Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: De Sitter Special Relativity as a Possible Reason for Conformal Symmetry
  and Confinement in QCD   Conformal symmetry and color confinement in the infrared regime of QCD are
interpreted by means of a conjectured deSitter $dS_4$ geometry of the internal
space-time of hadrons, an assumption inspired by the hypothesis on deSitter
special relativity. Within such a scenario, the interactions involving the
virtual gluon- and constituent quark degrees of freedom of hadrons are deduced
from the Green functions of Laplace operators on the $dS_4$ geodesics. Then the
conformal symmetry of QCD emerges as a direct consequence of the conformal
symmetry of the $dS_4$ space-time, while the color confinement, understood as
colorlessness of hadrons, appears as a consequence of the inevitable charge
neutrality of the unique closed space-like geodesic on this space, the three
dimensional hyper-sphere $S^3$, on which the hadron's constituents are
conjectured to reside when near rest frame. Mesons are now modelled as quarkish
color-anticolor dipoles, whose free quantum motions on the aforementioned $S^3$
geodesic are perturbed by a potential generated by a gluon--anti-gluon color
dipole. The potential predicted presents itself as the color charge analogue to
the "curved" Coulomb potential, i.e. to the electric potential that defines a
consistent electrostatic theory on a hyper-spherical surface. The advantage of
this method is that it allows to establish a direct relationship of the
potential parameters to the fundamental constants of QCD. We apply the model to
the description of the spectra of the $a_1$ and $f_1$ mesons, and the pion
electric charge form factor, finding fair agreement with data.

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The categories of this paper are: eess
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The categories of this paper are: patt-sol
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The categories of this paper are: stat
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The categories of this paper are: math-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: nlin
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-th
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The categories of this paper are: astro-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: acc-phys
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The categories of this paper are: q-alg
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The categories of this paper are: q-fin
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The categories of this paper are: hep-lat
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The categories of this paper are: plasm-ph
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The categories of this paper are: chao-dyn