Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Structure of the ground and excited states in $_{\Lambda}^{9}$Be nucleus   We investigate properties of bound and resonance states in the
$_{\Lambda}^{9}$Be nucleus. To reveal the nature of these states, we use a
three-cluster $2\alpha+\Lambda$ microscopic model. The model incorporates
Gaussian and oscillator basis functions and reduces a three-cluster
Schr\"{o}dinger equation to a two-body like many-channel problem with the
two-cluster subsystems ($_{\Lambda}^{5}$He and $^8$Be) being in a bound or a
pseudo-bound state. Influence of the cluster polarization on the energy and
widths of resonance states in $_{\Lambda}^{9}$Be and on elastic and inelastic
$_{\Lambda}^{5}$He+$\alpha$ scattering is analyzed.

25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
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