Highly improved lattice field strength tensor
Mar, 2002
22 pages
Published in:
- Annals Phys. 304 (2003) 1-21
e-Print:
- hep-lat/0203008 [hep-lat]
Report number:
- ADP-01-50-T482
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Abstract:
We derive an O(a^4)-improved lattice version of the continuum field-strength tensor. Discretization errors are reduced via the combination of several clover terms of various sizes, complemented by tadpole improvement. The resulting improved field-strength tensor is used to construct O(a^4)-improved topological charge and action operators. We compare the values attained by these operators as we cool several configurations to self-duality with a previously defined highly-improved action and assess the relative scale of the remaining discretization errors.Note:
- 22 pages, 7 postscript figures Report-no: ADP-01-50/T482
- gauge field theory: SU(N)
- lattice field theory: action
- field strength
- charge: topological
- numerical methods: Monte Carlo
- numerical calculations: Monte Carlo
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