声明
Contents
List of Figures
List of Tables
摘要
Abstract
1 Introduction
2 Theoretical overview
2．1 The standard model of particle physics
2．1．1 The fundamental particles
2．1．2 The fundamental forces
2．1．3 Gauge symmetry
2．1．4 Quantum chromodynamics
2．1．5 Electroweak interaction
2．2 The Brout-Englert-Higgs mechanism
2．2．1 The SM Higgs
2．3 Physics on Hadron Colliders
2．3．1 Phenomenology of proton-proton collisions
2．3．2 Standard Model Higgs physics at the Hadron Colliders
3 The LHC and the ATLAS detector
3．1 CERN
3．2 Large Hadron Collider
3．2．1 The experiments on the LHC machine
3．3 Luminosity and pile-up
3．4 The ATLAS detector
3．4．1 The inner detector
3．4．2 The calorimeter
3．4．3 The muon spectrometer
3．4．4 The magnet system
3．4．5 The ATLAS trigger and data acquisition system
3．5 Event reconstruction
3．5．1 Track and vertex reconstruction
3．5．2 Electrons
3．5．3 Muon
3．5．4 Hadronic τ
3．5．5 Jets
3．5．6 Missing transverse energy
4 The H→WW*→evμv analysis
4．1 The overview of the H→WW*→lvlv analysis
4．2 The results of the H→WW*→evμv analysis by using36．1 fb-1 Run2 data
4．3 Dataset and MC samples
4．4 Objects and observables
4．4．1 Leptons
4．4．2 Jets
4．4．3 Missing transverse momentum
4．4．4 Overlap removal
4．4．5 observables
4．5 Event selection
4．5．1 Preselection
4．5．2 ggF 0-jet category
4．5．3 ggF 1-jet category
4．6 Background estimation
4．6．1 WW control region
4．6．2 Top control region
4．6．3 Z→ττ control region
4．6．4 W+jets background estimation
4．6．5 Wγ validation region
4．7 Systematic uncertainties
4．7．1 Experimental uncertainties
4．7．2 Theoretical uncertainties
4．8 Statistical analysis
4．8．1 Profile likelihood procedure
4．8．2 Test statistic and P-values
4．8．3 Asimov dataset
4．8．4 Statistical treatment for the ggF Njet=0 and Njet=1 category
4．8．5 Combined fit
5 Prospects for combined Higgs measurements at the High Luminosity LHC(HL-LHC) with the ATLAS detector
5．1 Introduction
5．2 Individual channels
5．3 Combination
5．3．1 Global signal strength
5．3．2 Production cross-sections
5．3．3 Branching ratio
5．3．4 Production mode cross-sections in each decay channels
5．3．5 Ratios of cross sections and branching fractions
5．3．6 Measurement of coupling parameters in the K framework
6 Summary and outlook
References
Acknowledgement
Appendices
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