Czirr, Hendrik: Measurement of the charge asymmetry in the top-quark dilepton decay channel in pp collision data at √s = 7 TeV using the ATLAS detectorMessung der Ladungsasymmetrie im dileptonischen Zerfallskanal eines Top-Quark Paares in pp Kollisionsdaten bei √s = 7 TeV aufgezeichnet mit dem ATLAS [...]. 2014
Content
- Abstract
- Zusammenfassung
- Contents
- 1. Introduction
- 2. Top Quark Charge Asymmetry in the Standard Model of Particle Physics
- 2.1 The Standard Model of Particle Physics
- 2.2 The Top-Quark
- 2.3 Standard Model Properties of the Top-Quark
- 2.4 Observables in the Top-Quark Charge Asymmetry Measurement
- 2.5 Top-Quark Charge Asymmetry Beyond the Standard Model
- 3. The Large Hadron Collider
- 3.1 Design Parameters of the Large Hadron Collider
- 3.2 Status and Performance of the LHC
- 3.3 Main Detectors at the LHC
- 3.4 Other Detectors at the LHC
- 4. The ATLAS Detector
- 4.1 ATLAS Coordinate System
- 4.2 Inner Detector
- 4.3 Calorimeter System
- 4.4 Muon System
- 4.5 Magnet System
- 4.6 Trigger System
- 4.7 Data Storage
- 5. Object Definitions
- 6. Signal and Background Simulation
- 6.1 Production of Monte Carlo Samples in ATLAS
- 6.2 File Formats
- 6.3 Top-Quark Pair Production Sample
- 6.4 Background Simulation
- 7. Data Description
- 8. Kinematic Reconstruction of the tt¯-System
- 8.1 Kinematic Likelihood Fitter
- 8.2 Minimisation Algorithm
- 8.3 Use of Heavy Flavour-Tagging Information
- 8.4 Efficiency and Quality of the Reconstruction of the tt¯-System
- 8.5 Reconstructed Top-Quark Charge Asymmetry
- 9. Unfolding
- 9.1 Bayesian Iterative Unfolding
- 9.2 Singular Value Decomposition
- 9.3 Unfolding Studies on Monte Carlo
- 9.4 Estimation of the Settings for the Bayesian Iterative Unfolding
- 9.5 Data Unfolding
- 10. Systematic Uncertainties
- 11. Summary and Outlook
- A. Monte Carlo Samples
- B. Event Yields
- B.1 Signal Monte Carlo Event Yields
- B.2 Comparison of Data with Monte Carlo and Fake Lepton Background, Pretag
- B.3 Comparison of Data with Monte Carlo and Fake Lepton Background, Tagged
- C. Additional Information on the Kinematic Likelihood Fitter
- C.1 Kinematic Reconstruction of the tt¯-System in Dileptonic Decays
- C.2 KLFitter Reconstruction Quality, Pretag
- C.3 KLFitter Reconstruction Quality, Tagged Selection
- C.4 KLFitter Reconstruction Control-Plots, Pretag Selection
- C.5 KLFitter Reconstruction Control-Plots, Tagged Selection
- D. Monte Carlo Unfolding Studies
- D.1 Charge Asymmetry Reweighting Procedure
- D.2 Estimation of the Settings for the BIU, Tagged Event Selection
- D.3 Calculation of the Linear Scaling Uncertainty
- E. Additional Information on Data Unfolding
- F. Unfolding using Singular Value Decomposition
- G. Additional Information on Systematic Uncertainties
- G.1 Monte Carlo Files used for MC Modelling Systematics
- G.2 Linear Scaling Correction for MC Modelling Systematics
- G.3 Additional Information on Monte Carlo modelling Systematics
- G.4 Linear Scaling Correction for Detector Modelling Systematics
- G.5 Additional Information on Detector modelling Systematics
- G.6 Additional Information on Background and Luminosity Systematics
- H. Best Linear Unbiased Estimate
- Bibliography