Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phenomenology of the Invisible Universe   Cosmology is operating now on a well established and tightly constraining
empirical basis. The relativistic LambdaCDM hot big bang theory is consistent
with all the present tests; it has become the benchmark. But the many open
issues in this subject make it reasonable to expect that a more accurate
cosmology will have more interesting physics in the invisible sector of the
universe, and maybe also in the visible part.

33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th