Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: WKB Method and Relativistic Potential Models   Based on the Dirac approach we have developed the relativistic vision of the
WKB method for centrally symmetrical potential with mixed Lorenz structure. We
have obtained relativistic wavefunctions of light quark and the new rule of
quantization containing the spin-orbit interaction. These gives us the
possibility of finding the energy levels and decay width of hydrogen-like
quark-systems.

31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ