Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lattice Monte Carlo Data versus Perturbation Theory   The differences between lattice Monte Carlo data and perturbation theory are
usually associated with the ``bad'' behaviour of the bare lattice coupling g_0
due to the effects of large (and unknown) higher order coefficients in the g_0
perturbative series. In this philosophy a new, renormalised coupling g' is
defined with the aim of reducing the higher order coefficients of the
perturbative series in g'. An improvement in the agreement between lattice data
and this new perturbation series is generally observed.
  In this paper an alternative scenario is discussed where lattice artifacts
are proposed as the cause of the disagreement between lattice data and the
g_0-perturbative series. We find that this interpretation provides excellent
agreement between lattice data and perturbation theory in g_0 corrected for
lattice artifacts. We show that this viewpoint leads typically to an order of
magnitude improvement in the agreement between lattice data and perturbation
theory, compared to typical g' perturbation expansions. The success of this
procedure leads to a determination of Lambda_MSbar^{N_f=0} of 220 +- 20 MeV.
Lattice data studied includes quenched values of the string tension, the
hadronic scale r_0, the discrete beta function Delta\beta, M_rho, f_pi and the
1P-1S splitting in charmonium. The new 3-loop term of the lattice beta-
function has been incorporated in this study.
  A discussion of the implication of this result for lattice calculations is
presented.

9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc