Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A coupled-channel formalism for three-body final state interaction   From dispersion relation approach, a formalism that describes final state
interaction among three particles in a coupled-channel system is presented in
this work. Different representations of coupled-channel three-body formalism
with only spinless particles in both initial and final states are derived.

14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
2
The categories of this paper are: math
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas