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Light hadron masses with a tadpole-improved next-nearest-neighbour lattice fermion action

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arxiv hep-lat/9603001 v2 pith:2SYN7DRD submitted 1996-03-01 hep-lat

H.R. Fiebig (Physics Department , FIU University Park , Miami , Florida) R.M. Woloshyn (TRIUMF , Vancouver , B.C. Canada) This is my paper · ORCID
classification hep-lat
keywords actiondonefermionhadronlatticemassescalculationsnext-nearest-neighbour
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abstract

Calculations of hadron masses are done in quenched approximation using gauge field and fermion actions which are both corrected for discretization errors to $O(a^2)$ at the classical level and which contain tadpole improvement factors. The fermion action has both nearest-neighbour and next-nearest-neighbour couplings in the kinetic and Wilson terms. Simulations done at lattice spacings of $0.27$ and $0.4$fm yield hadron masses which are already quite close to experimental values. The results are compared to Wilson action calculations done at comparable lattice spacings.

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