Speaker:  Michael Buchoff, Univ of Maryland 

Title: Effective Field Theory for Anisotropic Wilson Lattices

Abstract:

Non-physical artifacts due to discretized space and time pollute the 
numerical results of lattice QCD.  Therefore, through the use of effective 
field theory, the artifacts from these finite lattice spacings can be 
accounted for and removed.  Recently, anisotropic Wilson lattices (Wilson 
lattices with different spacing in space and time) have been used in many 
numerical computations in order to probe higher energy states and acquire 
better resolution.  However, the resulting costs are additional broken 
symmetries that will lead to new lattice artifacts.  Therefore, in this 
talk, these effects will be accounted for in the framework of effective 
field theory and from the resulting chiral perturbation theory, pion 
masses, decay constants, and I=2 pi-pi scattering are calculated.