14–18 Jul 2015
Kobe International Conference Center
Asia/Tokyo timezone

Nonperturbative renormalization in the RI-SMOM scheme and Gribov copies for staggered bilinears

14 Jul 2015, 17:30
20m
404 (Kobe International Conference Center)

404

Kobe International Conference Center

6-9-1 Minatojima-nakamachi, Chuo-ku, Kobe, Hyogo 650-0046, Japan
Talk Standard Model Parameters and Renormalization Standard Model Parameters and Renormalization

Speaker

Mr Sungwoo Park (Seoul National University)

Description

We present renormalization factors for the bilinear operators obtained using the nonperturbative renormalization method (NPR) in RI-SMOM scheme for improved staggered fermions on the MILC asqtad lattice (Nf=2+1). We compare the RI-SMOM result to the RI-MOM scheme result and the one-loop perturbative result. Since the NPR requires Landau gauge fixing, we study related Gribov copy problem in staggered NPR analysis.

Primary author

Mr Sungwoo Park (Seoul National University)

Co-authors

Mr Jeonghwan Pak (Seoul National University) Prof. Weonjong Lee (Seoul National University) Dr jangho Kim (Korea Institute of Science and Technology Information)

Presentation materials