Lattice Calculation: Caveats and Challenges. What lattice can and cannot do Caveats of calculating meson masses Gluebal How about the width? Heavy-light mesons Glueballs. What Can We Use Lattice to Calculate?.
Quenched spectrum was calculated with ~ 100,000 configurations.
Number of dynamical fermion configurations are typically in the hundreds.
Y. Chen et al, PRD (2006); PDG (2006)
|T|2 in continuum
W on lattice
The two-point Green’s function decays exponentially at large separation of time
Mass M= Ep(p=0), decay constant ~ Φ