Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nuclear Structure in the UCOM Framework: From Realistic Interactions to
  Collective Excitations   The Unitary Correlation Operator Method (UCOM) provides a means for nuclear
structure calculations starting from realistic NN potentials. The dominant
short-range central and tensor correlations are described explicitly by a
unitary transformation. The application of UCOM in the context of the no-core
shell model provides insight into the interplay between dominant short-range
and residual long-range correlations in the nuclear many-body problem. The use
of the correlated interaction within Hartree-Fock, many-body perturbation
theory, and Random Phase Approximation gives access to various nuclear
structure observables throughout the nuclear chart.

13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin