Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Structure of $^{14}$C and $^{14}$O nuclei calculated in the variational
  approach   The structure of mirror $^{14}$C and $^{14}$O nuclei has been studied in the
framework of the five-particle model (three $\alpha$-particles and two
nucleons). Interaction potentials are proposed, which allowed the energy and
radius of $^{14}$C nucleus, as well as the energy of $^{14}$O one, to agree
with experimental data. On the basis of the variational approach with the use
of Gaussian bases, the energies and wave functions for five-particle systems
under consideration are calculated. The charge radius of $^{14}$O nucleus, as
well as the charge density distributions and the form factors for both nuclei,
are predicted.

25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org