Search for low relativistic magnetic monopoles at the IceCube Neutrino Observatory / vorgelegt von M. Sc. Frederik Hermann Lauber. Wuppertal, Juli 2021
Inhalt
- Abstract
- Zusammenfassung
- Contents
- List of Figures
- List of Tables
- Introduction
- IceCube Neutrino Observatory
- Magnetic Monopoles
- Maxwell's Equations
- Dirac Magnetic Monopoles
- 't Hooft-Polyakov Magnetic Monopoles
- Magnetic Monopoles in Grand Unified Theories
- Rest Mass
- Kinetic Energy
- Stopping Power
- Earth Shielding
- Exclusion Limits for Magnetic Monopole Flux
- Machine Learning
- Feature Space
- Sampled Supervised Binary Classification
- Machine Learning Based Estimators
- Regularization Systems and Techniques
- EXtreme Gradient Boosting
- Light Emission of Magnetic Monopoles in Ice
- Direct Cherenkov Radiation
- Indirect Cherenkov Radiation
- Luminescence Light Emissions
- Expected Light Yields
- Simulation
- Digital Optical Module Response
- Photon Propagation Inside the Ice
- Physical Signature to In-Ice Photons
- Event Selection and Reconstructions
- IceCube Event Selection
- Level 0: Events at Data Acquisition
- Level 1: Filtering at the South Pole
- Level 2: MonopoleFilter16 Filter Selection
- Analysis Specific Quality Selection Steps
- Level 3: MonopoleFilter16 filter, In-Ice Array
- Level 4-6: Coincident Particle Rejection
- Level 7: Global Linefit Cut
- Level 8: Corner Clipper Removal
- Level 9: Machine Learning Based Selection
- Results
- Remaining Events
- Event Origin
- Internal Consistency of Remaining Events
- Low Relativistic Magnetic Monopole Flux Limit
- Conclusion and Outlook
- Improved LineFit
- Earth Shielding for Intermediate Magnetic Charges
- Individual Systematic Effects
- Input Variables for the Last Analysis Selection Step
- Input Feature Importance
- Data of Derived Flux Limit
- Acronyms
- Bibliography