Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Many-Particle and Many-Hole States in Neutron-Rich Ne Isotopes Related
  to Broken N=20 Shell Closure   The low-lying level structures of $^{26}{\rm Ne}$, $^{28}{\rm Ne}$ and
$^{30}{\rm Ne}$ which are related to the breaking of the N=20 shell closure
have been studied by the framework of the deformed-basis antisymmetrized
molecular dynamics plus generator coordinate method using Gogny D1S force. The
properties of the many-particle and many-hole states are discussed as well as
that of the ground band. We predict that the negative-parity states in which
neutrons are promoted into $pf$-orbit from $sd$ orbit have the small excitation
energy in the cases of $^{28}{\rm Ne}$ and $^{30}{\rm Ne}$ which, we regard, is
a typical phenomena accompanying the breaking of N=20 shell closure. It is also
found that the neutron $4p4h$ structure of $^{30}{\rm Ne}$ appears in low
excitation energy which contains $\alpha + ^{16}{\rm O}$ correlations.

10
The categories of this paper are: q-bio
2
The categories of this paper are: math
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th