Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Conformal Invariance, N-extended Supersymmetry and Massless Spinning
  Particles in Anti-de Sitter Space   Starting with a manifestly conformal ($O(d,2)$ invariant) mechanics model in
$d$ space and 2 time dimensions, we derive the action for a massless spinning
particle in $d$-dimensional anti-de Sitter space. The action obtained possesses
both gauge $N$-extended worldline supersymmetry and local $O(N)$ invarince.
Thus we improve the old statement by Howe et al. that the spinning particle
model with extended worldline supersymmetry admits only flat space-time
background for $N > 2$ (spin greater one). The original $(d+2)$-dimensional
model is characterized by rather unusual property that the corresponding
supersymmetry transformations do not commute with the conformal ones, in spite
of the explicit $O(d,2)$ invariance of the action.

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The categories of this paper are: cond-mat
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The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
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The categories of this paper are: mtrl-th
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The categories of this paper are: cs
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The categories of this paper are: funct-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci
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The categories of this paper are: chao-dyn
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The categories of this paper are: math
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The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
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The categories of this paper are: q-alg
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc