Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Covariant Map Between Ramond-Neveu-Schwarz and Pure Spinor Formalisms
  for the Superstring   A covariant map between the Ramond-Neveu-Schwarz (RNS) and pure spinor
formalisms for the superstring is found which transforms the RNS and pure
spinor BRST operators into each other. The key ingredient is a dynamical
twisting of the ten spin-half RNS fermions into five spin-one and five
spin-zero fermions using bosonic pure spinors that parameterize an SO(10)/U(5)
coset. The map relates massless vertex operators in the two formalisms, and
gives a new description of Ramond states which does not require spin fields. An
argument is proposed for relating the amplitude prescriptions in the two
formalisms.

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The categories of this paper are: hep-ph
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The categories of this paper are: funct-an
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The categories of this paper are: atom-ph
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-th
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The categories of this paper are: eess
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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: adap-org
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The categories of this paper are: cs
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The categories of this paper are: astro-ph
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The categories of this paper are: nlin
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn