Measurement of the t-channel single top quark production cross section with the ATLAS detector at s = 7 TeV / vorgelegt von Philipp Sturm. 2012
Content
The Top-Quark within the Standard Model
The ATLAS Detector at the Large Hadron Collider
The Large Hadron Collider
The ATLAS Detector
Superconducting Magnet System
Inner Detector Tracking System
Calorimetry
Muon Spectrometer
Luminosity Detectors
Trigger and Data Acquisition
LHC Commissioning and ATLAS Data Taking Performance
Object Reconstruction
Track and Vertex Reconstruction
Charged Lepton Reconstruction
Jet Reconstruction
Missing Transverse Energy
Top Quark Reconstruction
Modelling of Signal and Background Processes
Event Selection and Event Yield
Candidate Event Classification
Neural Networks
Preprocessing of the Input Variables
Neural Network Technique
Training of the Neural Network
Training Sample
Discriminating Variables
Input Variable Validation
Result of the Neural Network Training
Analysis
Conclusion and Outlook
QCD estimation and control distributions
Comparison of the jet-electron event shapes in the tagged and pretag dataset
Fitted ETmiss distributions in the electron channel
Control distributions for the fit of the jet-electron model in the electron channel
Fitted ETmiss distributions in the muon channel
Control distributions for the fit of the jet-electron model in the muon channel
Systematic Uncertainty Evaluation
Validation of the Input Variables
Discriminating Variables in the 2-Jet Pretag Channel
Discriminating Variables in the 3-Jet Pretag Channel
Input Variables Normalised to Fit Result
Bibliography