On tadpole improvement for staggered fermions

Abstract

An explanation is proposed for the fact that Lepage--Mackenzie tadpole improvement does not work well for staggered fermions. The idea appears to work for all renormalization constants which appear in the staggered fermion self-energy. Wilson fermions are also discussed.

Comments: LATTICE98(improvement), 3 pages, 1 figure, latex, uses espcrc2.sty, epsf.sty