Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A short explanation of the Duflo-Zuker mass model   In this note we give a short introduction to the Duflo-Zuker shell model mass
formula which has been shown to have great prediction power but is mostly used
as a black box due to its complex nature.

20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int