Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonsymmetrized hyperspherical harmonics with realistic NN potentials   The Schroedinger equation is solved for an A-nucleon system using an
expansion of the wave function in nonsymmetrized hyperspherical harmonics. Our
approach is both an extension and a modification of the formalism developed by
Gattobigio et al.. The extension consists in the inclusion of spin and isospin
degrees of freedom such that a calculation with more realistic NN potential
models becomes possible, whereas the modification allows a much simpler
determination of the fermionic ground state. The approach is applied to four-
and six-body nuclei (4He, 6Li) with various NN potential models. It is shown
that the results for ground-state energy and radius agree well with those from
the literature.

23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an