Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Orbitally excited D and B mesons in the approach of the QCD string with
  quarks at the ends   In this letter we discuss the masses and the splittings of 1(2S+1)P_J states
in the spectrum of D and B mesons, as they appear in the approach of the QCD
string with quarks at the ends. We find good agreement of our predictions with
those of other QCD-motivated models as well as with the lattice and
experimental data, including recent experimental results. We discuss the
ordering pattern for P levels in D- and B-mesonic spectrum.

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The categories of this paper are: q-bio
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The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
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The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
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The categories of this paper are: supr-con
21
The categories of this paper are: adap-org