Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Equivalence of Two-Loop Superstring Amplitudes in the Pure Spinor and
  RNS Formalisms   The pure spinor formalism for the superstring has recently been used to
compute massless four-point two-loop amplitudes in a manifestly super-Poincare
covariant manner. In this paper, we show that when all four external states are
Neveu-Schwarz, the two-loop amplitude coincides with the RNS result.

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The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
0
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: comp-gas
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The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
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The categories of this paper are: ao-sci
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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
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The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an