Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unification of gravity and the harmonic oscillator on a quantum black
  hole horizon I: Nonperturbative particle scattering and Veneziano amplitudes   A relativistic quantum model of particle scattering near the horizon of a
microscopic black hole unifies gravity and the harmonic-oscillator force. The
model is obtained by modifying a harmonic-oscillator nonstandard Lagrangian for
a closed system of relativistic quarks to eliminate any cosmic background
frame. Formulated in terms of the Planck units, the model has only one
parameter, the cosmic number N2. Other results include (1) quark confinement
through cluster decomposition rather than a binding potential, (2) lepton
substructure without violation of known experimental results, (3) a
spontaneously broken symmetry between leptons and hadrons with leptons behaving
as free particles and hadrons which scatter with Veneziano-type amplitudes, (5)
realistic particle masses and sizes, and (6) a solution of a cosmic-number
problem in cosmology.

19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
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The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an