Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pregeometrical Formulation of Berkovits' Open RNS Superstring Field
  Theories   We propose a pregeometrical formulation of Berkovits' open
Ramond-Neveu-Schwarz (RNS) superstring field theories. We show that Berkovits'
open RNS superstring field theories arise by expanding around particular
solutions of the classical equations of motion for this theory. Our action
contains pure ghost operators only and so is formally background independent.

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The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
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The categories of this paper are: funct-an
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The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: math-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: q-bio
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: comp-gas