Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Green's Function Monte Carlo approach to SU(3) Yang-Mills theory in
  (3+1)D   A 'forward walking' Green's Function Monte Carlo algorithm is used to obtain
expectation values for SU(3) lattice Yang-Mills theory in (3+1) dimensions. The
ground state energy and Wilson loops are calculated, and the finite-size
scaling behaviour is explored. Crude estimates of the string tension are
derived, which agree with previous results at intermediate couplings; but more
accurate results for larger loops will be required to establish scaling
behaviour at weak coupling.

21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat