Chiral Yang-Mills theory

For more info about our services contact : help@bestpfe.com

Table of contents

Introduction
1 The Standard Model of particle physics
1.1 The elementary particles and their interactions
1.1.1 The fermions
1.1.2 The bosons and the fundamental interactions
1.2 The Standard Model formalism
1.2.1 Chiral Yang-Mills theory
1.2.2 The Standard Model case
1.3 The Higgs boson
1.3.1 The Higgs mechanism
1.3.2 The fermionic masses
1.4 Summary on the Standard Model
1.5 Our current knowledge of the Higgs boson
1.5.1 Theoretical limits on the Higgs boson mass
1.5.2 Direct limits on the Higgs boson mass
1.5.3 Electroweak experimental constraints on the Higgs boson mass
1.6 Beyond the Standard Model
2 The ATLAS experiment
2.1 The LHC
2.1.1 Proton-proton phenomenology
2.1.2 Physics goals of the general-purpose experiments at the LHC
2.2 The ATLAS detector
2.2.1 The inner detector
2.2.1.1 The pixel detector
2.2.1.2 The silicon microstrip tracker
2.2.1.3 The transition-radiation tracker
2.2.1.4 Inner detector environmental services
2.2.2 The calorimeters
2.2.2.1 The electromagnetic calorimeter
2.2.2.2 Hadronic calorimeter
2.2.2.3 Forward calorimeter
2.2.3 The muon spectrometer
2.3 The ATLAS trigger system
3 The pixel detector
3.1 General description
3.1.1 Layout
3.1.2 Pixel detector sensor and frontend electronics
3.1.3 Overview of the pixel detector data acquisition system
3.1.4 Overview of the pixel detector slow-control system
3.2 Detector calibration and conditions
3.2.1 Description of calibration scans
3.2.2 Calibration results
3.2.3 Special pixel map
3.2.4 Ofine access to slow-control information
3.3 Noise measurements with the pixel detector
3.3.1 Noise measurements on surface with a partial detector
3.3.2 Online noise masking procedure
3.3.3 Noise studies in-situ with the full detector
3.3.3.1 Noise properties and noise stability
3.3.3.2 Update frequency for the online noise mask
3.3.3.3 Results after noise masking
3.4 Pixel hit efciency with cosmic rays
3.4.1 Basic selection of tracks and clusters
3.4.2 Underestimation of the number of holes
3.4.3 Inefciency due to cluster-track association
3.4.4 Inefciencies and biases due to problematic pixels
3.4.5 Summary of tracking-dependent efciency and various corrections
3.4.6 Cluster intrinsic efciency
3.4.7 Efciency for various detector components
3.4.8 Systematic uncertainties
3.5 Conclusion
4 The t¯tH(H !b¯b) channel
4.1 The Higgs boson at the LHC
4.2 The light Higgs boson scenario with ATLAS
4.3 The t¯tH(H !b¯b) channel
4.4 Monte Carlo generation and detector simulation
4.5 Previous studies
4.6 Scope of the analysis
4.7 Important denitions
4.8 Event pre-selection
4.8.1 Trigger efciency
4.8.2 Lepton pre-selection
4.8.2.1 Electron pre-selection
4.8.2.2 Muon pre-selection
4.8.3 Jet pre-selection and calibration
4.8.3.1 Overlaps with electrons
4.8.3.2 Jet four-momentum corrections
4.8.4 B-tagging
4.8.5 Results of pre-selection on signal and background
4.9 Reconstruction of the leptonically decayingW boson
4.10 Reconstruction of the hadronically decayingW boson
4.11 Top-quark pair reconstruction
4.11.1 The cut-based approach
4.11.2 The multivariate approaches
4.12 Higgs boson reconstruction
4.13 Signal purity
4.13.1 Maximal achievable purity after preselection
4.13.2 Jet resolution effects
4.13.3 Closer look at jet combinatorics
4.14 Background extraction from data
4.15 Systematic errors
4.15.1 Final signicance estimate
4.16 Conclusion
Conclusion