Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Derivation of a 1/r^2 potential term for QQ-bar in a potential model   We clarify the difference among potential models so far proposed to explain
mass spectra of heavy-light mesons via transformations of the vacuum. Applying
our idea to QQ-bar quarkonium, we obtain the extra term, 1/r^2 with positive
coefficient, other than non-relativistic potential terms expected for
quarkonium.

20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph