Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Perturbative subtraction of lattice artifacts in the computation of
  renormalization constants   The determination of renormalization factors is of crucial importance. They
relate the observables obtained on finite, discrete lattices to their measured
counterparts in the continuum in a suitable renormalization scheme. Therefore,
they have to be computed as precisely as possible. A widely used approach is
the nonperturbative Rome-Southampton method. It requires, however, a careful
treatment of lattice artifacts. They are always present because simulations are
done at lattice spacings $a$ and momenta $p$ with $ap$ not necessarily small.
In this paper we try to suppress these artifacts by subtraction of one-loop
contributions in lattice perturbation theory. We compare results obtained from
a complete one-loop subtraction with those calculated for a subtraction of
$O(a^2)$.

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The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
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The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
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The categories of this paper are: mtrl-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
2
The categories of this paper are: math