Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New charge radius relations for atomic nuclei   We show that the charge radii of neighboring atomic nuclei, independent of
atomic number and charge, follow remarkably very simple relations, despite the
fact that atomic nuclei are complex finite many-body systems governed by the
laws of quantum mechanics. These relations can be understood within the picture
of independent-particle motion and by assuming neighboring nuclei having
similar pattern in the charge density distribution. A root-mean-square (rms)
deviation of 0.0078 fm is obtained between the predictions in these relations
and the experimental values, i.e., a comparable precision as modern
experimental techniques. Such high accuracy relations are very useful to check
the consistence of nuclear charge radius surface and moreover to predict
unknown nuclear charge radii, while large deviations from experimental data is
seen to reveal the appearance of nuclear shape transition or coexsitence.

16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol