Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: I=2 Pion Scattering Length and Phase Shift with Wilson Fermions   We present preliminary results of scattering length and phase shift for I=2
S-wave $\pi\pi$ system with the Wilson fermions in the quenched approximation.
The finite size method presented by L\"uscher is employed, and calculations are
carried out at $\beta=5.9$ on a $24^3\times 60$ and $32^3\times 60$ lattice.

27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org