Short distance current correlators: Comparing lattice simulations to the instanton liquid

Details Short distance current correlators: Comparing lattice simulations to the instanton liquid Short distance current correlators: Comparing lattice simulations to the instanton liquid

2001-06-01

arxiv.org/abs/hep-lat/0106001v2

Phys.Rev. D64 (2001) 094508

Physics

High Energy Physics

High Energy Physics - Lattice

18 pages, Revtex, 11 postscript figures. Some changes. Version to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.64.094508

Point to point correlators of currents are computed in quenched QCD using a chiral lattice fermion action, the overlap action. I compare correlators made of exact quark propagators with correlators restricted to low (less than 500 MeV) eigenvalue eigenmodes of the Dirac operator. In many cases they show qualitative resemblence (typically at small values of the quark mass and distances larger than 0.4 fm) and they differ qualitatively at larger quark masses or at very short distance. Lattice results are in qualitative agreement (and in the difference of vector and axial vector channels, quantitative agreement) with the expectations of instanton liquid models. The scalar channel shows the effects of a quenched finite volume zero mode artifact, a negative correlator.

Affiliated with

Also associated with

No associations

Rating

Short distance current correlators: Comparing lattice simulations to the instanton liquid 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 Short distance current correlators: Comparing lattice simulations to the instanton liquid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Short distance current correlators: Comparing lattice simulations to the instanton liquid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-724886