Lorenz, Anna-Lena: Insights into Thermal Modifications of Charmonium and Bottomonium from a Comparison of Lattice QCD and Perturbative Spectral Functions. 2021
Inhalt
- Introduction
- Heavy Quarkonium Correlators and Spectral Functions
- Hadronic Correlators
- Gaining information on the correlator level
- Spectral functions
- Non-interacting spectral function
- Bound States
- Perturbative spectral function
- The Spectral Function at Low Frequencies
- Transport Peak
- Lattice QCD - A Method To Obtain Correlators
- Discretization
- Scale setting
- Lattice Setup
- Analysis of Statistical Errors
- Renormalization
- Non-perturbative Renormalization Constants and Renormalization Independent Ratios
- Perturbative Renormalization Constants
- Mass Interpolation
- Continuum Extrapolation
- Heavy Quarkonium Correlators and Their Comparison to a Perturbative Spectral Function
- Transport Contribution
- Comparison to Perturbative Constants
- Comparison of Charmonium and Bottomonium
- Estimating the Transport Coefficients
- Thermal Moments
- Combining the Results
- Conclusion
- Renormalization Constants
- Results for the Gaussian Ansatz