声明
摘要
Abstract
Contents
Chapter 1 Fundamental theory
1.1 Standard Model of particle physics
1.2 Quantum Chromodynamics
1.3 Quark-Gluon Plasma
1.3.1 Lattice QCD predictions
1.3.2 QCD phase diagram
Chapter 2 Heavy-ion physics
2.1 Ultra-relativistic heavy-ion collisions
2.1.1 Geometry of collisions
2.1.2 Space-time evolution of collisions
2.2 Particle Droduction
2.2.1 Soft processes
2.2.2 Hard processes
2.2.3 Nuclear effects to particle production
2.3 Signatures of t11e quark-gluon plasma
2.3.1 Global observables
2.3.2 Soft probes
2.3.3 Hard probes
Chapter 3 ALICE Experiment at LHC
3.1 Large Hadron Collider
3.2 ALICE detector overview
3.2.1 Central barrel detector system
3.2.2 Forward detectors
3.2.3 Muon spectrometer
3.3 ALICE online system and offline project
3.3.1 ALICE online system
3.3.2 ALICE offline project
Chapter 4 Two-particle azimuthal correlations
4.1 Two-particle correlation analysis method
4.2 Di-hadron correlations
4.2.1 Near-side jet shape
4.2.2 Modication of the jet-particle yield
4.3 Neutral pion-hadron correlations
4.4 Direct photon-hadron correlations
Chapter 5 Data,event,calorimeter cluster and track selection
5.1 Data and Monte-Carlo production selection
5.1.1 Data production selection
5.1.2 Monte-Carlo production selection
5.2 Event selection
5.2.1 Trigger selection
5.2.2 Vertex and centrality selection
5.3 Calorimeter cluster and track selection
5.3.1 Calorimeter clusters
5.3.2 Tracks
Chapter 6 Neutral pion-hadron correlations
6.1 π0-hadron correlation analysis strategy
6.2 Neutral pion identification
6.2.1 π0 identification via cluster splitting
6.2.2 Changed cuts for systematic uncertainty
6.3 Per-trigger correlated yields
6.3.1 Event mixing
6.3.2 Azimuthal correlations
6.3.3 Extraction of associated per-trigger yield
6.4 Correction analysis
6.4.1 π0 contamination correctiion
6.4.2 π0 efficiency correction
6.4.3 π0 and track pT resolution correction
6.4.4 nack efficiency and contamination correction
6.4.5 Applying the corrections
6.5 Systematic uncertainties
6.5.1 Shower shape cuts
6.5.2 π0 invariant mass window cuts
6.5.3 Track cuts
6.5.4 Tracking effciency and contamination
6.5.5 Summary of systematic uncertainties
6.6 Results
6.6.1 Azimuthal correlations
6.6.2 Integrated per-trigger yield
6.6.3 Yield modification factor
6.7 Summary
Chapter 7 Direct photon-hadron correlations
7.1 Measurement observables
7.2 Isolation method
7.2.1 Isolation criterion
7.2.2 Isolated cluster-hadron correlations
7.2.3 Isolated π0-hadron correlations
7.2.4 Isolated photon-hadron correlations
7.3 Statistical Subtraction method
7.3.1 Inclusive γ-hadron correlations
7.3.2 π0/η-hadron correlations
7.3.3 Decaty γ-hadron correlations
7.3.4 Rγ calulation
7.3.5 Direct γ-hadron correlations
7.4 Summary
Chapter 8 Summary and outlook
8.1 Summary
8.1.1 Neutral pion-hadron correlations
8.1.2 Direct photon-hadron correlations
8.2 Outlook
List of publications and activities
Acknowledgments
Bibliography
Appendix A
A.1 Glauber Model
A.1.1 Glauber calculations inputs
A.1.2 Glauber calculations
A.2 Sub-clusters invariant mass in Cluster Splitting method
A.3 Meson trigger correlations in Side Band method