepton+jets channel in pp collisions at s = 8 TeV with the ATLAS detect [...] / vorgelegt von Arwa Bannoura. Wuppertal, 20. Juli 2018
Content
- Contents
- Introduction
- Theory
- Experimental setup
- Event generation and simulated samples
- Objects reconstruction, identification and selection
- Event selection, event reconstruction and backgrounds estimation
- Overlap removal and event selection
- tbart reconstruction
- Signal and validation regions
- Particle-level object reconstruction and selection
- Backgrounds estimation
- Events yield
- Data-driven W+jets method
- Discriminating observables
- Sources of systematic uncertainties
- Physics objects modelling
- Signal modelling
- Background modelling and normalisation
- Background normalisation for non-fitted backgrounds
- W+jets modelling
- Multijet background modelling and normalisation
- Luminosity
- Statistical analysis
- Maximum likelihood method
- Evaluation of uncertainties using pseudo-experiments
- Systematic uncertainties paramterised in the likelihood fit
- Extraction of the tbart cross-section
- Uncertainties in the inclusive and fiducial measurement
- Results
- Conclusion and outlook
- Simulated samples
- Shape uncertainties
- Acceptance uncertainties
- List of Figures
- List of Tables
- Bibliography