Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: WKB approximation under Killingbeck potential and its application to
  double heavy meson mass spectrum   As we all known that non-relativistic or semi-relativistic constituent quark
models can describe a large number of the meson sand baryon properties with
surprising accuracy. In this work, we studied Killingbeck potential by using
WKB approximation in the constituent quark model. The implicit approximate
solution of the energy eigenvalue of the Schr\"{o}dinger equation is obtained
by using appropriate quantization conditions. Under the Killingbeck potential
with the WKB approximation, we studied the spectra of double heavy mesons and
predict the masses of high excited states in $c\bar{c}$, $b\bar{b}$ and
$b\bar{c}$ families. Finally, we discuss the application scope of double heavy
mesons in Killingbeck potential.

31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph