Flavor extrapolations and staggered fermions

Details Flavor extrapolations and staggered fermions Flavor extrapolations and staggered fermions

2006-03-22

arxiv.org/abs/hep-lat/0603020v3

Physics

High Energy Physics

High Energy Physics - Lattice

9 pages, no figures. Latest revision comments on peculiarities persisting at non-zero quark masses

Scientific paper

A popular approximation in lattice gauge theory is an extrapolation in the number of fermion species away from the four fold degeneracy natural with the staggered fermions formulation. I show that at finite lattice spacing and for an odd number of flavors this extrapolation misses terms which, on general principles, must be present in the continuum theory. For a correct continuum limit, this forces unphysical singularities in parameter regions where continuum physics is smooth and all physical particles are massive. These singularities are not expected with other lattice regulators. Finally, I argue that unnatural constraints on certain correlation functions appear even when all quarks are massive.

Affiliated with

Also associated with

No associations

Rating

Flavor extrapolations and staggered fermions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Flavor extrapolations and staggered fermions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flavor extrapolations and staggered fermions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-548493