6533b82cfe1ef96bd128ff5d
RESEARCH PRODUCT
Nonperturbative renormalization of quark bilinears
M. TaleviLeonardo GiustiV. GimenezFederico Rapuanosubject
QuarkPhysicsNuclear and High Energy Physicsgauge theory lattice non-perturbative renormalizationHigh Energy Physics::LatticeHigh Energy Physics - Lattice (hep-lat)FísicaFOS: Physical sciencesQuenched approximationFermionRenormalization groupRenormalizationPseudoscalarFIS/02 - FISICA TEORICA MODELLI E METODI MATEMATICIHigh Energy Physics - LatticeLattice (order)Non-perturbativeMathematical physicsdescription
We compute non-perturbatively the renormalization constants of quark bilinears on the lattice in the quenched approximation at three values of the coupling beta=6/g_0^2=6.0,6.2,6.4 using both the Wilson and the tree-level improved SW-Clover fermion action. We perform a Renormalization Group analysis at the next-to-next-to-leading order and compute Renormalization Group invariant values for the constants. The results are applied to obtain a fully non-perturbative estimate of the vector and pseudoscalar decay constants.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-06-05 |