Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unitarity methods for scattering in two dimensions   The standard unitarity-cut method is applied to several massive
two-dimensional models, including the world-sheet AdS$_5\times S^5$
superstring, to compute $2\to 2$ scattering S-matrices at one loop from tree
level amplitudes. Evidence is found for the cut-constructibility of
supersymmetric integrable models, while for models without supersymmetry (but
integrable) the missing rational terms can be interpreted as a shift in the
coupling.

32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg