Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Composite superstring model for hadrons and extended Virasoro
  superconformal symmetry with supercurrent constraints   Hadron dynamics is formulated in terms of interacting composite strings.
Consistent composite string model with extended Virasoro superconformal
symmetry is found. These composite strings carry flavour and chiral degrees of
freedom on edging two-dimensional surfaces. Necessary correct description of
string amplitudes without states of negative norms in the spectrum of physical
states is reached when special supercurrents conditions are fulfilled.

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The categories of this paper are: cond-mat
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The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con