Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shell Evolution in Neutron-rich Ge, Se, Kr and Sr Nuclei within RHB
  Approach   The exotic even-even isotopic chains from Z=32 to Z=38 are investigated by
means of the relativistic Hartree-Bogoliubov (RHB) approach with the explicit
Density Dependent Meson-Exchange (DD-ME2) and Density Dependent Point-Coupling
(DD-PC1) models. The classic magic number N=50 is reproduced and the new number
N=70 is predicted to be a robust shell closure by analysing several calculated
quantities such as: two-neutron separation energies, two-neutron shell gap,
neutron pairing energy, potential energy surface and neutron single particle
energies with and without the tensor force. The obtained results are
corroborated by shell model calculations and compared with the predictions of
finite range droplet model (FRDM) and with the available experimental data. A
reasonable and satisfactory agreement between the theoretical models and
experiment is established.

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The categories of this paper are: cs
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
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The categories of this paper are: astro-ph
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The categories of this paper are: nlin
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The categories of this paper are: physics