The Staggered η ′ with Smeared Operators

Abstract

We present a refined calculation of the η ′ mass using staggered fermions and Wuppertal smeared operators to suppress excited state contributions. We use quenched and dynamical configurations of size 16 3 × 32, with N f = 0, N f = 2 and N f = 4, and compare our results with the expected theoretical forms from quenched, partially quenched, and unquenched… (More)

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