48,937 research outputs found
First results from the asymmetric O(a) improved Fermilab action
We present first results from calculations using O(a) improved (FNAL)
space-time asymmetric action on a 12^3 x 24 quenched lattice at \beta = 5.7 and
c_SW = 1.57. The asymmetry parameter is determined non-perturbatively from the
energy-momentum dispersion relation. This improvement scheme is mass dependent,
and the calculations have been done in the charm and bottom quark mass sectors
since it is at these heavier masses that the asymmetry is expected to be
relevant.Comment: 3 pp. LaTeX2e, 6PostScript figures, uses espcrc2.sty. Contribution to
Lattice99 (Pisa) proceedings (Improvement and Renormalisation
- …