The gauge dependence of some fermion bilinear RI/MOM renormalization constants is studied by comparing data which have been gauge-fixed in two different realizations of the Landau gauge and in a generic covariant gauge. The very good agreement between the various sets of results and the theory indicates that the numerical uncertainty induced by the lattice gauge-fixing procedure is below the statistical errors of our data sample which is of the order of (1-1.5)%.
Giusti, L., Petrarca, S., Taglienti, B., Tantalo, N. (2003). Numerical exploration of the RI / MOM scheme gauge dependence. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 119, 962-964 [10.1016/S0920-5632(03)01731-6].
Numerical exploration of the RI / MOM scheme gauge dependence
GIUSTI, LEONARDO;
2003
Abstract
The gauge dependence of some fermion bilinear RI/MOM renormalization constants is studied by comparing data which have been gauge-fixed in two different realizations of the Landau gauge and in a generic covariant gauge. The very good agreement between the various sets of results and the theory indicates that the numerical uncertainty induced by the lattice gauge-fixing procedure is below the statistical errors of our data sample which is of the order of (1-1.5)%.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
