Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universality of the Three-Body Parameter for Efimov States in Ultracold
  Cesium   We report on the observation of triatomic Efimov resonances in an ultracold
gas of cesium atoms. Exploiting the wide tunability of interactions resulting
from three broad Feshbach resonances in the same spin channel, we measure
magnetic-field dependent three-body recombination loss. The positions of the
loss resonances yield corresponding values for the three-body parameter, which
in universal few-body physics is required to describe three-body phenomena and
in particular to fix the spectrum of Efimov states. Our observations show a
robust universal behavior with a three-body parameter that stays essentially
constant.

32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an