On tadpole improvement for staggered fermions
نویسندگان
چکیده
منابع مشابه
On tadpole improvement for staggered fermions
One-loop renormalization constants for a number of staggered-fermion operators have large finite parts (see e.g. ref. [1]), which appear not to be explained by gluon-tadpole contributions. This is in contrast to the situation with Wilson fermions, where tadpole improvement [2] appears to work well. Staggered and Wilson fermions differ in the way they deal with the doubling problem: in the Wilso...
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We address the locality problem arising in simulations, which take the square root of the staggered fermion determinant as a Boltzmann weight to reduce the number of dynamical quark tastes from four to two. We study analytically and numerically the square root of the staggered fermion operator as a candidate to define a two taste theory from first principles. Although it has the correct weight,...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1999
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(99)85240-2