6533b820fe1ef96bd1279b77
RESEARCH PRODUCT
New results from lattice QCD: Non-perturbative renormalization and quark masses
V. Gimenezsubject
QuarkPhysicsNuclear and High Energy PhysicsParticle physicsHigh Energy Physics::LatticeLattice (group)FOS: Physical sciencesFísicaQuenched approximationLattice QCDAtomic and Molecular Physics and OpticsGluonRenormalizationHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Perturbation theory (quantum mechanics)Non-perturbativedescription
For the first time, we compute non-perturbatively, i.e. without lattice perturbation theory, the renormalization constants of two-fermion operators in the quenched approximation at $\beta=6.0$, 6.2 and 6.4 using the Wilson and the tree-level improved SW-Clover actions. We apply these renormalization constants to fully non-perturbatively estimate quark masses in the $\bar{MS}$ scheme from lattice simulations of both the hadron spectrum and the Axial Ward Identity in the quenched approximation. Some very preliminary unquenched Wilson results obtained from the gluon configurations generated by the T$\chi$L Collaboration at $\beta=5.6$ and $N_{f}=2$ are also discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-10-29 |