Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comparison Between Two Numerical Schemes to Study the Spectra of Charmed
  Quarkonium   Two numerical methods are developed to reduce the solution of the radial
Schr\"odinger equation for proposed heavy quark-antiquark interactions, into
the solution of the eigenvalue problem for the infinite system of tridiagonal
matrices. Our perspective is a numerical approach relies on finding the proper
numerical method to investigate the static properties of heavy
quarkonia-mesons, such as spectrum, radius ... etc., with implantation of both
the nonrelativistic quark model and the ingredients of the quantum
chromodynamics (QCD) theory. The application of these proposed schemes resulted
in mass spectra of charmed-quarkonium (charmonium) multiplets, which are
compared with the experimental published profiles of Particle Data Group (PDG).
Besides, the normalized radial wave-functions of the charmonium various bound
states are represented. The convergence of each numerical recipe versus the
iteration number N and the radial distance is investigated through this work.
Although it was observed that our numerical treatments are reliable to study
charmed Quarkonium bound states profile, we found that one of these proposed
techniques is favored over the other in terms of high precision comparisons
with experiments and convergence analysis.

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The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
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The categories of this paper are: plasm-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
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The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
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The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph