Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-perturbative evaluation for anomalous dimension in 2-dimensional
  O(3) sigma model   We calculate the wave-function renormalization in 2-dimensional O(3) sigma
model, non- perturbatively. It is evaluated in a box with a finite spatial
extent. We determine the anomalous dimension in the finite volume scheme
through an analysis of the step scaling function. Results are compared with a
perturbative evaluation, and the reasonable behavior is confirmed.

4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
2
The categories of this paper are: math
14
The categories of this paper are: math-ph