Non-Perturbative Renormalization for Staggered Fermions (Self-energy Analysis)

2012/11/09 by Jangho Kim, Boram Yoon, Kim, Jangho +3
Mathematics · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Rare-earth and actinide compounds #Spectral Theory in Mathematical Physics #Theoretical and Computational Physics #hep-lat

paper · pdf · doi:10.48550/arxiv.1211.2077

7 pages, 4 figures, Contribution to proceedings of 30th International Symposium on Lattice Field Theory (Lattice 2012), June 24-29, 2012; Cairns, Australia

arxiv created 2012/11/09 · openalex publication_date 2012/11/09 · arxiv updated 2012/11/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We present preliminary results of data analysis for the non-perturbative renormalization (NPR) on the self-energy of the quark propagators calculated using HYP improved staggered fermions on the MILC asqtad lattices. We use the momentum source to generate the quark propagators. In principle, using the vector projection operator of (γ_μ⊗ 1) and the scalar projection operator (1 ⊗ 1), we should be able to obtain the wave function renormalization factor Z_q' and the mass renormalization factor Z_q ⋅ Z_m. Using the MILC coarse lattice, we obtain a preliminary but reasonable estimate of Z_q' and Z_q ⋅ Z_m from the data analysis on the self-energy.

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