出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Renormalization conditions imposed on quark bilinear vertex functions in the conventional
RI/MOM scheme use exceptional momentum configurations. With practical values for the lattice
cutoff, these vertex functions are contaminated with unwanted low energy physics (pion pole,
zero modes, etc), which is a large source of systematic error. These effects can be reduced by using
non-exceptional momenta. We discuss the quark mass renormalization with non-exceptional
momenta using 2+1 flavor domain wall fermions based on a recently proposed RI/SMOMscheme.
