Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Collective states in nuclei and many-body random interactions   Low-lying collective states in nuclei are investigated in the framework of
the interacting boson model using an ensemble of random many-body interactions.
It is shown that whenever the number of bosons is sufficiently large compared
to the rank of the interactions, the spectral properties are characterized by a
dominance of L(P)=0(+) ground states and the occurrence of both vibrational and
rotational band structures. This indicates that these features represent a
general and robust property of the collective model space.

5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph