One loop matching factors for staggered bilinear operators with improved glue

Details One loop matching factors for staggered bilinear operators with improved glue One loop matching factors for staggered bilinear operators with improved glue

2009-10-29

arxiv.org/abs/0910.5586v1

PoS LAT2009:201,2009

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 5 figures, Lattice 2009 proceeding

Scientific paper

We present results for matching factors for bilinear operators composed of HYP-smeared staggered fermions and constructed using HYP-smeared fat links. The matching factors are calculated perturbatively at one-loop order. The new feature of our calculation compared to previous work on HYP-smeared staggered fermions is the use of the Symanzik-improved gluon propagator, which allows our results to be applied to our ongoing simulations based on configurations generated by the MILC collaboration. We address the issue of the relative efficiency of various improvement schemes in reducing one-loop corrections to the matching factors.

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