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Nonperturbative renormalization in the RI-SMOM Scheme and gribov uncertainty in the RI-MOM scheme for staggered bilinears
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- Authors
- Issue Date
- 2015
- Publisher
- Proceedings of Science
- Citation
- Proceedings of Science, Vol.14-18-July-2015
- Abstract
- We present results of renormalization factors for bilinear operators obtained using the nonperturbative renormalization method (NPR) in the RI-SMOM schemes. The operators are constructed using HYP staggered quarks on the MILC asqtad lattice (Nf = 2+1). We compare results in the RI-SMOM schemes with those in the RI-MOM scheme for the V ⊗ S and S ⊗ S operators. Since we use Landau gauge fixing, we study the effect of Gribov ambiguity on the wave function renormalization Zq in the RI-MOM scheme. We find that the Gribov uncertainty is negligibly small for Zq in the RI-MOM scheme.
- ISSN
- 1824-8039
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