Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Approaching universality in weakly-bound three-body systems   Atom-dimer scattering below the three-body break-up threshold is studied for
a system of three identical bosons. The atom-dimer scattering length and the
energy of the most weakly-bound three-body state are shown to be strongly
correlated. An appropriate rescaling of the observables reveals the subtlety of
the correlation, and serves to identify universal trends in the unitary limit
of divergent two-body scattering length. The correlation provides a new
quantitative measure of the degree of universality in three-body systems with
short-ranged interactions, as well as a consistency check of effective field
theories and other theoretical models.

36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org