Staggered Chiral Perturbation Theory at Next-to-Leading Order

Details Staggered Chiral Perturbation Theory at Next-to-Leading Order Staggered Chiral Perturbation Theory at Next-to-Leading Order

2004-09-05

arxiv.org/abs/hep-lat/0409018v3

Phys.Rev.D71:114505,2005

Physics

High Energy Physics

High Energy Physics - Lattice

39 pages, 6 figures (v3: corrected technical error in enumeration of a subset of NLO operators; final conclusions unchanged)

Scientific paper

10.1103/PhysRevD.71.114505

We study taste and Euclidean rotational symmetry violation for staggered fermions at nonzero lattice spacing using staggered chiral perturbation theory. We extend the staggered chiral Lagrangian to O(a^2 p^2), O(a^4) and O(a^2 m), the orders necessary for a full next-to-leading order calculation of pseudo-Goldstone boson masses and decay constants including analytic terms. We then calculate a number of SO(4) taste-breaking quantities, which involve only a small subset of these NLO operators. We predict relationships between SO(4) taste-breaking splittings in masses, pseudoscalar decay constants, and dispersion relations. We also find predictions for a few quantities that are not SO(4) breaking. All these results hold also for theories in which the fourth-root of the fermionic determinant is taken to reduce the number of quark tastes; testing them will therefore provide evidence for or against the validity of this trick.

Affiliated with

Also associated with

No associations

Rating

Staggered Chiral Perturbation Theory at Next-to-Leading Order 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 Staggered Chiral Perturbation Theory at Next-to-Leading Order, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Staggered Chiral Perturbation Theory at Next-to-Leading Order will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-584500