Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scattering length of the helium atom - helium dimer collision   We present our recent results on the scattering length of ^4He-^4He_2
collisions. These investigations are based on the hard-core version of the
Faddeev differential equations. As compared to our previous calculations of the
same quantity, a much more refined grid is employed, providing an improvement
of about 10%. Our results are compared with other ab initio, and with model
calculations.

33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex