Higgs Boson Pair Production in the Standard Model and Beyond The Standard Model of Particle Physics The Building Blocks of the SM From Symmetries to Interactions Phenomenology and Experimental Status of Higgs Boson Physics Higgs Boson Pair Phenomenology in the SM Non-resonant BSM HH Production Resonant BSM HH Production Experimental Status of HH Physics Combining Direct with Indirect Searches The CMS Detector at the LHC The Large Hadron Collider MC Generation and Data Processing Reconstruction of Trigger Primitives for the HGCAL Level-1 Trigger The High Granularity Calorimeter and Other Detector Upgrades The CMS Phase-2 Trigger System The High Granularity Calorimeter Detector Upgrades in Other LHC Experiments The Reconstruction of Trigger Primitives in HGCAL Development of a Simplified HGCAL Geometry and Event Processing Chain Discussion and Future Directions Resonant Search for \hhbbtt{}: Setting the Stage A Note on the Inclusion Method Selection and Categorization Mass Regression of the Tau Lepton Pair Modeling of Background Processes
Resonant Search for \hhbbtt{}: Extracting the Limits
Signal Extraction
Normalization Uncertainties The Maximum Likelihood Method Finding a Signal in HEP Experiments Expected and Observed Limits Comparison with Other Results Prospects for HH Searches Going Beyond the Narrow Width Approximation in HH Resonant Searches The Stability of the Electroweak Vacuum Summary of ATLAS Results on Higgs Boson Pair Production Final Results in Table Format Fraction of Muons with Large Transverse Momentum Additional Plots on MET Scale Factors B, C and D distributions for the ABCD Method \printbibliography[heading=bibintoc]