Maria Parappilly (CSSM)
CSSM
Wednesday, October 12
Seminar Room, First Floor, Physics, University of Adelaide
Scaling behavior of quark propagator in full QCD.
We study the scaling behavior of the quark propagator on two lattices with similar physical volume in Landau gauge with 2+1 flavors of dynamical quarks. We use configurations generated with an improved staggered (``Asqtad'') action by the MILC collaboration. The calculations are performed on a 28^3 X 96 lattice with a lattice spacing of a = 0.09 fm and on a 20^3 X 64 lattice with a lattice spacing of a = 0.125 fm. We calculate the quark mass function and wave-function renormalization function for a variety of bare quark masses. We compare the behavior of Z(q^2) and M(q^2) on two lattices with different lattice spacing and similar physical volume. We found that Z(q^2) and M(q^2) on both lattices shows good scaling behaviors.