声明
摘要
Abstract
Contents
Chapter 1 Introduction
1．1 The Standard Model
1．2 Quantum Chromodynamics and Quark Gluon Plasma
1．2．1 Chiral symmetry restoration
1．2．2 Confinement and asymptotic freedom
1．2．3 Phase diagram and phase transition
1．2．4 Quark Gluon plasma
1．3 Probe of QGP
1．3．1 The ultra-relativistic heavy ion collision
1．3．2 QGP signature and observable
1．4 Overview of ALICE experiment
Chapter 2 Experimental Facility
2．1 Overview of ALICE detector
2．2 Highlight on sub-detector involve in our analysis
2．2．1 Inner Tracker System
2．2．2 V0 detector
2．2．3 Electromagnetic Calorimeter
2．3 Highlight on reconstruction which involve in our analysis
2．3．1 Primary Vertex Reconstruction
2．3．2 Cluster Reconstruction
chapter 3 Analysis of π0 production in p+p collision in (√ˉ)s
3．1 The motivation of this work
3．1．1 Data set and event selection
3．2 Monte Carlo tuning and reconstruction efficiency
3．3 Raw yield extraction and Invariant yield calculation
3．4 Estimation of systematic uncertainty
3．5 Minimum bias data yield with systematic error
3．6 Analysis of trigger data set
3．7 Combine MB and trigger data results
3．8 Summary
3．9 Appendix：Invariant Mass distribution and Fit
3．9．1 Minimum bias sample
3．9．2 Trigger sample
Chapter 4 Analysis of π0 V2 in Pb+Pb collision in (√ˉ)sNN=2．76 TeV
4．1 The motivation and Methodology of this analysis
4．1．1 Traditional dN／dΦ method used to extract π0 V2
4．1．2 Invariant mass method for study elliptic flow of resonance
4．2 Data set and event selection
4．3 Event Plane reconstruction
4．3．1 Additional correction to Event Plane calculation
4．3．2 Event plane resolution calculation
4．4 π0 reconstruction strategy
4．5 π0 V2 results
4．5．1 raw π0 V2 results
4．5．2 Systematic uncertainty study
4．5．3 Final result
4．6 Summary
4．7 Appendix
Chapter 5 Summary
Publication and activities
Acknowledgement
Bibliography
