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arxiv: hep-lat/0203008 · v1 · submitted 2002-03-12 · ✦ hep-lat

Highly-improved lattice field-strength tensor

S. O. Bilson-Thompson , D. B. Leinweber , A. G. Williams This is my paper
classification ✦ hep-lat
keywords field-strengthimprovedtensoractiondiscretizationerrorshighly-improvedlattice
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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.

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  1. Topological susceptibility and excess kurtosis in SU(3) Yang-Mills theory

    hep-lat 2025-01 unverdicted novelty 4.0

    High-precision lattice computation yields χ_top^{1/4} = 198.1(0.7)(2.7) MeV for SU(3) Yang-Mills after continuum and infinite-volume extrapolation from seven spacings and volumes.