Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Binding Energies and Scattering Observables in the 4Helium3 Atomic
  System   The 4He3 system is investigated using a hard-core version of the Faddeev
differential equations and realistic 4He-4He interactions. We calculate the
binding energies of the 4He trimer but concentrate in particular on scattering
observables. The atom-diatom scattering lengths are calculated as well as the
atom-diatom phase shifts for center of mass energies up to 2.45 mK.

15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex