Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extended supersymmetry with central charges in Dirac action with curved
  extra dimensions   We discuss a new realization of $\mathcal{N}$-extended quantum-mechanical
supersymmetry (QM SUSY) with central charges hidden in the four-dimensional
(4D) mass spectrum of higher dimensional Dirac action with curved extra
dimensions. We show that this $\mathcal{N}$-extended QM SUSY results from
symmetries in extra dimensions, and the supermultiplets in this supersymmetry
algebra correspond to the Bogomol'nyi--Prasad--Sommerfield states. Furthermore,
we examine the model of the $S^2$ extra dimension with a magnetic monopole
background and confirm that the $\mathcal{N}$-extended QM SUSY explains the
degeneracy of the 4D mass spectrum.

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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an