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RESEARCH PRODUCT
Non-perturbative improvement of the vector current in Wilson lattice QCD
Harvey B. MeyerTim Harrissubject
PhysicsNuclear and High Energy PhysicsParticle physicsCurrent (mathematics)DiscretizationHigh Energy Physics::LatticeHigh Energy Physics - Lattice (hep-lat)Order (ring theory)FOS: Physical sciencesObservableLattice QCDFermionAction (physics)Theoretical physicsHigh Energy Physics - LatticeLattice gauge theorydescription
Many observables of interest in lattice QCD are extracted from correlation functions involving the vector current. If Wilson fermions are used, it is therefore of practical importance that, besides the action, the current be O($a$) improved in order to remove the leading discretization errors from the observables. Here we introduce and apply a new method to determine the improvement coefficient for the two most widely used discretizations of the current.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-06-17 |