Spectral functions of charmonium from 2 flavour anisotropic lattice data
| Autor: | Dhagash Mehta, Chris Allton, Aoife Kelly, Jon-Ivar Skullerud, Mehmet B. Oktay |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Quantum chromodynamics
Physics Quark Particle physics High Energy Physics::Lattice QCD vacuum Hadron Flavour High Energy Physics - Lattice (hep-lat) High Energy Physics::Phenomenology FOS: Physical sciences Fick's laws of diffusion High Energy Physics - Lattice Entropy (information theory) High Energy Physics::Experiment Anisotropy Mathematical Physics |
| Popis: | The spectral functions of QCD can give us insight into properties of hadrons, and they are useful in probing the QCD vacuum. I will discuss the correlators and spectral functions of charmonium in high temperature two flavour QCD. The spectral functions have been obtained using the Maximum Entropy Method from anisotropic lattice data using the conserved vector current. This work has been done as part of the FASTSUM collaboration. We find that the spectral functions for zero momentum are stable. At non-zero momentum the spectral functions are less stable but still produce resonance and transport peaks. This work is part of our programme to calculate the heavy quark diffusion constant. 7 pages, 5 figures, 31st International Symposium on Lattice Field Theory LATTICE 2013 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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